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1

Candidate wind-turbine-generator site summarized meteorological data for December 1976-December 1981. [Program WIND listed  

SciTech Connect

Summarized hourly meteorological data for 16 of the original 17 candidate and wind turbine generator sites collected during the period from December 1976 through December 1981 are presented. The data collection program at some individual sites may not span this entire period, but will be contained within the reporting period. The purpose of providing the summarized data is to document the data collection program and provide data that could be considered representative of long-term meteorological conditions at each site. For each site, data are given in eight tables and a topographic map showing the location of the meteorological tower and turbine, if applicable. Use of information from these tables, along with information about specific wind turbines, should allow the user to estimate the potential for long-term average wind energy production at each site.

Sandusky, W.F.; Renne, D.S.; Hadley, D.L.

1982-09-01

2

Site matching of wind turbine generators: a case study  

Microsoft Academic Search

Site matching of wind turbine generators is investigated based on the appropriate selection of statistical models and means of wind speed data. The wind speed means are computed using arithmetic mean, root mean square and cubic mean cuberoot. Wind speed frequency distributions are modelled using Weibull and Rayleigh probability density functions. Wind speed data of an existing wind power station,

S. H. Jangamshetti; V. G. Rau

1999-01-01

3

Site matching of wind turbine generators: A case study  

SciTech Connect

Site matching of wind turbine generators is investigated based on appropriate selection of statistical models and means of wind speed data. The wind speed means are computed using arithmetic mean, root mean square and cubic mean cuberoot. Wind Speed frequency distributions are modeled using Weibull and Rayleigh probability density functions. Wind speed data of an existing wind power station, located at Kappadagudda, Karnataka, India, is used for computational purposes. The analytically obtained capacity factors are validated by comparing with the actual capacity factors obtained at Kappadagudda. It is observed that the capacity factors computed from the Weibull statistical model using cubic mean of wind speed data fairly match the actual capacity factors obtained from Kappadagudda wind power station. Various commercially available wind turbine generators are used for site matching study. The model described in the paper is useful for planning of wind power stations as it can be applied for accurate assessment of wind power potential at a site.

Jangamshetti, S.H.; Rau, V.G.

1999-12-01

4

Candidate wind turbine generator site: annual data summary, January 1981-December 1981  

SciTech Connect

Summarized hourly meteorological data for 34 candidate and wind turbine generator sites for calendar year 1981 are presented. These data are collected for the purpose of evaluating the wind energy potential at these sites and are used to assist in selection of potential sites for installation and testing of large wind turbines in electric utility systems. For each site, wind speed, direction, and distribution data are given in eight tables. Use of information from these tables, with information about specific wind turbines, should allow the user to estimate the potential for wind energy production at each site.

Sandusky, W.F.; Buck, J.W.; Renne, D.S.; Hadley, D.L.; Abbey, O.B.

1982-07-01

5

Economic index for selection of wind turbine generator at a site  

Microsoft Academic Search

In this paper a new methodology to select a wind turbine generator from the view point of performance and economic considerations is presented. Weibull probability density function is used to analyze the wind data and the performance analysis is based on computing the capacity factors. The economic considerations involve computation of cost of energy based on the energy yield, capital

Sangamesh S. Doddamani; Suresh H. Jangamshetti

2008-01-01

6

Matching wind turbine generators with wind regime in Egypt  

Microsoft Academic Search

This paper presents a novel method of matching wind turbine generators to a site using turbine performance index (TPI) in conjunction with minimum deviation ratio (DR) between rated speed of wind turbine generator (WTG) and optimal speed and resulting in minimum cost of energy (COE). The methodology allows yielding higher energy production at higher capacity factor and minimum cost of

Ahmed R. Abul’Wafa

2011-01-01

7

Candidate wind-turbine generator site cumulative meteorological data summary and data for January 1982 through September 1982  

SciTech Connect

Summarized cumulative hourly meteorological data for 20 new sites selected in early 1980 as part of the expanded candidate site program are presented. The reporting period is July 1980 through September 1982. The data collection program at some individual sites may not span this entire period, but will be contained within the reporting period. The purpose of providing the summarized data is to document the data collection program and to provide data that could be considered representative of longer-term meteorological conditions at each site. For each site, data are given in eight tables and in a topographic map showing the approximated location of the meteorological tower and turbine, if applicable. Use of the information from these tables, along with information about specific wind turbines, should allow the user to estimate the potential for longer-term average wind energy production at each site. Two appendices of other data are provided. Appendix A contains summarized data collected at new and original sites during the period January 1982 through September 1982. Appendix B contains cumulative summarized data for those original sites selected in 1976 with data collection programs continuing into 1982.

Sandusky, W.F.; Buck, J.W.; Renne, D.S.; Hadley, D.L.; Abbey, O.B.; Bradymire, S.L.; Gregory, J.L.

1983-08-01

8

Computational intelligence for control of wind turbine generators  

Microsoft Academic Search

This paper summarizes past and ongoing research in the area of the application of computational intelligence (CI) for control of wind turbine generators (WTGs). Several intelligent design approaches and control strategies, including optimal design of WTG controllers using particle swarm optimization (PSO) and mean-variance optimization (MVO) algorithms and adaptive critic design-based coordinated optimal adaptive control for wind plants and shunt

Wei Qiao; Jiaqi Liang; Ganesh K. Venayagamoorthy; Ronald Harley

2011-01-01

9

Optimal site matching of wind turbine generator: Case study of the Gulf of Suez region in Egypt  

Microsoft Academic Search

During the last few years, Egypt has emerged as the leader of wind power in the Middle East and Africa. In the Gulf of Suez region, a continuously expanding large-scale grid-connected wind farm is available at Zafarana site. The Gulf of EL-Zayt site in the Gulf of Suez region is now under extensive studies related to wind power projects such

M. EL-Shimy

2010-01-01

10

Effect of wind turbine generator model and siting on wind power changes out of large WECS arrays  

NASA Technical Reports Server (NTRS)

Methods of reducing the WECS generation change through selection of the wind turbine model for each site, selection of an appropriate siting configuration, and wind array controls are discussed. An analysis of wind generation change from an echelon and a farm for passage of a thunderstorm is presented. Reduction of the wind generation change over ten minutes is shown to reduce the increase in spinning reserve, unloadable generation and load following requirements on unit commitment when significant WECS generation is present and the farm penetration constraint is satisfied. Controls on the blade pitch angle of all wind turbines in an array or a battery control are shown to reduce both the wind generation change out of an array and the effective farm penetration in anticipation of a storm so that the farm penetration constraint may be satisfied.

Schleuter, R. A.; Park, G. L.; Lotfalian, M.; Dorsey, J.; Shayanfar, H.

1981-01-01

11

Mod-5A wind turbine generator program design report. Volume 3: Final design and system description, book 2  

NASA Astrophysics Data System (ADS)

The design, development and analysis of the 7.3MW MOD-5A wind turbine generator is documented. The report is divided into four volumes: Volume 1 summarizes the entire MOD-5A program, Volume 2 discusses the conceptual and preliminary design phases, Volume 3 describes the final design of the MOD-5A, and Volume 4 contains the drawings and specifications developed for the final design. Volume 3, book 2 describes the performance and characteristics of the MOD-5A wind turbine generator in its final configuration. The subsystem for power generation, control, and instrumentation subsystems is described in detail. The manufacturing and construction plans, and the preparation of a potential site on Oahu, Hawaii, are documented. The quality assurance and safety plan, and analyses of failure modes and effects, and reliability, availability and maintainability are presented.

1984-08-01

12

Mod-5A wind turbine generator program design report. Volume 3: Final design and system description, book 2  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3MW MOD-5A wind turbine generator is documented. The report is divided into four volumes: Volume 1 summarizes the entire MOD-5A program, Volume 2 discusses the conceptual and preliminary design phases, Volume 3 describes the final design of the MOD-5A, and Volume 4 contains the drawings and specifications developed for the final design. Volume 3, book 2 describes the performance and characteristics of the MOD-5A wind turbine generator in its final configuration. The subsystem for power generation, control, and instrumentation subsystems is described in detail. The manufacturing and construction plans, and the preparation of a potential site on Oahu, Hawaii, are documented. The quality assurance and safety plan, and analyses of failure modes and effects, and reliability, availability and maintainability are presented.

1984-01-01

13

Effective Lightning Protection For Wind Turbine Generators  

Microsoft Academic Search

A wind turbine generator is the most exposed of all types of generators connected to electric utility systems. Wind turbines are most often erected in hostile lightning environments. Lightning damage to wind turbines is costly in terms of repair and replacement of equipment. Lightning damage is the single largest cause of unplanned downtime in wind turbines, and that downtime is

Bruce Glushakow

2007-01-01

14

Microprocessor control of a wind turbine generator  

NASA Technical Reports Server (NTRS)

A microprocessor based system was used to control the unattended operation of a wind turbine generator. The turbine and its microcomputer system are fully described with special emphasis on the wide variety of tasks performed by the microprocessor for the safe and efficient operation of the turbine. The flexibility, cost and reliability of the microprocessor were major factors in its selection.

Gnecco, A. J.; Whitehead, G. T.

1978-01-01

15

Dynamics and stability of wind turbine generators  

NASA Astrophysics Data System (ADS)

This paper describes the dynamic and stability properties of wind turbine generators connected to power systems. Both synchronous and induction generators are considered. A comparison is made between wind turbines, steam, and hydro units. The unusual phenomena associated with wind turbines are emphasized. The general control requirements are discussed, as well as various schemes for torsional damping such as speed sensitive stabilizer and blade pitch control. Interaction between adjacent wind turbines in a 'wind farm' is also considered.

Hinrichsen, E. N.; Nolan, P. J.

1982-08-01

16

Model 0A wind turbine generator FMEA  

NASA Technical Reports Server (NTRS)

The results of Failure Modes and Effects Analysis (FMEA) conducted for the Wind Turbine Generators are presented. The FMEA was performed for the functional modes of each system, subsystem, or component. The single-point failures were eliminated for most of the systems. The blade system was the only exception. The qualitative probability of a blade separating was estimated at level D-remote. Many changes were made to the hardware as a result of this analysis. The most significant change was the addition of the safety system. Operational experience and need to improve machine availability have resulted in subsequent changes to the various systems which are also reflected in this FMEA.

Klein, William E.; Lalli, Vincent R.

1989-01-01

17

Broad band sound from wind turbine generators  

NASA Technical Reports Server (NTRS)

Brief descriptions are given of the various types of large wind turbines and their sound characteristics. Candidate sources of broadband sound are identified and are rank ordered for a large upwind configuration wind turbine generator for which data are available. The rotor is noted to be the main source of broadband sound which arises from inflow turbulence and from the interactions of the turbulent boundary layer on the blade with its trailing edge. Sound is radiated about equally in all directions but the refraction effects of the wind produce an elongated contour pattern in the downwind direction.

Hubbard, H. H.; Shepherd, K. P.; Grosveld, F. W.

1981-01-01

18

Wind turbine generator interaction with conventional diesel generators on Block Island, Rhode Island. Volume 1: Executive summary  

NASA Technical Reports Server (NTRS)

Primary results are summarized for a three-part study involving the effects of connecting a MOD-OA wind turbine generator to an isolated diesel power system. The MOD-OA installation considered was the third of four experimental nominal 200 kW wind turbines connected to various utilities under the Federal Wind Energy Program and was characterized by the highest wind energy penetration levels of four sites. The study analyses address: fuel displacement, dynamic interaction, and three modes of reactive power control. These analyses all have as their basis the results of the data acquisition program conducted on Block Island, Rhode Island.

Wilreker, V. F.; Stiller, P. H.; Scott, G. W.; Kruse, V. J.; Smith, R. F.

1984-01-01

19

Wind turbine generator interaction with conventional diesel generators on Block Island, Rhode Island. Volume 1: Executive summary  

NASA Astrophysics Data System (ADS)

Primary results are summarized for a three-part study involving the effects of connecting a MOD-OA wind turbine generator to an isolated diesel power system. The MOD-OA installation considered was the third of four experimental nominal 200 kW wind turbines connected to various utilities under the Federal Wind Energy Program and was characterized by the highest wind energy penetration levels of four sites. The study analyses address: fuel displacement, dynamic interaction, and three modes of reactive power control. These analyses all have as their basis the results of the data acquisition program conducted on Block Island, Rhode Island.

Wilreker, V. F.; Stiller, P. H.; Scott, G. W.; Kruse, V. J.; Smith, R. F.

1984-02-01

20

Wind Turbine Generator System Safety and Function Test Report for the Entegrity EW50 Wind Turbine  

SciTech Connect

This report summarizes the results of a safety and function test that NREL conducted on the Entegrity EW50 wind turbine. This test was conducted in accordance with the International Electrotechnical Commissions' (IEC) standard, Wind Turbine Generator System Part 2: Design requirements for small wind turbines, IEC 61400-2 Ed.2.0, 2006-03.

Smith, J.; Huskey, A.; Jager, D.; Hur, J.

2012-11-01

21

Wind Turbine Generator System Safety and Function Test Report for the Ventera VT10 Wind Turbine  

SciTech Connect

This report summarizes the results of a safety and function test that NREL conducted on the Ventera VT10 wind turbine. This test was conducted in accordance with the International Electrotechnical Commissions' (IEC) standard, Wind Turbine Generator System Part 2: Design requirements for small wind turbines, IEC 61400-2 Ed.2.0, 2006-03.

Smith, J.; Huskey, A.; Jager, D.; Hur, J.

2012-11-01

22

Mod-5A wind turbine generator program design report. Volume 4: Drawings and specifications, book 2  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. There are four volumes. This volume contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. This is the second book of volume four. Some of the items it contains are specs for the emergency shutdown panel, specs for the simulator software, simulator hardware specs, site operator terminal requirements, control data system requirements, software project management plan, elastomeric teeter bearing requirement specs, specs for the controls electronic cabinet, and specs for bolt pretensioning.

1984-01-01

23

Measurements and observations of noise from a 4.2 megawatt (WTS-4) wind turbine generator  

NASA Astrophysics Data System (ADS)

Noise measurements and calculations are being made for large wind turbine generators to develop a data base for use in designing and siting such systems for community acceptance. As part of this program, measurements were made on the WTS-4 wind turbine generator during its acceptance runs. This paper presents the results of these exploratory measurements for power output conditions in the range 1.0 to 4.2 MW. Data include noise levels, spectra, radiation patterns, effects of distance, and the associated perception thresholds for use in the further development of acceptance criteria for this type of machine.

Shepherd, K. P.; Hubbard, H. H.

1983-05-01

24

Measurements and observations of noise from a 4.2 megawatt (WTS-4) wind turbine generator  

NASA Technical Reports Server (NTRS)

Noise measurements and calculations are being made for large wind turbine generators to develop a data base for use in designing and siting such systems for community acceptance. As part of this program, measurements were made on the WTS-4 wind turbine generator during its acceptance runs. This paper presents the results of these exploratory measurements for power output conditions in the range 1.0 to 4.2 MW. Data include noise levels, spectra, radiation patterns, effects of distance, and the associated perception thresholds for use in the further development of acceptance criteria for this type of machine.

Shepherd, K. P.; Hubbard, H. H.

1983-01-01

25

Normalized power curves as a tool for identification of optimum wind turbine generator parameters  

Microsoft Academic Search

This paper presents a novel method of matching wind turbine generators to a site using normalized power and capacity factor curves. The site matching is based on identifying optimum turbine speed parameters from turbine performance index curve, which is obtained from the normalized curves, so as to yield higher energy production at higher capacity factor. The wind speeds are parameterized

Suresh H. Jangamshetti; V. Guruprasada Rau

2001-01-01

26

Normalized Power Curves as a Tool for Identification of Optimum Wind Turbine Generator Parameters  

Microsoft Academic Search

This paper presents a novel method of matching wind turbine generators to a site using normalized power and capacity factor curves. The site matching is based on identifying optimum turbine speed parameters from the turbine performance index curve, which is obtained from the normalized curves, so as to yield higher energy production at a higher capacity factor. The wind speeds

V. G. Rau; S. H. Jangamshetti

2001-01-01

27

Variable speed generator technology options for wind turbine generators  

NASA Technical Reports Server (NTRS)

The electrical system options for variable speed operation of a wind turbine generator are treated in this paper. The key operating characteristics of each system are discussed and the major advantages and disadvantages of each are identified

Lipo, T. A.

1995-01-01

28

Understanding the unbalanced-voltage problem in wind turbine generation  

Microsoft Academic Search

Most wind turbines are equipped with line-connected induction generators. Induction generators are very attractive as wind turbine generators due to their low cost, ruggedness, and the need for little or no maintenance. At constant frequency, the induction generator operates in a small range of speeds and, therefore, it operates with a small range of slips with respect to synchronous speed.

E. Muljadi; D. Yildirim; T. Batan; C. P. Butterfield

1999-01-01

29

Review of failures and condition monitoring in wind turbine generators  

Microsoft Academic Search

Increasing wind power generation quantity in power systems needs obviously reliable operation. Therefore, accurate condition monitoring and fault diagnosis are almost mandatory. This paper aims to report recent works on condition monitoring and fault diagnosis for wind turbine generators. Wind turbines are subjected to different sort of failures, thus before stating condition monitoring and fault diagnosis methods it is necessary

Z. Daneshi-Far; G. A. Capolino; H. Henao

2010-01-01

30

Wind Turbine Generator Condition-Monitoring Using Temperature Trend Analysis  

Microsoft Academic Search

Condition monitoring can greatly reduce the maintenance cost for a wind turbine. In this paper, a new condition-monitoring method based on the nonlinear state estimate technique for a wind turbine generator is proposed. The technique is used to construct the normal behavior model of the electrical generator temperature. A new and improved memory matrix construction method is adopted to achieve

Peng Guo; David Infield; Xiyun Yang

2012-01-01

31

Rotor Speed Stability Analysis of Constant Speed Wind Turbine Generators  

Microsoft Academic Search

This paper presents an analysis of rotor speed stability of a constant speed wind turbine generator with active stall control. To analyze the rotor speed stability, a 3-phase short circuit fault on a sample system with a constant speed WTG has been simulated using DIgSILENT software package. From the simulation results, it has been shown that the operating point of

M. G. Kanabar; C. V. Dobariya; S. A. Khaparde

2006-01-01

32

Phenomenon of magnetic force in permanent magnet wind turbine generators  

Microsoft Academic Search

This study presents the investigation on the magnetic force phenomenon in permanent magnet (PM) wind turbine generators. Owing to the presence of PMs, the inherent and ever-existing magnetic force between the stator and rotor becomes one of the most critical phenomena in these generators. Whether it is during the assembly process throughout the manufacturing stages or when the generator is

Y. K. Chin; P. Kanninen; P. Maki-Ontto; R. Sakki; H. Lendenmann

2009-01-01

33

Development of Trouble Diagnosis Technology of 50W Grade Small Wind Turbine Generator  

Microsoft Academic Search

Establishment of an early trouble diagnosis system is demanded to prevent damage of wind turbine generator. Therefore, AE signal occurring by the damage of a wind blade was detected with the AE sensor which installed to the body of wind turbine generator and a pole. In this study, length of a blade of a small wind turbine generator was changed

Masashige Takaoka; Kazuki Inohata; Takuma Miyake; Daisuke Tashima; Masahisa Otsubo; Toshio Bouno

2008-01-01

34

Wind Turbine Generator System Power Performance Test Report for the ARE442 Wind Turbine  

SciTech Connect

This report summarizes the results of a power performance test that NREL conducted on the ARE 442 wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 12: Power Performance Measurements of Electricity Producing Wind Turbines, IEC 61400-12-1 Ed.1.0, 2005-12. However, because the ARE 442 is a small turbine as defined by IEC, NREL also followed Annex H that applies to small wind turbines. In these summary results, wind speed is normalized to sea-level air density.

van Dam, J.; Jager, D.

2010-02-01

35

The 100 kW experimental wind turbine generator project  

NASA Technical Reports Server (NTRS)

The Energy Research and Development Administration and the NASA Lewis Research Center engaged jointly in a Wind Energy Program which included the design and erection of a 100 kW wind turbine generator. This test machine consists of a rotor turbine, transmission, shaft, alternator, and tower. The rotor, measuring 125 feet in diameter and consisting of two variable pitch blades, operates at 40 rpm and generates 100 kW of electrical power at a wind velocity of 18 mph. The entire assembly is placed on top of a tower 100 feet above ground level. The machine was scheduled to be ready for operation in August, 1975.

Puthoff, R. L.; Sirocky, P.

1975-01-01

36

Methods and apparatus for cooling wind turbine generators  

DOEpatents

A wind turbine generator includes a stator having a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis. A rotor is rotatable about the generator longitudinal axis, and the rotor includes a plurality of magnetic elements coupled to the rotor and cooperating with the stator windings. The magnetic elements are configured to generate a magnetic field and the stator windings are configured to interact with the magnetic field to generate a voltage in the stator windings. A heat pipe assembly thermally engaging one of the stator and the rotor to dissipate heat generated in the stator or rotor.

Salamah, Samir A. (Niskayuna, NY); Gadre, Aniruddha Dattatraya (Rexford, NY); Garg, Jivtesh (Schenectady, NY); Bagepalli, Bharat Sampathkumaran (Niskayuna, NY); Jansen, Patrick Lee (Alplaus, NY); Carl, Jr., Ralph James (Clifton Park, NY)

2008-10-28

37

Calculation of guaranteed mean power from wind turbine generators  

NASA Technical Reports Server (NTRS)

A method for calculating the 'guaranteed mean' power output of a wind turbine generator is proposed. The term 'mean power' refers to the average power generated at specified wind speeds during short-term tests. Correlation of anemometers, the method of bins for analyzing non-steady data, the PROP Code for predicting turbine power, and statistical analysis of deviations in test data from theory are discussed. Guaranteed mean power density for the Clayton Mod-OA system was found to be 8 watts per square meter less than theoretical power density at all power levels, with a confidence level of 0.999. This amounts to 4 percent of rated power.

Spera, D. A.

1981-01-01

38

ERCOT's Dynamic Model of Wind Turbine Generators: Preprint  

SciTech Connect

By the end of 2003, the total installed wind farm capacity in the Electric Reliability Council of Texas (ERCOT) system was approximately 1 gigawatt (GW) and the total in the United States was about 5 GW. As the number of wind turbines installed throughout the United States increases, there is a greater need for dynamic wind turbine generator models that can properly model entire power systems for different types of analysis. This paper describes the ERCOT dynamic models and simulations of a simple network with different types of wind turbine models currently available.

Muljadi, E.; Butterfield, C. P.; Conto, J.; Donoho, K.

2005-08-01

39

Control of large wind turbine generators connected to utility networks  

NASA Technical Reports Server (NTRS)

This is an investigation of the control requirements for variable pitch wind turbine generators connected to electric power systems. The requirements include operation in very small as well as very large power systems. Control systems are developed for wind turbines with synchronous, induction, and doubly fed generators. Simulation results are presented. It is shown how wind turbines and power system controls can be integrated. A clear distinction is made between fast control of turbine torque, which is a peculiarity of wind turbines, and slow control of electric power, which is a traditional power system requirement.

Hinrichsen, E. N.

1983-01-01

40

Power fluctuations smoothing and regulations in wind turbine generator systems  

NASA Astrophysics Data System (ADS)

Wind is one of the most popular renewable energy sources and it has the potential to become the biggest energy source in future. Since the wind does not always blow constantly, the output wind power is not constant which may make some problem for the power grid. According to the grid code which is set by independent system operator, ISO, wind turbine generator systems need to follow some standards such as the predetermined acceptable power fluctuations. In order to smooth the output powers, the energy storage system and some power electronics modules are employed. The utilized power electronics modules in the wind turbine system can pursue many different goals, such as maintaining the voltage stability, frequency stability, providing the available and predetermined output active and reactive power. On the other side, the energy storage system can help achieving some of these goals but its main job is to store the extra energy when not needed and release the stored energy when needed. The energy storage system can be designed in different sizes, material and also combination of different energy storage systems (hybrid designs). Combination of power electronics devises and also energy storage system helps the wind turbine systems to smooth the output power according to the provided standards. In addition prediction of wind speed may improve the performance of wind turbine generator systems. In this research study all these three topics are studied and the obtained results are written in 10 papers which 7 of them are published and three of them are under process.

Babazadehrokni, Hamed

41

Optimization of a Small Passive Wind Turbine Generator with Multiobjective Genetic Algorithms  

E-print Network

Optimization of a Small Passive Wind Turbine Generator with Multiobjective Genetic Algorithms A Algorithms (MOGAs) are used for the design of a small wind turbine generator (WTG) coupled to a DC bus improved by optimizing the generator characteristics associated with the wind turbine in relation

Paris-Sud XI, Université de

42

Mod-5A wind turbine generator program design report. Volume 4: Drawings and specifications, book 5  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. There are four volumes. This volume contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. Detail drawings of several assemblies and subassemblies are given. This is the fifth book of volume 4.

1984-01-01

43

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 27, NO. 1, FEBRUARY 2012 465 Dynamics of Type-3 Wind Turbine Generator Models  

E-print Network

, singular systems, small disturbance analysis, switching deadlock, wind turbine generator modeling. I Turbine Generator Models Ian A. Hiskens, Fellow, IEEE Abstract--The influence of wind turbine generators. INTRODUCTION THE dynamic behavior of wind turbine generators (WTGs) is quite different to that of synchronous

Hiskens, Ian A.

44

Sound measurements of the MOD-2 wind turbine generator  

NASA Astrophysics Data System (ADS)

Sound measurements were made for the MOD-2 wind turbine generator for wind conditions of 7.6 to 13.4 m/sec and for output power ratings of about 1 to 2 NW. Both broad band and narrow band data wre obtained for a range of distances and azimuth angles from the machine. The rotor sound spectra are random in character and peak in the frequency ranges 30 to 50 Hz and 800 to 1300 Hz. Both peaks are predictable from experience with helicopter rotors and propellers. Results suggest that the lower frequency peak is due to the effects of inflow turbulence and the higher frequency peak is due to the interactions of the turbulent boundary layers with the trailing edges of the blades. The boundary layer related sound is the dominant component in the audible frequency range and determines the detectability of the machine. It could be detected at a distance of 1350 m in the upwind direction where the background noise was 30 dB (A) and at distances in excess of 2100 m in the downwind direction. Discrete frequency sound components associated with the power generation equipment are measurable in the direction normal to the axis of rotation but are not believed to be significant for detection or community response.

Hubbard, H. H.; Shepherd, K. P.; Grosveld, F. W.

1981-07-01

45

Variable speed wind turbine generator with zero-sequence filter  

DOEpatents

A variable speed wind turbine generator system to convert mechanical power into electrical power or energy and to recover the electrical power or energy in the form of three phase alternating current and return the power or energy to a utility or other load with single phase sinusoidal waveform at sixty (60) hertz and unity power factor includes an excitation controller for generating three phase commanded current, a generator, and a zero sequence filter. Each commanded current signal includes two components: a positive sequence variable frequency current signal to provide the balanced three phase excitation currents required in the stator windings of the generator to generate the rotating magnetic field needed to recover an optimum level of real power from the generator; and a zero frequency sixty (60) hertz current signal to allow the real power generated by the generator to be supplied to the utility. The positive sequence current signals are balanced three phase signals and are prevented from entering the utility by the zero sequence filter. The zero sequence current signals have zero phase displacement from each other and are prevented from entering the generator by the star connected stator windings. The zero sequence filter allows the zero sequence current signals to pass through to deliver power to the utility. 14 figs.

Muljadi, E.

1998-08-25

46

Variable speed wind turbine generator with zero-sequence filter  

DOEpatents

A variable speed wind turbine generator system to convert mechanical power into electrical power or energy and to recover the electrical power or energy in the form of three phase alternating current and return the power or energy to a utility or other load with single phase sinusoidal waveform at sixty (60) hertz and unity power factor includes an excitation controller for generating three phase commanded current, a generator, and a zero sequence filter. Each commanded current signal includes two components: a positive sequence variable frequency current signal to provide the balanced three phase excitation currents required in the stator windings of the generator to generate the rotating magnetic field needed to recover an optimum level of real power from the generator; and a zero frequency sixty (60) hertz current signal to allow the real power generated by the generator to be supplied to the utility. The positive sequence current signals are balanced three phase signals and are prevented from entering the utility by the zero sequence filter. The zero sequence current signals have zero phase displacement from each other and are prevented from entering the generator by the star connected stator windings. The zero sequence filter allows the zero sequence current signals to pass through to deliver power to the utility.

Muljadi, Eduard (Golden, CO)

1998-01-01

47

Variable Speed Wind Turbine Generator with Zero-sequence Filter  

DOEpatents

A variable speed wind turbine generator system to convert mechanical power into electrical power or energy and to recover the electrical power or energy in the form of three phase alternating current and return the power or energy to a utility or other load with single phase sinusoidal waveform at sixty (60) hertz and unity power factor includes an excitation controller for generating three phase commanded current, a generator, and a zero sequence filter. Each commanded current signal includes two components: a positive sequence variable frequency current signal to provide the balanced three phase excitation currents required in the stator windings of the generator to generate the rotating magnetic field needed to recover an optimum level of real power from the generator; and a zero frequency sixty (60) hertz current signal to allow the real power generated by the generator to be supplied to the utility. The positive sequence current signals are balanced three phase signals and are prevented from entering the utility by the zero sequence filter. The zero sequence current signals have zero phase displacement from each other and are prevented from entering the generator by the star connected stator windings. The zero sequence filter allows the zero sequence current signals to pass through to deliver power to the utility.

Muljadi, Eduard (Golden, CO)

1998-08-25

48

Sound measurements of the MOD-2 wind turbine generator  

NASA Technical Reports Server (NTRS)

Sound measurements were made for the MOD-2 wind turbine generator for wind conditions of 7.6 to 13.4 m/sec and for output power ratings of about 1 to 2 NW. Both broad band and narrow band data wre obtained for a range of distances and azimuth angles from the machine. The rotor sound spectra are random in character and peak in the frequency ranges 30 to 50 Hz and 800 to 1300 Hz. Both peaks are predictable from experience with helicopter rotors and propellers. Results suggest that the lower frequency peak is due to the effects of inflow turbulence and the higher frequency peak is due to the interactions of the turbulent boundary layers with the trailing edges of the blades. The boundary layer related sound is the dominant component in the audible frequency range and determines the detectability of the machine. It could be detected at a distance of 1350 m in the upwind direction where the background noise was 30 dB (A) and at distances in excess of 2100 m in the downwind direction. Discrete frequency sound components associated with the power generation equipment are measurable in the direction normal to the axis of rotation but are not believed to be significant for detection or community response.

Hubbard, H. H.; Shepherd, K. P.; Grosveld, F. W.

1981-01-01

49

Stabilization of Wind Turbine Generator System by STATCOM  

NASA Astrophysics Data System (ADS)

Recently voltage-source or current-source inverter based various FACTS devices have been used for flexible power flow control, secure loading, damping of power system oscillation and even for the stabilization of wind energy generation. In this paper, we propose the static synchronous compensator (STATCOM) based on voltage source converter (VSC) PWM technique to stabilize grid connected wind generator system. A simple control strategy of STATCOM is adopted where only measurement of rms voltage at the wind generator terminal is needed. Fuzzy logic controller rather than conventional PI controller is proposed as the control methodology of STATCOM. Multi-mass shaft model of wind turbine generator system (WTGS) is also considered as shaft modeling has a big influence on the transient performance of WTGS. Transient performance of STATCOM connected WTGS is compared also with that of pitch controlled WTGS. Both symmetrical and unsymmetrical faults are analyzed. Moreover, the steady state performance of STATCOM connected WTGS is analyzed. It is reported that STATCOM can reduce the voltage fluctuation significantly. Finally STATCOM is applied to a wind park model with multiple wind generators. Comprehensive results are presented to assess the performance of STATCOM connected WTGS, where the simulations have been done by PSCAD/EMTDC.

Muyeen, S. M.; Mannan, Mohammad Abdul; Ali, Mohd. Hasan; Takahashi, Rion; Murata, Toshiaki; Tamura, Junji

50

Analyzing the requirements for mass production of small wind turbine generators  

Microsoft Academic Search

Mass producibility of small wind turbine generators to give manufacturers design and cost data for profitable production operations is discussed. A 15 kW wind turbine generator for production in annual volumes from 1,000 to 50,000 units is discussed. Methodology to cost the systems effectively is explained. The process estimate sequence followed is outlined with emphasis on the process estimate sheets

T. Anuskiewicz; J. Asmussen; O. Frankenfield

1981-01-01

51

Modeling and Simulation of Grid-connected Superconducting Wind Turbine Generators  

Microsoft Academic Search

Superconducting machines have been proposed to solve the problem of upscaling wind turbine generators. In order to design such machines, since prototyping would be very expensive, it is crucial to be able to simulate the interactions between them and the external systems. Within this framework, this thesis addresses the problem of modeling and simulating grid-connected superconducting wind turbine generators.\\u000a\\u000aThe

L. Queval

2013-01-01

52

MOD-5A wind turbine generator program design report: Volume 1: Executive Summary  

NASA Astrophysics Data System (ADS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator covering work performed between July 1980 and June 1984 is discussed. The report is divided into four volumes: Volume 1 summarizes the entire MOD-5A program, Volume 2 discusses the conceptual and preliminary design phases, Volume 3 describes the final design of the MOD-5A, and Volume 4 contains the drawings and specifications developed for the final design. Volume 1, the Executive Summary, summarizes all phases of the MOD-5A program. The performance and cost of energy generated by the MOD-5A are presented. Each subsystem - the rotor, drivetrain, nacelle, tower and foundation, power generation, and control and instrumentation subsystems - is described briefly. The early phases of the MOD-5A program, during which the design was analyzed and optimized, and new technologies and materials were developed, are discussed. Manufacturing, quality assurance, and safety plans are presented. The volume concludes with an index of volumes 2 and 3.

1984-08-01

53

MOD-5A wind turbine generator program design report: Volume 1: Executive Summary  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator covering work performed between July 1980 and June 1984 is discussed. The report is divided into four volumes: Volume 1 summarizes the entire MOD-5A program, Volume 2 discusses the conceptual and preliminary design phases, Volume 3 describes the final design of the MOD-5A, and Volume 4 contains the drawings and specifications developed for the final design. Volume 1, the Executive Summary, summarizes all phases of the MOD-5A program. The performance and cost of energy generated by the MOD-5A are presented. Each subsystem - the rotor, drivetrain, nacelle, tower and foundation, power generation, and control and instrumentation subsystems - is described briefly. The early phases of the MOD-5A program, during which the design was analyzed and optimized, and new technologies and materials were developed, are discussed. Manufacturing, quality assurance, and safety plans are presented. The volume concludes with an index of volumes 2 and 3.

1984-01-01

54

A preliminary analysis of the audible noise of constant speed, horizontal axis wind turbine generators  

NASA Astrophysics Data System (ADS)

A preliminary analytical procedure developed for calculating certain aerodynamic sound levels produced by large, horizontal axis wind turbine generators (WTG's) such as the DOE/NASA Mods- O, OA, 1, and 22. It postulates a noise component due to the (constant) rotation of the blades of the WTG, plus a wake-noise component that increases with the square of the power produced by the WTG. Sounds from machinery, and low frequency impulsive sounds produced by blade interaction with the wake of the support tower are not considered. In order to evaluate the acceptability of the sounds from WTG's, three noise limits were selected: the noise regulations of the states of Minnesota and Illinois and a U.S. EPA guideline for avoiding noise complaints from the public. The impact of WTG noise was evaluated against these three limits by computing acceptability distances. It is concluded that the infrasonic component of WTG sound, occurring at the blade passage rate, is at a very low level compared with existing limits of acceptability for human health. On the other hand, they could be a source of annoyance to people inside light weight structures (such as some residences) at a WTG site.

Keast, D. N.; Potter, R. C.

1980-07-01

55

National Renewable Energy Laboratory program on lightning risk and wind turbine generator protection  

SciTech Connect

In the early development of wind turbine generators (WTG) in the United States, wind farms were primarily located in California where lightning activity is the lowest in the United States. As such, lightning protection for wind turbines was not considered to be a major issue for designers or wind farm operators. However, wind turbine installations are expanding into the Midwest, Southwest and other regions of the United States where lightning activity is significantly more intense and lightning damage to wind turbines is more common. There is a growing need, therefore, to better understand lightning activity on wind farms and to improve wind turbine lightning protection systems. In support of the U.S. Department of Energy/Electric Power Research Institute (DOE/EPRI) Utility Wind Turbine Verification Program (TVP), the National Renewable Energy Laboratory (NREL) has recently begun to take steps to determine the extent of damage due to lightning and the effectiveness of various lightning protection techniques for wind power plants. Working through the TVP program, NREL will also perform outreach and education to (1) help manufacturers to provide equipment that is adequately designed to survive lightning, (2) make sure that operators are aware of effective safety procedures, and (3) help site designers and wind farm developers take the risk of lightning into account as effectively as possible.

Muljadi, E. [National Renewable Energy Lab., Golden, CO (United States); McNiff, B. [McNiff Light Industry, Blue Hill, ME (United States)

1997-12-31

56

Mod-5A wind turbine generator program design report. Volume 4: Drawings and specifications, book 4  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator are documented. There are four volumes. This volume contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. This volume contains 5 books of which this is the fourth, providing drawings 47A380128 through 47A387125. In addition to the parts listing and where-used list, the logic design of the controller software and the code listing of the controller software are provided. Also given are the aerodynamic profile coordinates.

1984-01-01

57

Mod-5A Wind Turbine Generator Program Design Report. Volume 4: Drawings and Specifications, Book 1  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. Volume 4 contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. This is the first of five books of volume four. It contains structural design criteria, generator step-up transformer specs, specs for design, fabrication and testing of the system, specs for the ground control enclosure, systems specs, slip ring specs, and control system specs.

1984-01-01

58

Representation of Type 4 wind turbine generator for steady state short-circuit calculations  

NASA Astrophysics Data System (ADS)

Various technical impacts are associated to the interconnection of wind turbine generators to the grid. Among them, the increase of short-circuit levels along with its effect on the settings of protecting relays has long acted as an important inhibiting factor for the interconnection of new wind power plants to the grid. This is especially true at the medium voltage level where networks operate close to their short-circuit design value [1]. As renewable energies are progressively replacing traditional power generation sources, short-circuit studies need to adequately assess the impact of newly interconnected wind power plants on the fault level of the network. For planning and design purposes, short-circuit studies are usually performed using steady-state short-circuit programs. Unfortunately, very few have developed models of wind turbine generators that accurately estimate their fault contribution in the phase domain. In particular, no commercial fault-flow analysis program specifically addresses the modeling of inverter-based wind turbine generators which behavior is based on the inverter's characteristics rather than the generator's. The main contribution of this research work is the development of a simplified and yet accurate model of full-scale converter based wind turbine generator, also called Type 4 wind turbine generator, for steady-state short-circuit calculations. The model reproduces the real behavior of the Type 4 wind turbine generator under fault conditions by correctly accounting for the effect of the full-scale converter. The data used for the model is easily accessible to planning engineers. An additional contribution of this research work is the development of a short-circuit algorithm adapted to support the proposed model of Type 4 wind-turbine generator. Short-circuit algorithm based on modified-augmented-nodal analysis (MANA) is solved iteratively to accommodate the proposed model. The algorithm is successfully implemented in CYME 7.0, a commercial distribution system analysis program, to perform short-circuit calculations in multiphase complex unbalanced systems. Detailed study of the behavior of Type 4 wind turbine generator using electromagnetic type programs like EMTP-RV has assessed that the proposed model closely reproduces the real behavior of the wind turbine generator under steady-state fault conditions. The proposed model is then implemented in CYME 7.0 and validated for different fault scenarios using the Fortis Alberta 25 kV distribution system as benchmark. The fault contribution obtained from the proposed model is compared against the one obtained from the previous model implemented in CYME 7.0. The validation test cases show that the proposed model estimates the fault contribution of the wind turbine generator with better precision than the former models. Besides, the performance and robustness of the short-circuit algorithm developed allow handling unbalanced networks with inverter interfaced wind turbine generators as it is based on the MANA formulation.

Kamara, Wouleye

59

Mod-5A wind turbine generator program design report. Volume 3: Final design and system description, book 1  

NASA Astrophysics Data System (ADS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. Volume 3, book 1 describes the performance and characteristics of the MOD-5A wind turbine generator in its final configuration. Each subsystem - the rotor, drivetrain, nacelle, tower and foundation is described in detail.

1984-08-01

60

An Experimental Study of Lightning Overvoltages in Wind Turbine Generation Systems Using a Reduced-Size Model  

Microsoft Academic Search

Wind turbine generation systems are built at locations where few tall structures are found nearby so as to obtain good wind conditions, and thus, they are often struck by lightning. To promote wind power generation, lightning-protection methodologies for such wind turbine generation systems have to be established. This paper presents the result of an experimental study of lightning overvoltages in

Kazuo Yamamoto; Taku Noda; Shigeru Yokoyama; Akihiro Ametani

2006-01-01

61

Mod-5A wind turbine generator program design report. Volume 3: Final design and system description, book 1  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. Volume 3, book 1 describes the performance and characteristics of the MOD-5A wind turbine generator in its final configuration. Each subsystem - the rotor, drivetrain, nacelle, tower and foundation is described in detail.

1984-01-01

62

Variable speed generator application on the MOD-5A 7.3 mW wind turbine generator  

NASA Astrophysics Data System (ADS)

This paper describes the application of a Scherbiustat type variable speed subsystem in the MOD-5A Wind Turbine Generator. As designed by General Electric Company, Advanced Energy Programs Department, under contract DEN3-153 with NASA Lewis Research Center and DOE, the MOD-5A utilizes the subsystem for both starting assistance in a motoring mode and generation in a controlled airgap torque mode. Reactive power control is also provided. The Scherbiustat type arrangement of a wound rotor machine with a cycloconverter in the rotor circuit was selected after an evaluation of variable speed technologies that followed a system evaluation of drivetrain cost and risk. The paper describes the evaluation factors considered, the results of the evaluations and summarizes operating strategy and performance simulations.

Barton, Robert S.

1995-05-01

63

Mod-1 wind turbine generator analysis and design report, volume 1  

NASA Technical Reports Server (NTRS)

The activities leading to the completion of detail design of the MOD-1 wind turbine generator are described. Emphasis is placed on the description of the design as it finally evolved. However, the steps through which the design progressed are also traced in order to understand the major design decisions.

1979-01-01

64

Synchronization of the DOE/NASA 100-kilowatt wind turbine generator with a large utility network  

NASA Technical Reports Server (NTRS)

The DOE/NASA 100 kilowatt wind turbine generator system was synchronized with a large utility network. The system equipments and procedures associated with the synchronization process were described. Time history traces of typical synchronizations were presented indicating that power and current transients resulting from the synchronizing procedure are limited to acceptable magnitudes.

Gilbert, L. J.

1977-01-01

65

Modeling and simulation of an induction drive with application to a small wind turbine generator  

Microsoft Academic Search

Among renewable energies the solution of utilizing wind energy conversion systems is now in a growing trend. A valid choice for operation of such systems may be the use of the induction machine. This study presents modeling and simulation of a stand-alone induction drive with application to a small wind turbine generator system. The model of the induction machine is

L. Tamas; Z. Szekely

2008-01-01

66

Performance of a 3 kW wind turbine generator with variable pitch control system  

Microsoft Academic Search

A prototype 3kW horizontal upwind type wind turbine generator of 4m in diameter has been designed and examined under real wind conditions. The machine was designed based on the concept that even small wind turbines should have a variable pitch control system just as large wind turbines, especially in Japan where typhoons occur at least once a year. A characteristic

Baku M. Nagai; Kazumasa Ameku; Jitendro Nath Roy

2009-01-01

67

Pinson C2E wind turbine generator failure analysis and corrective design modification  

Microsoft Academic Search

On December 4, 1978 wind speeds at the Rocky Flats Small Wind Systems Test Center reached 42 m\\/s. Two failures were observed on the Pinson C2E wind turbine generator during a routine inspection of all wind machines following this windstorm. One failure was fatigue cracks which formed on plates welded to the rotor shaft. The second failure was a number

M. J. Carr; V. K. Grotsky; J. H. Sexton

1980-01-01

68

EFFECT OF PITCH CONTROL AND POWER CONDITIONING ON POWER QUALITY OF VARIABLE SPEED WIND TURBINE GENERATORS  

E-print Network

of these systems is that the induction generators require reactive power from the grid or capacitor banks to meetEFFECT OF PITCH CONTROL AND POWER CONDITIONING ON POWER QUALITY OF VARIABLE SPEED WIND TURBINE GENERATORS Hari Sharma* Trevor Pryor* Syed Islam** *Murdoch University Energy Research Institute (MUERI

69

MOD-1 Wind Turbine Generator Analysis and Design Report, Volume 2  

NASA Technical Reports Server (NTRS)

The MOD-1 detail design is appended. The supporting analyses presented include a parametric system trade study, a verification of the computer codes used for rotor loads analysis, a metal blade study, and a definition of the design loads at each principal wind turbine generator interface for critical loading conditions. Shipping and assembly requirements, composite blade development, and electrical stability are also discussed.

1979-01-01

70

Executive summary: Mod-1 wind turbine generator analysis and design report  

NASA Technical Reports Server (NTRS)

Activities leading to the detail design of a wind turbine generator having a nominal rating of 1.8 megawatts are reported. Topics covered include (1) system description; (2) structural dynamics; (3) stability analysis; (4) mechanical subassemblies design; (5) power generation subsystem; and (6) control and instrumentation subsystem.

1979-01-01

71

Output power smoothing of wind turbine generation system for the 2MW permanent magnet synchronous generators  

Microsoft Academic Search

Effective utilization of renewable energies such as wind energy is expected in place of the fossil fuel. The speed of wind is not remained constant and windmill output power is proportional to the cube of wind speed. In order to wind speed deviation, the output power of wind turbine generators (WTGs) is fluctuated. To reduce the fluctuation, different methods are

Abdul Motin Howlader; Naomitsu Urasaki; Tomonobu Senjyu; Akie Uehara; Atsushi Yona; A. Y. Saber

2010-01-01

72

Output Power Control of Wind Turbine Generator by Pitch Angle Control using Minimum Variance Control  

NASA Astrophysics Data System (ADS)

In recent years, there have been problems such as exhaustion of fossil fuels, e. g., coal and oil, and environmental pollution resulting from consumption. Effective utilization of renewable energies such as wind energy is expected instead of the fossil fuel. Wind energy is not constant and windmill output is proportional to the cube of wind speed, which cause the generated power of wind turbine generators (WTGs) to fluctuate. In order to reduce fluctuating components, there is a method to control pitch angle of blades of the windmill. In this paper, output power leveling of wind turbine generator by pitch angle control using an adaptive control is proposed. A self-tuning regulator is used in adaptive control. The control input is determined by the minimum variance control. It is possible to compensate control input to alleviate generating power fluctuation with using proposed controller. The simulation results with using actual detailed model for wind power system show effectiveness of the proposed controller.

Senjyu, Tomonobu; Sakamoto, Ryosei; Urasaki, Naomitsu; Higa, Hiroki; Uezato, Katsumi; Funabashi, Toshihisa

73

Preliminary analysis of performance and loads data from the 2-megawatt mod-1 wind turbine generator  

NASA Technical Reports Server (NTRS)

Preliminary test data on output power versus wind speed, rotor blade loads, system dynamic behavior, and start-stop characteristics on the Mod-1 wind turbine generator are presented. These data were analyzed statistically and are compared with design predictions of system performance and loads. To date, the Mod-1 wind turbine generator has produced up to 1.5 MW of power, with a measured power versus wind speed curve which agrees closely with design. Blade loads were measured at wind speeds up to 14 m/s and also during rapid shutdowns. Peak transient loads during the most severe shutdowns are less than the design limit loads. On the inboard blade sections, fatigue loads are approximately equal to the design cyclic loads. On the outboard blade sections, however, measured cyclic loads are significantly larger than design values, but they do not appear to exceed fatigue allowable loads as yet.

Spera, D. A.; Viterna, L. A.; Richards, T. R.; Neustadter, H. E.

1979-01-01

74

Mod-5A wind turbine generator program design report. Volume 4: Drawings and specifications, book 3  

NASA Astrophysics Data System (ADS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. This volume contains the drawings and specifications developed for the final design. This volume is divided into 5 books of which this is the third, containing drawings 47A380074 through 47A380126. A full breakdown parts listing is provided as well as a where used list.

1984-08-01

75

Return on capital and earned carbon credit by hybrid solar Photovoltaic—wind turbine generators  

Microsoft Academic Search

This paper presents a methodology to optimise a hybrid solar Photovoltaic—wind turbine generator for the villages situated\\u000a in the remote areas, especially coastal regions of India. Owing to good insolation and wind density, the hybrid system composed\\u000a of 6 photovoltaic (PV) modules, one wind turbine and 3 batteries are sufficient to fulfil all the necessary power demand without\\u000a interruption for

Prabhakant; Basant Agrawal; G. N. Tiwari

2010-01-01

76

Comparison of measured and calculated sound pressure levels around a large horizontal axis wind turbine generator  

NASA Astrophysics Data System (ADS)

Results are reported from a large number of simultaneous acoustic measurements around a large horizontal axis downwind configuration wind turbine generator. In addition, comparisons are made between measurements and calculations of both the discrete frequency rotational harmonics and the broad band noise components. Sound pressure time histories and noise radiation patterns as well as narrow band and broadband noise spectra are presented for a range of operating conditions. The data are useful for purposes of environmental impact assessment.

Shepherd, Kevin P.; Willshire, William L., Jr.; Hubbard, Harvey H.

1989-03-01

77

Comparison of measured and calculated sound pressure levels around a large horizontal axis wind turbine generator  

NASA Technical Reports Server (NTRS)

Results are reported from a large number of simultaneous acoustic measurements around a large horizontal axis downwind configuration wind turbine generator. In addition, comparisons are made between measurements and calculations of both the discrete frequency rotational harmonics and the broad band noise components. Sound pressure time histories and noise radiation patterns as well as narrow band and broadband noise spectra are presented for a range of operating conditions. The data are useful for purposes of environmental impact assessment.

Shepherd, Kevin P.; Willshire, William L., Jr.; Hubbard, Harvey H.

1989-01-01

78

Robust Predictive Control of Variable-Speed Wind Turbine Generator by Self-Tuning Regulator  

Microsoft Academic Search

The parameter variation problem in controller design for wind turbine generator (WTG) systems due to wind speed fluctuations is addressed in this paper. The wind speed is generated by an auto-regressive and moving average (ARMA) model while drive-train components are modelled as a two- mass system described by non-linear equations for accurate dynamic performance assessment. The control of the unit

E. B. Muhando; T. Senjyu; N. Urasaki; A. Yona; T. Funabashi

2007-01-01

79

Mod-5A wind turbine generator program design report. Volume 4: Drawings and specifications, book 3  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. This volume contains the drawings and specifications developed for the final design. This volume is divided into 5 books of which this is the third, containing drawings 47A380074 through 47A380126. A full breakdown parts listing is provided as well as a where used list.

1984-01-01

80

A Study of Generator System Selection for Large Wind Turbine Generator System  

NASA Astrophysics Data System (ADS)

This paper focuses on selection of wind turbine generation systems that include generators, converters and gears. We study three systems: permanent magnet generator (PMG) system, doubly-fed generator (DFG) system and synchronous generator (SYG) system in terms of the system efficiencies and running costs. The system efficiencies and running costs are calculated with considering relation between wind power and wind condition. According to these results, the 1-step gear PMG system is the best choice to large wind turbine system.

Kimura, Mamoru; Ide, Kazumasa; Nishihama, Kazuo; Futami, Motoo; Ichinose, Masaya; Fujigaki, Tetsuo; Iizuka, Motonobu; Imaie, Kazuhiro; Yagi, Yasuomi; Tamura, Jyunji

81

Synchronization of wind turbine generators against an infinite bus under gusting wind conditions  

NASA Technical Reports Server (NTRS)

Studies of synchronizing a wind turbine generator against an infinite bus are performed on a digital computer. In the digital simulation, wind gusts of different magnitudes and durations are hypothesized. Prior to the synchronization, differences of the frequency and phase position between voltages of the alternator and the bus are also included in the simulation. Solutions for rotor speed, generator power angle, electromagnetic torque, wind turbine torque, wind turbine blade pitch angle, and armature current are simulated and presented graphically. The ERDA-NASA 100-kW wind turbine is used as a case study. The results so obtained will thus have immediate applications.

Hwang, H. H.; Gilbert, L. J.

1978-01-01

82

Model-OA wind turbine generator - Failure modes and effects analysis  

NASA Technical Reports Server (NTRS)

The results failure modes and effects analysis (FMEA) conducted for wind-turbine generators are presented. The FMEA was performed for the functional modes of each system, subsystem, or component. The single-point failures were eliminated for most of the systems. The blade system was the only exception. The qualitative probability of a blade separating was estimated at level D-remote. Many changes were made to the hardware as a result of this analysis. The most significant change was the addition of the safety system. Operational experience and need to improve machine availability have resulted in subsequent changes to the various systems, which are also reflected in this FMEA.

Klein, William E.; Lali, Vincent R.

1990-01-01

83

Power train analysis for the DOE/NASA 100-kW wind turbine generator  

NASA Technical Reports Server (NTRS)

Progress in explaining variations of power experienced in the on-line operation of a 100 kW experimental wind turbine-generator is reported. Data are presented that show the oscillations tend to be characteristic of a wind-driven synchronous generator because of low torsional damping in the power train, resonances of its large structure, and excitation by unsteady and nonuniform wind flow. The report includes dynamic analysis of the drive-train torsion, the generator, passive driveline damping, and active pitch control as well as correlation with experimental recordings. The analysis assumes one machine on an infinite bus with constant generator-field excitation.

Seidel, R. C.; Gold, H.; Wenzel, L. M.

1978-01-01

84

Operational-Condition-Independent Criteria Dedicated to Monitoring Wind Turbine Generators: Preprint  

SciTech Connect

To date the existing wind turbine condition monitoring technologies and commercially available systems have not been fully accepted for improving wind turbine availability and reducing their operation and maintenance costs. One of the main reasons is that wind turbines are subject to constantly varying loads and operate at variable rotational speeds. As a consequence, the influences of turbine faults and the effects of varying load and speed are coupled together in wind turbine condition monitoring signals. So, there is an urgent need to either introduce some operational condition de-coupling procedures into the current wind turbine condition monitoring techniques or develop a new operational condition independent wind turbine condition monitoring technique to maintain high turbine availability and achieve the expected economic benefits from wind. The purpose of this paper is to develop such a technique. In the paper, three operational condition independent criteria are developed dedicated for monitoring the operation and health condition of wind turbine generators. All proposed criteria have been tested through both simulated and practical experiments. The experiments have shown that these criteria provide a solution for detecting both mechanical and electrical faults occurring in wind turbine generators.

Yang, W.; Sheng, S.; Court, R.

2012-08-01

85

Transient response to three-phase faults on a wind turbine generator. Ph.D. Thesis - Toledo Univ.  

NASA Technical Reports Server (NTRS)

In order to obtain a measure of its responses to short circuits a large horizontal axis wind turbine generator was modeled and its performance was simulated on a digital computer. Simulation of short circuit faults on the synchronous alternator of a wind turbine generator, without resort to the classical assumptions generally made for that analysis, indicates that maximum clearing times for the system tied to an infinite bus are longer than the typical clearing times for equivalent capacity conventional machines. Also, maximum clearing times are independent of tower shadow and wind shear. Variation of circuit conditions produce the modifications in the transient response predicted by analysis.

Gilbert, L. J.

1978-01-01

86

Mod-5A wind turbine generator program design report. Volume 2: Conceptual and preliminary design, book 1  

NASA Astrophysics Data System (ADS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. There are four volumes. In Volume 2, book 1 the requirements and criteria for the design are presented. The conceptual design studies, which defined a baseline configuration and determined the weights, costs and sizes of each subsystem, are described. The development and optimization of the wind turbine generator are presented through the description of the ten intermediate configurations between the conceptual and final designs. Analyses of the system's load and dynamics are presented.

1984-08-01

87

Mod-5A Wind Turbine Generator Program Design Report. Volume 2: Conceptual and Preliminary Design, Book 1  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. There are four volumes. In Volume 2, book 1 the requirements and criteria for the design are presented. The conceptual design studies, which defined a baseline configuration and determined the weights, costs and sizes of each subsystem, are described. The development and optimization of the wind turbine generator are presented through the description of the ten intermediate configurations between the conceptual and final designs. Analyses of the system's load and dynamics are presented.

1984-01-01

88

The MOD-OA 200 kilowatt wind turbine generator design and analysis report  

NASA Astrophysics Data System (ADS)

The project requirements, approach, system description, design requirements, design, analysis, system tests, installation safety considerations, failure modes and effects analysis, data acquisition, and initial performance for the MOD-OA 200 kw wind turbine generator are discussed. The components, the rotor, driven train, nacelle equipment, yaw drive mechanism and brake, tower, foundation, electrical system, and control systems are presented. The rotor includes the blades, hub and pitch change mechanism. The drive train includes the low speed shaft, speed increaser, high speed shaft, and rotor brake. The electrical system includes the generator, switchgear, transformer, and utility connection. The control systems are the blade pitch, yaw, and generator control, and the safety system. Manual, automatic, and remote control and Dynamic loads and fatigue are analyzed.

Andersen, T. S.; Bodenschatz, C. A.; Eggers, A. G.; Hughes, P. S.; Lampe, R. F.; Lipner, M. H.; Schornhorst, J. R.

1980-08-01

89

Employing static excitation control and tie line reactance to stabilize wind turbine generators  

NASA Technical Reports Server (NTRS)

An analytical representation of a wind turbine generator is presented which employs blade pitch angle feedback control. A mathematical model was formulated. With the functioning MOD-0 wind turbine serving as a practical case study, results of computer simulations of the model as applied to the problem of dynamic stability at rated load are also presented. The effect of the tower shadow was included in the input to the system. Different configurations of the drive train, and optimal values of the tie line reactance were used in the simulations. Computer results revealed that a static excitation control system coupled with optimal values of the tie line reactance would effectively reduce oscillations of the power output, without the use of a slip clutch.

Hwang, H. H.; Mozeico, H. V.; Guo, T.

1978-01-01

90

Prediction of broadband noise from large horizontal axis wind turbine generators  

NASA Technical Reports Server (NTRS)

A method is presented for predicting the broadband noise spectra of large horizontal axis wind turbine generators. It includes contributions from such noise sources as the inflow turbulence to the rotor, the interactions between the turbulent boundary layers on the blade surfaces with their trailing edges and the wake due to a blunt trailing edge. The method is partly empirical and is based on acoustic measurements of large wind turbines and airfoil models. The predicted frequency spectra are compared with measured data from several machines including the MOD-OA, the MOD-2, the WTS-4 and the U.S. Wind-power Inc. machine. Also included is a broadband noise prediction for the proposed MOD-5B. The significance of the effects of machine size, power output, trailing edge bluntness and distance to the receiver is illustrated. Good agreement is obtained between the predicted and measured far field noise spectra.

Grosveld, F. W.

1984-01-01

91

Noise measurements for single and multiple operation of 50 kw wind turbine generators  

NASA Technical Reports Server (NTRS)

The noise characteristics of the U.S. Windpower Inc., 50 kw wind turbine generator were measured at various distances from 30 m to 1100 m and for a range of output power. The generated noise is affected by the aerodynamic wakes of the tower legs at frequencies below about 120 Hz and the blade trailing edge thickness at frequencies of about 2 kHz. Rope strakes and airfoil fairings on the legs did not result in substantial noise reductions. Sharpening the blade trailing edges near the tip was effective in reducing broad band noise near 2 kHz. For multiple machines the sound fields are superposed. A three-fold increase in number of machines (from 1 to 3) results in a predicted increase in he sound pressure level of about 5 dB. The detection threshold for 14 machines operating in a 13 - 20 mph wind is observed to be at approximately 1160 m in the downwind direction.

Hubbard, H. H.; Shepherd, K. P.

1982-01-01

92

Prediction of broadband noise from large horizontal axis wind turbine generators  

NASA Astrophysics Data System (ADS)

A method is presented for predicting the broadband noise spectra of large horizontal axis wind turbine generators. It includes contributions from such noise sources as the inflow turbulence to the rotor, the interactions between the turbulent boundary layers on the blade surfaces with their trailing edges and the wake due to a blunt trailing edge. The method is partly empirical and is based on acoustic measurements of large wind turbines and airfoil models. The predicted frequency spectra are compared with measured data from several machines including the MOD-OA, the MOD-2, the WTS-4 and the U.S. Wind-power Inc. machine. Also included is a broadband noise prediction for the proposed MOD-5B. The significance of the effects of machine size, power output, trailing edge bluntness and distance to the receiver is illustrated. Good agreement is obtained between the predicted and measured far field noise spectra.

Grosveld, F. W.

1984-10-01

93

Measurement and prediction of broadband noise from large horizontal axis wind turbine generators  

NASA Astrophysics Data System (ADS)

A method is presented for predicting the broadband noise spectra of large wind turbine generators. It includes contributions from such noise sources as the inflow turbulence to the rotor, the interactions between the turbulent boundary layers on the blade surfaces with their trailing edges and the wake due to a blunt trailing edge. The method is partly empirical and is based on acoustic measurements of large wind turbines and airfoil models. Spectra are predicted for several large machines including the proposed MOD-5B. Measured data are presented for the MOD-2, the WTS-4, the MOD-OA, and the U.S. Windpower Inc. machines. Good agreement is shown between the predicted and measured far field noise spectra.

Grosveld, F. W.; Shepherd, K. P.; Hubbard, H. H.

1995-05-01

94

The MOD-OA 200 kilowatt wind turbine generator design and analysis report  

NASA Technical Reports Server (NTRS)

The project requirements, approach, system description, design requirements, design, analysis, system tests, installation safety considerations, failure modes and effects analysis, data acquisition, and initial performance for the MOD-OA 200 kw wind turbine generator are discussed. The components, the rotor, driven train, nacelle equipment, yaw drive mechanism and brake, tower, foundation, electrical system, and control systems are presented. The rotor includes the blades, hub and pitch change mechanism. The drive train includes the low speed shaft, speed increaser, high speed shaft, and rotor brake. The electrical system includes the generator, switchgear, transformer, and utility connection. The control systems are the blade pitch, yaw, and generator control, and the safety system. Manual, automatic, and remote control and Dynamic loads and fatigue are analyzed.

Andersen, T. S.; Bodenschatz, C. A.; Eggers, A. G.; Hughes, P. S.; Lampe, R. F.; Lipner, M. H.; Schornhorst, J. R.

1980-01-01

95

Pinson C2E wind turbine generator failure analysis and corrective design modification  

NASA Astrophysics Data System (ADS)

On December 4, 1978 wind speeds at the Rocky Flats Small Wind Systems Test Center reached 42 m/s. Two failures were observed on the Pinson C2E wind turbine generator during a routine inspection of all wind machines following this windstorm. One failure was fatigue cracks which formed on plates welded to the rotor shaft. The second failure was a number of cracks in the skin of all three blades. Although the possibility exists that the high winds of that data contributed to these failures, no conclusive data exist substantiating this theory. In fact, the C2E's feathering mechanism functioned normally during the windstorm, thereby controlling rotor overspeed, a potential cause of damage.

Carr, M. J.; Grotsky, V. K.; Sexton, J.

1980-03-01

96

Measurement and prediction of broadband noise from large horizontal axis wind turbine generators  

NASA Technical Reports Server (NTRS)

A method is presented for predicting the broadband noise spectra of large wind turbine generators. It includes contributions from such noise sources as the inflow turbulence to the rotor, the interactions between the turbulent boundary layers on the blade surfaces with their trailing edges and the wake due to a blunt trailing edge. The method is partly empirical and is based on acoustic measurements of large wind turbines and airfoil models. Spectra are predicted for several large machines including the proposed MOD-5B. Measured data are presented for the MOD-2, the WTS-4, the MOD-OA, and the U.S. Windpower Inc. machines. Good agreement is shown between the predicted and measured far field noise spectra.

Grosveld, F. W.; Shepherd, K. P.; Hubbard, H. H.

1995-01-01

97

Short term hydroelectric power system scheduling with wind turbine generators using the multi-pass iteration particle swarm optimization approach  

Microsoft Academic Search

This paper uses multi-pass iteration particle swarm optimization (MIPSO) to solve short term hydroelectric generation scheduling of a power system with wind turbine generators. MIPSO is a new algorithm for solving nonlinear optimal scheduling problems. A new index called iteration best (IB) is incorporated into particle swarm optimization (PSO) to improve solution quality. The concept of multi-pass dynamic programming is

Tsung-Ying Lee

2008-01-01

98

Synchronization of the ERDA-NASA 100 LkW wind turbine generator with large utility networks  

NASA Technical Reports Server (NTRS)

The synchronizing of a wind turbine generator against an infinite bus under random conditions is studied. With a digital computer, complete solutions for rotor speed, generator power angle, electromagnetic torque, wind turbine torque, wind turbine blade pitch angle, and armature current are obtained and presented by graphs.

Hwang, H. H.; Gilbert, L. J.

1977-01-01

99

State Space Averaging Modeling and Analysis of Disturbance Injection Method of MPPT for Small Wind Turbine Generating Systems  

Microsoft Academic Search

Based on a configuration with low cost and high reliability, disturbance injection method is employed to achieve the maximum power point tracking (MPPT) for the small wind turbine generating systems(SWTGS) in this paper. State space averaging method is used to model the whole system, and its nonlinear and linearization model are given. The choosing principle of two crucial parameters of

Shengtie Wang; Zhiyuan Qi; Tore Undeland

2009-01-01

100

Benefit Evaluation of Wind Turbine Generators in Wind Farms Using Capacity-Factor Analysis and Economic-Cost Methods  

Microsoft Academic Search

Due to the recent price spike of the international oil and the concern of global warming, the development and deployment of renewable energy become one of the most important energy policies around the globe. Currently, there are different capacities and hub heights for commercial wind turbine generators (WTGs). To fully capture wind energy, different wind farms (WFs) should select adequate

Li Wang; Tai-Her Yeh; We-Jen Lee; Zhe Chen

2009-01-01

101

Mod-5A wind turbine generator program design report. Volume 2: Conceptual and preliminary design, book 2  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind tunnel generator is documented. There are four volumes. In Volume 2, book 2 the requirements and criteria for the design are presented. The development tests, which determined or characterized many of the materials and components of the wind turbine generator, are described.

1984-01-01

102

MOD-0A 200 kW wind turbine generator design and analysis report  

NASA Astrophysics Data System (ADS)

The design, analysis, and initial performance of the MOD-OA 200 kW wind turbine generator at Clayton, NM is documented. The MOD-OA was designed and built to obtain operation and performance data and experience in utility environments. The project requirements, approach, system description, design requirements, design, analysis, system tests, installation, safety considerations, failure modes and effects analysis, data acquisition, and initial performance for the wind turbine are discussed. The design and analysis of the rotor, drive train, nacelle equipment, yaw drive mechanism and brake, tower, foundation, electricl system, and control systems are presented. The rotor includes the blades, hub, and pitch change mechanism. The drive train includes the low speed shaft, speed increaser, high speed shaft, and rotor brake. The electrical system includes the generator, switchgear, transformer, and utility connection. The control systems are the blade pitch, yaw, and generator control, and the safety system. Manual, automatic, and remote control are discussed. Systems analyses on dynamic loads and fatigue are presented.

Anderson, T. S.; Bodenschatz, C. A.; Eggers, A. G.; Hughes, P. S.; Lampe, R. F.; Lipner, M. H.; Schornhorst, J. R.

1980-08-01

103

Measured effects of wind turbine generation at the Block Island Power Company  

NASA Technical Reports Server (NTRS)

Data measurements made on the NASA MOD-OA 200-kw wind-turbine generator (WTG) installed on a utility grid form the basis for an overall performance analysis. Fuel displacement/-savings, dynamic interactions, and WTG excitation (reactive-power) control effects are studied. Continuous recording of a large number of electrical and mechanical variables on FM magnetic tape permit evaluation and correlation of phenomena over a bandwidth of at least 20 Hz. Because the wind-power penetration reached peaks of 60 percent, the impact of wind fluctuation and wind-turbine/diesel-utility interaction is evaluated in a worst-case scenario. The speed-governor dynamics of the diesel units exhibited an underdamped response, and the utility operation procedures were not altered to optimize overall WTG/utility performance. Primary findings over the data collection period are: a calculated 6.7-percent reduction in fuel consumption while generating 11 percent of the total electrical energy; acceptable system voltage and frequency fluctuations with WTG connected; and applicability of WTG excitation schemes using voltage, power, or VARS as the controlled variable.

Wilreker, V. F.; Smith, R. F.; Stiller, P. H.; Scot, G. W.; Shaltens, R. K.

1984-01-01

104

Wind turbine generator interaction with diesel generators on an isolated power system  

NASA Technical Reports Server (NTRS)

The results of a dynamic interaction investigation to characterize any disturbances caused by interfacing the Mod 0A wind turbine (150 kW configuration) with the Block Island utility diesel generator grid are reported. The tests were run when only two diesel generators were on line, and attention was given to power, frequency, and voltage time profiles. The interconnected system was examined in the start-up and synchronization phase, normal shutdown and cut-out of the wind turbine, during fixed pitch generation, and during variable pitch operation. Governors were installed on the diesel generators to accommodate the presence of wind-derived electricity. The blade pitch control was set to maintain power at 150 kW or below. Power and voltage transients were insignificant during start-up and shutdown, and frequency aberrations were within the range caused by load fluctuations. It is concluded that wind turbine generation can be successfully implemented by an isolated utility, even with a significant penetration to the total grid output.

Scott, G. W.; Wilreker, V. F.; Shaltens, R. K.

1983-01-01

105

Conceptual design of a fixed-pitch wind turbine generator system rated at 400 kilowatts  

NASA Technical Reports Server (NTRS)

The design and cost aspects of a fixed pitch, 400 kW Wind Turbine Generator (WTG) concept are presented. Improvements in reliability and cost reductions were achieved with fixed pitch operation and by incorporating recent advances in WTG technology. The specifications for this WTG concept were as follows: (1) A fixed pitch, continuous wooden rotor was to be provided by the Gougeon Bros. Co. (2) An 8 leg hyperboloid tower that showed promise as a low cost structure was to be used. (3) Only commercially available components and parts that could be easily fabricated were to be considered. (4) Design features deemed desirable based on recent NASA research efforts were to be incorporated. Detailed costs and weight estimates were prepared for the second machine and a wind farm of 12 WTG's. The calculated cost of energy for the fixed pitch, twelve unit windfarm is 11.5 cents/kW hr not including the cost of land and access roads. The study shows feasibility of fixed pitch, intermediate power WTG operation.

Pintz, A.; Kasuba, R.; Spring, J.

1984-01-01

106

MOD-0A 200 kW wind turbine generator design and analysis report  

NASA Technical Reports Server (NTRS)

The design, analysis, and initial performance of the MOD-OA 200 kW wind turbine generator at Clayton, NM is documented. The MOD-OA was designed and built to obtain operation and performance data and experience in utility environments. The project requirements, approach, system description, design requirements, design, analysis, system tests, installation, safety considerations, failure modes and effects analysis, data acquisition, and initial performance for the wind turbine are discussed. The design and analysis of the rotor, drive train, nacelle equipment, yaw drive mechanism and brake, tower, foundation, electricl system, and control systems are presented. The rotor includes the blades, hub, and pitch change mechanism. The drive train includes the low speed shaft, speed increaser, high speed shaft, and rotor brake. The electrical system includes the generator, switchgear, transformer, and utility connection. The control systems are the blade pitch, yaw, and generator control, and the safety system. Manual, automatic, and remote control are discussed. Systems analyses on dynamic loads and fatigue are presented.

Anderson, T. S.; Bodenschatz, C. A.; Eggers, A. G.; Hughes, P. S.; Lampe, R. F.; Lipner, M. H.; Schornhorst, J. R.

1980-01-01

107

Wind Turbine Generator System Acoustic Noise Test Report for the Gaia Wind 11kW Wind Turbine  

Microsoft Academic Search

This report details the acoustic noise test conducted on the Gaia-Wind 11-kW wind turbine at the National Wind Technology Center. The test turbine is a two- bladed, downwind wind turbine with a rated power of 11 kW. The test turbine was tested in accordance with the International Electrotechnical Commission standard, IEC 61400-11 Ed 2.1 2006-11 Wind Turbine Generator Systems --

Huskey

2011-01-01

108

Energy saving of a prototype fishing boat using a small wind turbine generator: Practical installation and measured results  

Microsoft Academic Search

This paper presents field-measurement results of a commercial 400-W wind turbine generator (WTG) installed on a prototype fishing boat to achieve a preliminary study on energy saving of the diesel engine in the fishing boat. The Darrieus-type WTG consisting of three blades made of stainless, a coreless permanent-magnet generator (PMG), and a maximum-power point-tracking (MPPT) controller is employed in this

Li Wang; Shiang-Shong Chen; Chen-Yuan Wei; Kuo-Hua Wang; Jun-De Lee; Cheng-Ching Huang; Wei-Jen Lee

2009-01-01

109

Installation of a 400-W wind turbine generator on a commercial fishing boat to achieve energy saving  

Microsoft Academic Search

This paper presents field-measurement results of a small 400-W wind turbine generator (WTG) installed on a commercial 9.8-ton fishing boat to achieve the goal of energy saving. The Darrieus-type WTG consisting of three stainless blades, a coreless permanent-magnet generator (PMG), and a maximum-power-point-tracking controller is employed in this study. The output of the wind PMG is connected to the battery

Li Wang; Shiang-Shong Chen; Guang-Zhe Zheng; Zhi-Rong Lu; Chia-Tien Hsiung; Cheng-Ching Huang

2010-01-01

110

Wind Turbine Generator System Acoustic Noise Test Report for the Gaia Wind 11-kW Wind Turbine  

SciTech Connect

This report details the acoustic noise test conducted on the Gaia-Wind 11-kW wind turbine at the National Wind Technology Center. The test turbine is a two- bladed, downwind wind turbine with a rated power of 11 kW. The test turbine was tested in accordance with the International Electrotechnical Commission standard, IEC 61400-11 Ed 2.1 2006-11 Wind Turbine Generator Systems -- Part 11 Acoustic Noise Measurement Techniques.

Huskey, A.

2011-11-01

111

Optimal Operation Planning of Wind Farm Installed BESS Using Wind Power Forecast Data of Wind Turbine Generators Considering Forecast Error  

NASA Astrophysics Data System (ADS)

In order to solve the problems of global warming and depletion of energy resource, renewable energy systems such as wind generation are getting attention. However, wind power fluctuates due to variation of wind speed, and it is difficult to perfectly forecast wind power. This paper describes a method to use power forecast data of wind turbine generators considering wind power forecast error for optimal operation. The purpose in this paper is to smooth the output power fluctuation of a wind farm and to obtain more beneficial electrical power for selling.

Ogimi, Kazuki; Kamiyama, Shota; Palmer, Michael; Yona, Atsushi; Senju, Tomonobu; Funabashi, Toshihisa

2013-06-01

112

A Frequency Control Method by Wind Turbine Generator/Battery using Load Estimation in Isolated Power System  

NASA Astrophysics Data System (ADS)

This paper presents a frequency control method by a coordinated control of a wind turbine generator (WTG) and a battery energy storage system (BESS) using load estimation in an isolated power system. The load variation is assumed as a disturbance to the power system and can be estimated by using a disturbance observer. For the load estimation, H? control theory and parameter identification are applied to achieve robust control performance. Each output power command of the WTG and the BESS is determined by using the estimated load. Low frequency component in the load variation is reduced by the WTG with pitch angle control, while high frequency component in the load variation is reduced by the BESS with charge/discharge operation, respectively. In addition to the frequency control, a capacity reduction technique for BESS is proposed. The effectiveness of the proposed method is verified by numerical simulations.

Uehara, Akie; Asato, Bungo; Yona, Atsushi; Urasaki, Naomitsu; Senjyu, Tomonobu; Funabashi, Toshihisa

113

Response measurements for two building structures excited by noise from a large horizontal axis wind turbine generator  

NASA Astrophysics Data System (ADS)

Window and wall acceleration measurements and interior noise measurements ere made for two different building structures during excitation by noise from the WTS-4 horizontal axis wind turbine generator operating in a normal power generation mode. With turbine noise input pulses resulted in acceleration pulses for the wall and window elements of the two tests buildings. Response spectra suggest that natural vibration modes of the structures are excited. Responses of a house trailer were substantially greater than those for a building of sturdier construction. Peak acceleration values correlate well with similar data for houses excited by flyover noise from commercial and military airplanes and helicopters, and sonic booms from supersonic aircraft. Interior noise spectra have peaks at frequencies corresponding to structural vibration modes and room standing waves; and the levels for particular frequencies and locations can be higher than the outside levels.

Hubbard, H. H.; Shepherd, K. P.

1984-11-01

114

Response measurements for two building structures excited by noise from a large horizontal axis wind turbine generator  

NASA Technical Reports Server (NTRS)

Window and wall acceleration measurements and interior noise measurements ere made for two different building structures during excitation by noise from the WTS-4 horizontal axis wind turbine generator operating in a normal power generation mode. With turbine noise input pulses resulted in acceleration pulses for the wall and window elements of the two tests buildings. Response spectra suggest that natural vibration modes of the structures are excited. Responses of a house trailer were substantially greater than those for a building of sturdier construction. Peak acceleration values correlate well with similar data for houses excited by flyover noise from commercial and military airplanes and helicopters, and sonic booms from supersonic aircraft. Interior noise spectra have peaks at frequencies corresponding to structural vibration modes and room standing waves; and the levels for particular frequencies and locations can be higher than the outside levels.

Hubbard, H. H.; Shepherd, K. P.

1984-01-01

115

Control system design for the MOD-5A 7.3 mW wind turbine generator  

NASA Technical Reports Server (NTRS)

This paper provides descriptions of the requirements analysis, hardware development and software development phases of the Control System design for the MOD-5A 7.3 mW Wind Turbine Generator. The system, designed by General Electric Company, Advanced Energy Programs Department, under contract DEN 3-153 with NASA Lewis Research Center and DOE, provides real time regulation of rotor speed by control of both generator torque and rotor torque. A variable speed generator system is used to provide both airgap torque control and reactive power control. The wind rotor is designed with segmented ailerons which are positioned to control blade torque. The central component of the control system, selected early in the design process, is a programmable controller used for sequencing, alarm monitoring, communication, and real time control. Development of requirements for use of aileron controlled blades and a variable speed generator required an analytical simulation that combined drivetrain, tower and blade elastic modes with wind disturbances and control behavior. An orderly two phase plan was used for controller software development. A microcomputer based turbine simulator was used to facilitate hardware and software integration and test.

Barton, Robert S.; Hosp, Theodore J.; Schanzenbach, George P.

1995-01-01

116

A 200-kW wind turbine generator conceptual design study  

NASA Technical Reports Server (NTRS)

A conceptual design study was conducted to define a 200 kW wind turbine power system configuration for remote applications. The goal was to attain an energy cost of 1 to 2 cents per kilowatt-hour at a 14-mph site (mean average wind velocity at an altitude of 30 ft.) The costs of the Clayton, New Mexico, Mod-OA (200-kW) were used to identify the components, subsystems, and other factors that were high in cost and thus candidates for cost reduction. Efforts devoted to developing component and subsystem concepts and ideas resulted in a machine concept that is considerably simpler, lighter in weight, and lower in cost than the present Mod-OA wind turbines. In this report are described the various innovations that contributed to the lower cost and lighter weight design as well as the method used to calculate the cost of energy.

1979-01-01

117

Wind Turbine Generator System Duration Test Report for the ARE 442 Wind Turbine  

SciTech Connect

This test is being conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, four turbines are being tested at the NWTC as a part of this project. Duration testing is one of up to 5 tests that may be performed on the turbines, including power performance, safety and function, noise, and power quality tests. The results of the testing provide manufacturers with reports that may be used for small wind turbine certification. The test equipment includes a grid connected ARE 442 wind turbine mounted on a 30.5 meter (100 ft) lattice tower manufactured by Abundant Renewable Energy. The system was installed by the NWTC Site Operations group with guidance and assistance from Abundant Renewable Energy.

van Dam, J.; Baker, D.; Jager, D.

2010-05-01

118

NREL Controllable Grid Interface for Testing MW-Scale Wind Turbine Generators (Poster)  

SciTech Connect

In order to understand the behavior of wind turbines experiencing grid disturbances, it is necessary to perform a series of tests and accurate transient simulation studies. The latest edition of the IEC 61400-21 standard describes methods for such tests that include low voltage ride-through (LVRT), active power set-point control, ramp rate limitations, and reactive power capability tests. The IEC methods are being widely adopted on both national and international levels by wind turbine manufacturers, certification authorities, and utilities. On-site testing of wind turbines might be expensive and time consuming since it requires both test equipment transportation and personnel presence in sometimes remote locations for significant periods of time because such tests need to be conducted at certain wind speed and grid conditions. Changes in turbine control software or design modifications may require redoing of all tests. Significant cost and test-time reduction can be achieved if these tests are conducted in controlled laboratory environments that replicate grid disturbances and simulation of wind turbine interactions with power systems. Such testing capability does not exist in the United States today. An initiative by NREL to design and construct a 7-MVA grid simulator to operate with the existing 2.5 MW and new upcoming 5-MW dynamometer facilities will fulfill this role and bring many potential benefits to the U.S. wind industry with the ultimate goal of reducing wind energy integration costs.

McDade, M.; Gevorgian, V.; Wallen, R.; Erdman, W.

2013-04-01

119

Large wind turbine generators  

NASA Technical Reports Server (NTRS)

The development associated with large wind turbine systems is briefly described. The scope of this activity includes the development of several large wind turbines ranging in size from 100 kW to several megawatt levels. A description of the wind turbine systems, their programmatic status and a summary of their potential costs is included.

Thomas, R. L.; Donovon, R. M.

1978-01-01

120

Superconducting wind turbine generators  

NASA Astrophysics Data System (ADS)

We have examined the potential of 10 MW superconducting direct drive generators to enter the European offshore wind power market and estimated that the production of about 1200 superconducting turbines until 2030 would correspond to 10% of the EU offshore market. The expected properties of future offshore turbines of 8 and 10 MW have been determined from an up-scaling of an existing 5 MW turbine and the necessary properties of the superconducting drive train are discussed. We have found that the absence of the gear box is the main benefit and the reduced weight and size is secondary. However, the main challenge of the superconducting direct drive technology is to prove that the reliability is superior to the alternative drive trains based on gearboxes or permanent magnets. A strategy of successive testing of superconducting direct drive trains in real wind turbines of 10 kW, 100 kW, 1 MW and 10 MW is suggested to secure the accumulation of reliability experience. Finally, the quantities of high temperature superconducting tape needed for a 10 kW and an extreme high field 10 MW generator are found to be 7.5 km and 1500 km, respectively. A more realistic estimate is 200-300 km of tape per 10 MW generator and it is concluded that the present production capacity of coated conductors must be increased by a factor of 36 by 2020, resulting in a ten times lower price of the tape in order to reach a realistic price level for the superconducting drive train.

Abrahamsen, A. B.; Mijatovic, N.; Seiler, E.; Zirngibl, T.; Træholt, C.; Nørgård, P. B.; Pedersen, N. F.; Andersen, N. H.; Østergård, J.

2010-03-01

121

Experience and assessment of the DOE-NASA Mod-1 2000-Kilowatt wind turbine generator at Boone, North Carolina  

NASA Technical Reports Server (NTRS)

The Mod 1 program objectives are defined. The Mod 1 wind turbine is described. In addition to the steel blade operated on the wind turbine, a composite blade was designed and manufactured. During the early phase of the manufacturing cycle of Mod 1A configuration was designed that identified concepts such as partial span control, a soft tower, and upwind teetered rotors that were incorporated in second and third generation industry designs. The Mod 1 electrical system performed as designed, with voltage flicker characteristics within acceptable utility limits. Power output versus wind speed equaled or exceeded design predictions. The wind turbine control system was operated successfully at the site and remotely from the utility dispatcher's office. During wind turbine operations, television interference was experienced by the local residents. As a consequence, operations were restricted. Although not implemented, two potential solutions were identified. In addition to television interference, a few local residents complained bout objectionable sound, particularly the 'thump' as the blade passed behind the tower. To eliminate objections, the sound generation level was reduced by 10 dB by reducing the rotor speed from 35 rpm to 23 rpm. Bolts in the drive train fractured. A solution was identified but not implemented. The public reaction toward the Mod 1 wind turbine program was overwhelmingly favorable.

Collins, J. L.; Shaltenc, R. K.; Poor, R. H.; Barton, R. S.

1982-01-01

122

Wind Turbine Generator System Duration Test Report for the Gaia-Wind 11 kW Wind Turbine  

SciTech Connect

This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, five turbines are being tested at the National Renewable Energy Laboratory's (NRELs) National Wind Technology Center (NWTC) as a part of this project. Duration testing is one of up to five tests that may be performed on the turbines, including power performance, safety and function, noise, and power quality tests. The results of the testing will provide the manufacturers with reports that may be used for small wind turbine certification. The test equipment includes a Gaia-Wind 11 kW wind turbine mounted on an 18 m monopole tower. Gaia-Wind Ltd. manufactured the turbine in Denmark, although the company is based in Scotland. The system was installed by the NWTC Site Operations group with guidance and assistance from Gaia-Wind.

Huskey, A.; Bowen, A.; Jager, D.

2010-09-01

123

Wind turbine generator with improved operating subassemblies  

DOEpatents

A wind turbine includes a yaw spring return assembly to return the nacelle from a position to which it has been rotated by yawing forces, thus preventing excessive twisting of the power cables and control cables. It also includes negative coning restrainers to limit the bending of the flexible arms of the rotor towards the tower, and stop means on the rotor shaft to orient the blades in a vertical position during periods when the unit is upwind when the wind commences. A pendulum pitch control mechanism is improved by orienting the pivot axis for the pendulum arm at an angle to the longitudinal axis of its support arm, and excessive creep is of the synthetic resin flexible beam support for the blades is prevented by a restraining cable which limits the extent of pivoting of the pendulum during normal operation but which will permit further pivoting under abnormal conditions to cause the rotor to stall.

Cheney, Jr., Marvin C. (24 Stonepost Rd., Glastonbury, CT 06033)

1985-01-01

124

An experimental 100 kilowatt wind turbine generator  

NASA Technical Reports Server (NTRS)

Experimental generator consists of two blades mounted on 100 foot tower, driving transmission train and electric generator mounted on top of tower. Machine generates 100 kW of electricity at wind speeds from 18 to 60 miles per hour. Yaw control mechanism automatically orients machine into wind.

Thomas, R. L.; Puthoff, R. L.; Savino, J. M.; Johnson, W. R.

1975-01-01

125

Wind turbine generators using superconducting coils and bulks  

NASA Astrophysics Data System (ADS)

Wind power generation has been expected as a promising clean energy source in the world. Recently, generation capacity produced by wind power generators has been growing with increasing size of windmills. However, huge nacelles result in extreme load for towers supporting them. We have focused on a wind power generator using superconducting wires and superconducting bulks to solve the problem. Large currents may flow through superconducting wires with zero DC resistance. Superconducting bulks are magnetic shielding materials. These enable reduction of size and weight of nacelles. In addition, large generators using these materials can generate an output power of 10 MW with very large power densities. This paper describes calculation of generated magnetic field and power generation characteristics using three-dimensional finite element method (FEM) analysis of the generators using high temperature superconducting coils and bulks.

Ohsaki, H.; Terao, Y.; Sekino, M.

2010-06-01

126

Removable bearing arrangement for a wind turbine generator  

DOEpatents

A wind generator having removable change-out bearings includes a rotor and a stator, locking bolts configured to lock the rotor and stator, a removable bearing sub-assembly having at least one shrunk-on bearing installed, and removable mounting bolts configured to engage the bearing sub-assembly and to allow the removable bearing sub-assembly to be removed when the removable mounting bolts are removed.

Bagepalli, Bharat Sampathkumaran; Jansen, Patrick Lee; Gadre, Aniruddha Dattatraya

2010-06-15

127

Laboratory implementation of variable-speed wind turbine generation  

SciTech Connect

To improve the performance of wind turbines, various control schemes such as variable speed operation have been proposed. Testing of these control algorithms on a full scale system is very expensive. To test these systems simulation, we developed programs and small scale laboratory experiments. We used this system to verify a control method that attempts to keep the turbine operating at its peak power coefficient. Both the simulations and the experiments verified the principle of operation of this control scheme.

Zinger, D.S. [Northern Illinois University, DeKalb, IL (United States)] [Northern Illinois University, DeKalb, IL (United States); Miller, A.A. [Univ. of Idaho, Moscow, ID (United States)] [Univ. of Idaho, Moscow, ID (United States); Muljadi, E.; Butterfield, C.P.; Robinson, M.C. [National Renewable Energy Lab., Golden, CO (United States)] [National Renewable Energy Lab., Golden, CO (United States)

1996-07-01

128

Method for changing removable bearing for a wind turbine generator  

DOEpatents

A wind generator having removable change-out bearings includes a rotor and a stator, locking bolts configured to lock the rotor and stator, a removable bearing sub-assembly having at least one shrunk-on bearing installed, and removable mounting bolts configured to engage the bearing sub-assembly and to allow the removable bearing sub-assembly to be removed when the removable mounting bolts are removed.

Bagepalli, Bharat Sampathkumaran (Niskayuna, NY); Jansen, Patrick Lee (Scotia, NY); Gadre, Aniruddha Dattatraya (Rexford, NY)

2008-04-22

129

Pitch-controlled variable-speed wind turbine generation  

Microsoft Academic Search

This paper covers the operation of variable-speed wind turbines with pitch control. The system the authors considered is controlled to generate maximum energy while minimizing loads. The maximization of energy was only carried out on a static basis and only drive train loads were considered as a constraint. In low to medium wind speeds, the generator and the power converter

Eduard Muljadi; C. P. Butterfield

2001-01-01

130

Control systems of wind turbine generators: an Italian experience  

Microsoft Academic Search

The control system of a wind turbine plays a crucial role in determining its dynamic performances in all the possible operating conditions, along the generator start-up and shut-down maneuvers, as well as during the production phase. In particular the regulation of blade pitch and nacelle alignment to the wind direction permit to maximize the power production or to limit the

S. Corsi; M. Pozzi

2003-01-01

131

Lightning accommodation systems for wind turbine generator safety  

NASA Technical Reports Server (NTRS)

The wind turbine safety program identifies the naturally occurring lightning phenomenon as a hazard with the potential to cause loss of program objectives, injure personnel, damage system instrumentation, structure or support equipment and facilities. Several candidate methods of lightning accommodation for each blade were designed, analyzed, and tested by submitting sample blade sections to simulated lightning. Lightning accommodation systems for composite blades were individually developed. Their effectiveness was evaluated by submitting the systems to simulated lightning strikes. The test data were analyzed and system designs were reviewed on the basis of the analysis. This activity is directed at defining design and procedural constraints, requirements for safety devices and warning methods, special procedures, protective equipment and personnel training.

Bankaitis, H.

1981-01-01

132

Control of wind turbine generators connected to power systems  

NASA Technical Reports Server (NTRS)

A unique simulation model based on a Mode-O wind turbine is developed for simulating both speed and power control. An analytical representation for a wind turbine that employs blade pitch angle feedback control is presented, and a mathematical model is formulated. For Mode-O serving as a practical case study, results of a computer simulation of the model as applied to the problems of synchronization and dynamic stability are provided. It is shown that the speed and output of a wind turbine can be satisfactorily controlled within reasonable limits by employing the existing blade pitch control system under specified conditions. For power control, an additional excitation control is required so that the terminal voltage, output power factor, and armature current can be held within narrow limits. As a result, the variation of torque angle is limited even if speed control is not implemented simultaneously with power control. Design features of the ERDA/NASA 100-kW Mode-O wind turbine are included.

Hwang, H. H.; Mozeico, H. V.; Gilbert, L. J.

1978-01-01

133

Wind Turbine Generator Physics: Gear Boxes and Blades  

NSDL National Science Digital Library

This module, produced by the Wind Technician TV project from Highland Community College, introduces students to the gear boxes and blades of wind turbines. The module consists of four lessons: gear box solids and liquids, blades- force analysis, gear box heat transfer and gearbox force and stress analysis. The lessons include audio and animated visuals as well as interactive simulations. Each lesson includes a PDF document with the lesson's text and images. Skill check activities are also included.

134

A new wind turbine generation system based on matrix converter  

Microsoft Academic Search

At a given wind velocity, the mechanical power available from a wind turbine is a function of its shaft speed. To maximize the power captured from the wind, the shaft speed has to be controlled. In low-cost wind energy conversion systems, the turbine shaft speed is not regulated and a squirrel-cage induction generator is used to convert the turbine mechanical

S. M. Barakati; M. Kazerani; X. Chen

2005-01-01

135

Wind turbine generator rotor blade concepts with low cost potential  

NASA Technical Reports Server (NTRS)

Four processed for producing blades are examined. Two use filament winding techniques and two involve filling a mold or form to produce all or part of a blade. The processes are described and a comparison is made of cost, material properties, design and free vibration characteristics. Conclusions are made regarding the feasibility of each process to produce low cost, structurally adequate blades.

Sullivan, T. L.; Cahill, T. P.; Griffee, D. G., Jr.; Gewehr, H. W.

1977-01-01

136

Query-Focused Summarization: Summarization is Easy,  

E-print Network

://www-nlpir.nist.gov/projects/duc/duc2005/ #12;DUC Query example "Identify and describe types of organized crime that crosses borders · Rank passages by their similarity to the manual summaries #12;Summarization Methods KLSum Biased Lex

Wintner, Shuly

137

Summarizing Lecture 1 Summarizing Lecture 2  

E-print Network

Units and Dimensions Significant Figures Orders of magnitude and Estimation Scaling Math stuff! Akarsh Units and Dimensions Significant Figures Orders of magnitude and Estimation Scaling Math stuff! Akarsh Summarizing Lecture 2 Units and Dimensions Significant Figures Orders of magnitude and Estimation Scaling Math

Raizen, Mark G.

138

Summarizing Email Threads  

Microsoft Academic Search

Summarizing threads of email is different from summarizing other types of written communi- cation as it has an inherent dialog structure. We present initial research which shows that sen- tence extraction techniques can work for email threads as well, but profit from email-specific features. In addition, the presentation of the summary should take into account the dialogic structure of email

Owen Rambow; Lokesh Shrestha; John Chen; Chirsty Lauridsen

139

Summarizing Expository Texts  

ERIC Educational Resources Information Center

Purpose: This article reviews the literature on students' developing skills in summarizing expository texts and describes strategies for evaluating students' expository summaries. Evaluation outcomes are presented for a professional development project aimed at helping teachers develop new techniques for teaching summarization. Methods: Strategies…

Westby, Carol; Culatta, Barbara; Lawrence, Barbara; Hall-Kenyon, Kendra

2010-01-01

140

Medical volume image summarization  

Microsoft Academic Search

Medical volume images are large in size. They cannot be efficiently transmitted and visualized as candidates for medical image retrieval and relevance feedback. On the other hand, 2D images that are small in size and rich in 3D details can be efficiently transmitted and visualized as candidates. This paper presents an algorithm that summarizes the 3D details in a volume

Feng Ding; Hao Li; Yuan Cheng; W. K. Leow

2009-01-01

141

Movie review mining and summarization  

E-print Network

With the flourish of the Web, online review is becoming a more and more useful and important information resource for people. As a result, automatic review mining and summarization has become a hot research topic recently. Different from traditional text summarization, review mining and summarization aims at extracting the features on which the reviewers express their opinions and determining whether the opinions are positive or negative. In this paper, we focus on a specific domain – movie review. A multi-knowledge based approach is proposed, which integrates WordNet, statistical analysis and movie knowledge. The experimental results show the effectiveness of the proposed approach in movie review mining and summarization.

Li Zhuang; Feng Jing; Xiao-yan Zhu

2006-01-01

142

Learning Summarization by Using Similarities.  

ERIC Educational Resources Information Center

Discusses a research project aimed at designing a computer-based system to help students learn to summarize French texts by using a method called Case-Based Reasoning (CBR). Such a system uses previous, similar situations to make a new summary by reusing and adapting the same summarization rules. The rationale underlying the learning of text…

Capus, Laurence; Tourigny, Nicole

1998-01-01

143

Movie review mining and summarization  

Microsoft Academic Search

With the ?ourish of the Web, online review is becoming a more and more useful and important information resource for people. As a result, automatic review mining and sum- marizing has become a hot research topic recently. Difier- ent from traditional text summarization, review mining and summarizing aims at extracting the features on which the re- viewers express their opinions

Li Zhuang; Feng Jing; Xiao-Yan Zhu

2006-01-01

144

Automated Text Summarization in SUMMARIST  

Microsoft Academic Search

SUMMARIST is an attempt to create a robust automated text summarization system, based on the 'equation': summarization = topic identification + interpretation + generation. Each of these stages contains several independent modules, many of them trained on large corpora of text. We describe the system's architecture and provide details of some of its modules.

Eduard Hovy; Chin-Yew Lin

1999-01-01

145

Summarization of Diagrams in Documents  

Microsoft Academic Search

Documents are composed of text and graphics. There is substantial work on automated text summarization but almost none on the automated summarization of graphics. Four examples of diagrams from the scientific literature are used to indicate the problems and possible solutions: a table of images, a flow chart, a set of x,y data plots, and a block diagram. Manual summaries

Robert P. Futrelle

1999-01-01

146

Summarizing can improve metacomprehension accuracy  

Microsoft Academic Search

In two experiments, it was examined whether the accuracy of comprehension monitoring (metacomprehension accuracy) was improved by summarizing texts. College students read texts and then some wrote a summary of each text (either immediately after reading or after a delay—the delay between reading and summarizing was filled by the reading of the remaining texts), whereas others did not (the control

Keith W Thiede; Mary C. M Anderson

2003-01-01

147

Summarizing and Synthesizing: What's the Difference?  

NSDL National Science Digital Library

For teachers in K-Grade 5 classrooms, the author of this article reviews the reading comprehension strategies known as Summarizing and Synthesizing. She provides links to web sites and to a book that will provide more background information and lessons. The article appears in the free, online magazine Beyond Weather and the Water Cycle, which focuses on the seven essential principles of climate science.

Jessica Fries-Gaither

148

Wind turbine generator application places unique demands on tower design and materials  

NASA Technical Reports Server (NTRS)

The most relevant contractual tower design requirements and goal for the Mod-1 tower are related to steel truss tower construction, cost-effective state-of-the-art design, a design life of 30 years, and maximum wind conditions of 120 mph at 30 feet elevation. The Mod-1 tower design approach was an iterative process. Static design loads were calculated and member sizes and overall geometry chosen with the use of finite element computer techniques. Initial tower dynamic characteristics were then combined with the dynamic properties of the other wind turbine components, and a series of complex dynamic computer programs were run to establish a dynamic load set and then a second tower design.

Kita, J. P.

1978-01-01

149

Noise radiation characteristics of the Westinghouse WWG-0600 (600kW) wind turbine generator  

NASA Technical Reports Server (NTRS)

Acoustic data are presented from five different WWG-0600 machines for the wind speed range 6.7 to 13.4 m/s, for a power output range of 51 to 600 kW and for upwind, downwind and crosswind locations. Both broadband and narrowband data are presented and are compared with calculations and with similar data from other machines. Predicted broadband spectra are in good agreement with measurements at high power and underestimate them at low power. Discrete frequency rotational noise components are present in all measurements and are believed due to terrain induced wind gradients. Predictions are in general agreement with measurements upwind and downwind but underestimate them in the crosswind direction.

Shepherd, Kevin P.; Hubbard, Harvey H.

1989-01-01

150

National Renewable Energy Laboratory program on lightning risk and wind turbine generator protection  

SciTech Connect

This paper will describe the NREL program for addressing lightning protection for wind turbines. A test program will begin this summer at the Central and South West Services Inc. (CSW) wind farm near Fort Davis, Texas, to assess lightning risk, the frequency of lightning strikes on wind turbines compared to risk assessment predictions, and the effectiveness of some protection techniques. A Web page will be assembled to provide resources for designers and operators and feedback for issues as they arise. Also, a database of lightning events (and corresponding damage) will be collected to assist in maturing the understanding of wind turbine lightning protection.

Muljadi, E. [National Renewable Energy Lab., Golden, CO (United States)] [National Renewable Energy Lab., Golden, CO (United States); McNiff, B. [McNiff Light Industry, Blue Hill, ME (United States)] [McNiff Light Industry, Blue Hill, ME (United States)

1997-09-01

151

Drive Train Normal Modes Analysis for the ERDA/NASA 100-Kilowatt Wind Turbine Generator  

NASA Technical Reports Server (NTRS)

Natural frequencies, as a function of power were determined using a finite element model. Operating conditions investigated were operation with a resistive electrical load and operation synchronized to an electrical utility grid. The influence of certain drive train components on frequencies and mode shapes is shown. An approximate method for obtaining drive train natural frequencies is presented.

Sullivan, T. L.; Miller, D. R.; Spera, D. A.

1977-01-01

152

MOD-OA 200 kW wind turbine generator engineeringing  

NASA Technical Reports Server (NTRS)

Engineering drawings and the detailed mechanical and electrical design of a horizontal-axis wind turbine designed for DOE at the NASA Lewis Research Center and installed in Clayton, New Mexico are discussed. The drawings show the hub, pitch change mechanism, drive train, nacelle equipment, yaw drive system, tower, foundation, electrical power systems, and the control and safety systems.

Andersen, T. S.; Bodenschatz, C. A.; Eggers, A. G.; Hughes, P. S.; Lampe, R. F.

1980-01-01

153

Wind-turbine-generator rotor-blade concepts with low-cost potential  

NASA Technical Reports Server (NTRS)

Four processes for producing blades are examined. Two use filament winding techniques and two involve filling a mold or form to produce all or part of a blade. The processes are described and a comparison is made of costs, material properties, designs and free vibration characteristics. Conclusions are made regarding the feasibility of each process to produce low-cost, structurally adequate blades.

Sullivan, T. L.; Cahill, T. P.; Griffee, D. G., Jr.; Gewehr, H. W.

1978-01-01

154

Wind turbine generators having wind assisted cooling systems and cooling methods  

DOEpatents

A wind generator includes: a nacelle; a hub carried by the nacelle and including at least a pair of wind turbine blades; and an electricity producing generator including a stator and a rotor carried by the nacelle. The rotor is connected to the hub and rotatable in response to wind acting on the blades to rotate the rotor relative to the stator to generate electricity. A cooling system is carried by the nacelle and includes at least one ambient air inlet port opening through a surface of the nacelle downstream of the hub and blades, and a duct for flowing air from the inlet port in a generally upstream direction toward the hub and in cooling relation to the stator.

Bagepalli, Bharat (Niskayuna, NY); Barnes, Gary R. (Delanson, NY); Gadre, Aniruddha D. (Rexford, NY); Jansen, Patrick L. (Scotia, NY); Bouchard, Jr., Charles G. (Schenectady, NY); Jarczynski, Emil D. (Scotia, NY); Garg, Jivtesh (Cambridge, MA)

2008-09-23

155

Wind Turbine Generator System Acoustic Noise Test Report for the ARE 442 Wind Turbine  

Microsoft Academic Search

This test was conducted on the ARE 442 as part of the U.S. Department of Energy's (DOE's) Independent Testing project. This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, five turbines are being tested at the National Wind Technology Center (NWTC) as a part of this

A. Huskey; J. van Dam

2010-01-01

156

Wind Turbine Generator System Duration Test Report for the Mariah Power Windspire Wind Turbine  

SciTech Connect

This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, five turbines are being tested at the National Wind Technology Center (NWTC) as a part of the first round of this project. Duration testing is one of up to five tests that may be performed on the turbines. Other tests include power performance, safety and function, noise, and power quality tests. NWTC testing results provide manufacturers with reports that may be used to meet part of small wind turbine certification requirements. This duration test report focuses on the Mariah Power Windspire wind turbine.

Huskey, A.; Bowen, A.; Jager, D.

2010-05-01

157

Evaluation of human exposure to the noise from large wind turbine generators  

NASA Technical Reports Server (NTRS)

The human perception of a nuisance level of noise was quantified in tests and attempts were made to define criteria for acceptable sound levels from wind turbines. Comparisons were made between the sound necessary to cause building vibration, which occurred near the Mod-1 wind turbine, and human perception thresholds for building noise and building vibration. Thresholds were measured for both broadband and impulsive noise, with the finding that noise in the 500-2000 Hz region, and impulses with a 1 Hz fundamental, were most noticeable. Curves were developed for matching a receiver location with expected acoustic output from a machine to determine if the sound levels were offensive. In any case, further data from operating machines are required before definitive criteria can be established.

Shepherd, K. P.; Grosveld, F. W.; Stephens, D. G.

1983-01-01

158

Wind Turbine Generator System Duration Test Report for the Mariah Power Windspire Wind Turbine  

Microsoft Academic Search

This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, five turbines are being tested at the National Wind Technology Center (NWTC) as a part of the first round of this project. Duration testing is

A. Huskey; A. Bowen; D. Jager

2010-01-01

159

Wind Turbine Generator System Duration Test Report for the ARE 442 Wind Turbine  

Microsoft Academic Search

This test is being conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, four turbines are being tested at the NWTC as a part of this project. Duration testing is one of up

J. van Dam; D. Baker; D. Jager

2010-01-01

160

Sound measurements and observations of the MOD-OA wind turbine generator  

NASA Astrophysics Data System (ADS)

Sound measurements are reported for a wind velocity of about 5 m/s and a power output of about 70 kW. Both broadband and narrowband data were obtained for a range of distances and azimuth angles from the machine. Both discrete frequency and broadband components were identified. Loading harmonics at multiples of the blade passage frequency and electrical generator harmonics at multiples of the shaft speed dominated the spectrum below 100 Hz. The 10,000 Hz peak is believed to be of mechanical origin in the nacelle and the other arises from blade aerodynamic sources. Aural detection distances of about 525 m upwind and 850 downwind were observed.

Shepherd, K. P.; Hubbard, H. H.

1982-02-01

161

Noise radiation characteristics of the Westinghouse WWG-0600 (600kW) wind turbine generator  

NASA Astrophysics Data System (ADS)

Acoustic data are presented from five different WWG-0600 machines for the wind speed range 6.7 to 13.4 m/s, for a power output range of 51 to 600 kW and for upwind, downwind and crosswind locations. Both broadband and narrowband data are presented and are compared with calculations and with similar data from other machines. Predicted broadband spectra are in good agreement with measurements at high power and underestimate them at low power. Discrete frequency rotational noise components are present in all measurements and are believed due to terrain induced wind gradients. Predictions are in general agreement with measurements upwind and downwind but underestimate them in the crosswind direction.

Shepherd, Kevin P.; Hubbard, Harvey H.

1989-07-01

162

Environmental noise characteristics of the MOD5-B (3.2 MW) wind turbine generator  

NASA Astrophysics Data System (ADS)

Both narrow band and broad band acoustic data were obtained for the MOD5-B wind turbine for a range of wind speeds from 5.8 to 14.3 m/s; for a range of power outputs from 300 to 3100 kW; and for various azimuth angles and distances. Comparisons are made with those of other large machines and with predictions by available methods. The highest levels occur at the lower frequencies and generally decrease as the frequency increases. Low frequency rotational noise components were more intense than expected for an upwind machine and are believed to result from localized wind gradients across the rotor disk due to upwind terrain features. Predicted broad band spectra follow the general trends of the data but tend to underestimate the levels in the frequency range where the turbulent boundary layer-trailing edge interaction noise is expected to be significant.

Shepherd, Kevin P.; Hubbard, Harvey H.

1989-03-01

163

On Impedance Spectroscopy Contribution to Failure Diagnosis in Wind Turbine Generators  

E-print Network

-fed induction generator, failure diagnosis, impedance spectroscopy. Nomenclature WT = Wind Turbine; DFIG rotor end- rings and harmonic degrading. In particular, DFIG-based WT failure diagnosis seems to become

Boyer, Edmond

164

Design and fabrication of composite blades for the Mod-1 wind turbine generator  

NASA Technical Reports Server (NTRS)

The design, tooling, fabrication, quality control, and testing phases carried out to date, as well as testing still planned are described. Differences from the 150 foot blade which were introduced for cost and manufacturing improvement purposes are discussed as well as the lightning protection system installed in the blades. Actual costs and manhours expended for Blade No. 2 are provided as a base, along with a projection of costs for the blade in production.

Batesole, W. R.; Gunsallus, C. T.

1981-01-01

165

Application of Magnetic Energy Recovery Switch (MERS) to Improve Output Power of Wind Turbine Generators  

NASA Astrophysics Data System (ADS)

The experimental results of an innovative power conversion technology using magnetic energy recovery switch (MERS) in a wind turbine system with a synchronous generator to improve the output power and the efficiency are presented. The MERS can compensate for the reactance voltage of the generator. The output voltage of the system increases and the excitation power of the generator can be significantly reduced. The data indicate a great potential of the new power conversion technology to make the actual wind turbine system compact and to improve the efficiency.

Takaku, Taku; Homma, Gen; Isobe, Takanori; Kato, Shuhei; Igarashi, Seiki; Uchida, Yoshiyuki; Shimada, Ryuichi

166

The Performance and Wind Tunnel Test of Aerofoils for Small Wind Turbine Generating Systems  

Microsoft Academic Search

The small scale wind turbines have been used as the stand alone power source for years. Particularly these days, there is an increasing demand for the small wind turbines, of the output below 1kW, as monuments and educational materials. It is recommended that wind turbines of a diameter under 1.0m must be the low blade tip speed ratio type, owing

Hideki Tokuyama; Izumi Ushiyama; Kazuichi Seki

2003-01-01

167

Design Study of Coated Conductor Direct Drive Wind Turbine Generator for Small Scale Demonstration  

NASA Astrophysics Data System (ADS)

We have investigated the properties of a superconducting direct drive generator suitable for demonstration in a small scale 11 kW wind turbine. The engineering current density of the superconducting ?eld windings is based on properties of coated conductors wound into coils holding of the order 68 meters of tape. The active mass of the generators has been investigated as function of the number of poles and a 4 pole generator is suggested as a feasible starting point of an in-?eld demonstration of the system reliability. An active mass of m = 421 kg and a usage of 3.45 km of tape will be needed to realize such a generator with a peak ?ux density in the airgap of B0 = 1.5 T.

Abrahamsen, Asger B.; Jensen, Bogi B.

168

Control and Interfacing of a Grid-Connected Small-Scale Wind Turbine Generator  

Microsoft Academic Search

An ac\\/dc\\/ac power converter is an important device used to extract power from variable speed permanent magnet wind generators and feed it into the grid. This paper describes how these converters incorporate maximum power point tracking based on its power feed to the grid at different wind speeds. Using the perma- nent magnet generator voltage, grid current, and grid voltage

Haining Wang; Chem Nayar; Jianhui Su; Ming Ding

2011-01-01

169

Hybrid Electro-Mechanical Simulation Tool for Wind Turbine Generators: Preprint  

SciTech Connect

This paper describes the use of MATLAB/Simulink to simulate the electrical and grid-related aspects of a WTG and the FAST aero-elastic wind turbine code to simulate the aerodynamic and mechanical aspects of the WTG. The combination of the two enables studies involving both electrical and mechanical aspects of the WTG.

Singh, M.; Muljadi, E.; Jonkman, J.

2013-05-01

170

Detection of low frequency impulsive noise from large wind turbine generators  

NASA Technical Reports Server (NTRS)

The thresholds of detection of low frequency, impulsive wind turbine sounds in the presence of background noise were examined. Seven wind turbine sounds, six of which were synthesized, were used in conjunction with three background noise conditions; quiet, 35, and 45 dB(A). The results indicate that thresholds of detection are predictable based on assumed characteristics of the auditory system. The synthesized wind turbine sounds were found to adequately represent a real recording.

Shepherd, K. P.

1985-01-01

171

Opportunities for ice storage to provide ancillary services to power grids incorporating wind turbine generation  

NASA Astrophysics Data System (ADS)

Power generation using wind turbines increases the electrical system balancing, regulation and ramp rate requirements due to the minute to minute variability in wind speed and the difficulty in accurately forecasting wind speeds. The addition of thermal energy storage, such as ice storage, to a building's space cooling equipment increases the operational flexibility of the equipment by allowing the owner to choose when the chiller is run. The ability of the building owner to increase the power demand from the chiller (e.g. make ice) or to decrease the power demand (e.g. melt ice) to provide electrical system ancillary services was evaluated.

Finley, Christopher

172

Physical modeling of wind turbine generators in a small scale analog system  

E-print Network

This project represents the physical modeling and experimental test of a Doubly-fed Induction Machine (DFIM), in order to substantially analyze the characteristic behaviors of wind turbines and its use in the micro-grid ...

Wang, Xuntuo

2014-01-01

173

The application of hydraulics in the 2,000 kW wind turbine generator  

NASA Technical Reports Server (NTRS)

A 2000 kW turbine generator using hydraulic power in two of its control systems is being built under the management of NASA Lewis Research Center. The hydraulic systems providing the control torques and forces for the yaw and blade pitch control systems are discussed. The yaw-drive-system hydraulic supply provides the power for positioning the nacelle so that the rotary axis is kept in line with the direction of the prevailing wind, as well as pressure to the yaw and high speed shaft brakes. The pitch-change-mechanism hydraulic system provides the actuation to the pitch change mechanism and permits feathering of the blades during an emergency situation. It operates in conjunction with the overall windmill computer system, with the feather control permitting slewing control flow to pass from the servo valve to the actuators without restriction.

Onufreiczuk, S.

1978-01-01

174

Sound measurements and observations of the MOD-OA wind turbine generator  

NASA Technical Reports Server (NTRS)

Sound measurements are reported for a wind velocity of about 5 m/s and a power output of about 70 kW. Both broadband and narrowband data were obtained for a range of distances and azimuth angles from the machine. Both discrete frequency and broadband components were identified. Loading harmonics at multiples of the blade passage frequency and electrical generator harmonics at multiples of the shaft speed dominated the spectrum below 100 Hz. The 10,000 Hz peak is believed to be of mechanical origin in the nacelle and the other arises from blade aerodynamic sources. Aural detection distances of about 525 m upwind and 850 downwind were observed.

Shepherd, K. P.; Hubbard, H. H.

1982-01-01

175

Fiberglass composite blades for the 2 MW Mod-1 wind turbine generator  

NASA Technical Reports Server (NTRS)

In mid-1979, NASA contracted with Kaman Aerospace Corporation for the design, manufacture, and ground testing of two 100 foot composite rotor blades intended for operation on the Mod-1 wind turbine. The Mod-1 blades have been completed and are currently stored at the Kaman facility. The design, tooling, fabrication, and testing phases which have been carried out to date, as well as testing still planned are described. Discussed are differences from the 150 foot blade which were introduced for cost and manufacturing improvement purposes. Also included is a description of the lightning protection system installed in the blades, and its development program. Actual costs and manhours expended for Blade No. 2 are provided as a base, along with a projection of costs for the blade in production. Finally, cost drivers are identified relative to future designs.

Batesole, W. R.

1982-01-01

176

Universal Power Line Manager for Wind Turbine Generator Connected with a Microgrid  

Microsoft Academic Search

A wind power plant meets many power quality issues when it is connected with a microgrid, because the voltage and frequency are not stable in a microgrid. This article envisages a new power quality conditioner to regulate the supply frequency, control the power flow, minimize current harmonics, and regulate the voltage for a fixed-speed induction generator type wind generator. The

P. Jeno Paul; I. Jacob Raglend; T. Ruban Deva Prakash

2012-01-01

177

Special tests for the power electronic converters of wind turbine generators  

Microsoft Academic Search

Power electronic converters for wind turbines are characterized by high specific power density and high reliability. Special tests for such converters are performed in order to determine the power loss and thermal models, which are dependent of the load profile and converter structure. Two multi-level medium-voltage source converter topologies, of the 3L-ANPC-VSC and 3L-HB-VSC type, are considered in the paper.

Lars Helle; Osman S. Senturk; Remus Teodorescu

2011-01-01

178

Simulation for Wind Turbine Generators -- With FAST and MATLAB-Simulink Modules  

SciTech Connect

This report presents the work done to develop generator and gearbox models in the Matrix Laboratory (MATLAB) environment and couple them to the National Renewable Energy Laboratory's Fatigue, Aerodynamics, Structures, and Turbulence (FAST) program. The goal of this project was to interface the superior aerodynamic and mechanical models of FAST to the excellent electrical generator models found in various Simulink libraries and applications. The scope was limited to Type 1, Type 2, and Type 3 generators and fairly basic gear-train models. Future work will include models of Type 4 generators and more-advanced gear-train models with increased degrees of freedom. As described in this study, implementation of the developed drivetrain model enables the software tool to be used in many ways. Several case studies are presented as examples of the many types of studies that can be performed using this tool.

Singh, M.; Muljadi, E.; Jonkman, J.; Gevorgian, V.; Girsang, I.; Dhupia, J.

2014-04-01

179

Environmental noise characteristics of the MOD5-B (3.2 MW) wind turbine generator  

NASA Technical Reports Server (NTRS)

Both narrow band and broad band acoustic data were obtained for the MOD5-B wind turbine for a range of wind speeds from 5.8 to 14.3 m/s; for a range of power outputs from 300 to 3100 kW; and for various azimuth angles and distances. Comparisons are made with those of other large machines and with predictions by available methods. The highest levels occur at the lower frequencies and generally decrease as the frequency increases. Low frequency rotational noise components were more intense than expected for an upwind machine and are believed to result from localized wind gradients across the rotor disk due to upwind terrain features. Predicted broad band spectra follow the general trends of the data but tend to underestimate the levels in the frequency range where the turbulent boundary layer-trailing edge interaction noise is expected to be significant.

Shepherd, Kevin P.; Hubbard, Harvey H.

1989-01-01

180

Analysis of a fuel cell micro-grid with a small-scale wind turbine generator  

Microsoft Academic Search

If electric power is supplied using an independent micro-grid connected to renewable energy, it can flexibly match the energy demand characteristics of a local area. And an independent micro-grid is expected to be effective in cutting greenhouse gas discharge and energy costs, as well as in eliminating the need for an emergency power supply system. Since the output of renewable

Shin’ya Obara

2007-01-01

181

Hydrogen energy storage for a permanent magnet wind turbine generator based autonomous hybrid power system  

Microsoft Academic Search

The Performance of a novel hybrid Remote Area Power Supply (RAPS) system consisting of a Permanent Magnet Synchronous Generator (PMSG), fuel cell system, electrolyser and synchronous condenser is investigated in this paper. The fuel cell system is used to provide power during under-generation scenarios whereas the electrolyser absorbs excess power during over-generation conditions. A synchronous condenser is incorpo- rated into

Nishad Mendis; Saad Sayeef; Kashem M. Muttaqi; Sarath Perera

2011-01-01

182

LANGUAGE MODELS FOR HIERARCHICAL SUMMARIZATION  

E-print Network

LANGUAGE MODELS FOR HIERARCHICAL SUMMARIZATION A Dissertation Presented by DAWN J. LAWRIE Submitted for the degree of DOCTOR OF PHILOSOPHY September 2003 Computer Science #12;c Copyright by Dawn J. Lawrie 2003 by DAWN J. LAWRIE Approved as to style and content by: W. Bruce Croft, Chair James Allan, Member Donald

Lawrie, Dawn J.

183

Video summarization with supervised learning  

Microsoft Academic Search

We present a video summarization technique based on supervised learning. Within a class of videos of similar nature, user provides the desired summaries for a subset of videos. Based on this supervised information, the summaries for other videos in the same class are generated. We derive frame-transitional features and subsequently represent each frame transition as a state. We then formulate

Jayanta Basak; Varun Luthra; Santanu Chaudhury

2008-01-01

184

Evaluation of Extractive Voicemail Summarization  

NSDL National Science Digital Library

This interesting paper outlines a framework for automatic summarization of voicemail messages and delivery as compact text messages. The proposed system, developed at the University of Sheffield, incorporates speech recognition technology and summary word extraction. An overview of the feature selection process is especially interesting, as it briefly describes how pitch, word duration, and pauses in the voicemail message are used to obtain a compressed subset of the most important features. A number of experiments were performed to determine the system's accuracy and usability, and the results are presented in the paper.

Koumpis, Konstantinos

185

Design considerations for small wind energy conversion and storage systems  

Microsoft Academic Search

A small wind turbine generator system capable of providing electricity to an all electric residence is considered. A host of major design considerations are exaimined. These include the characteristics of a wind turbine generator, the nature of the electric load demand, the available wind resources, siting considerations, and other related socioeconomic factors. The energy storage subsystem is singled out for

G. C. Chang

1981-01-01

186

Teaching Students to Summarize: Applying Textlinguistics.  

ERIC Educational Resources Information Center

The findings from research on written and oral summarization are discussed under three headings: summarizers' strategies, improving summarizers' performance, and the assessment of summary quality. Objective measures of summary quality used by researchers are described, and ways these measures could be adapted for use in higher education assessment…

Sherrard, Carol

1989-01-01

187

Observation planning for efficient environment information summarization  

Microsoft Academic Search

Mapping is an activity of making a useful descrip- tion of an environment. Not only geometric information such as free space but also object placements are important if the map is used for human-robot communication. We call such a map making environment information summarization because how to summarize may change depending on the purpose of the map. Environment information summarization

Hiroaki Masuzawa; Jun Miura

2009-01-01

188

Summarization of Documentaries Kezban Demirtas1  

E-print Network

news stories from the video and provide a summary for each story by using lexical chain analysis@ceng.metu.edu.tr Abstract. Video summarization algorithms present condensed versions of a full length video by identifying the most significant parts of the video. In this paper, we propose an automatic video summarization method

Cicekli, Ilyas

189

The Tipster Summac Text Summarization Evaluation  

Microsoft Academic Search

The TIPSTER Text Summarization Evaluation (SUMMAC) has established definitively that automatic text summarization is very effective in relevance assessment tasks. Summaries as short as 17% of full text length sped up decision-making by almost a factor of 2 with no statistically significant degradation in F-score accuracy. SUMMAC has also introduced a new intrinsic method for automated evaluation of informative summaries.

Inderjeet Mani; David House; Gary Klein; Lynette Hirschman; Therese Firmin; Beth Sundheim

1999-01-01

190

Summarization Evaluation Methods: Experiments and Analysis  

E-print Network

Summarization Evaluation Methods: Experiments and Analysis Hongyan Jing Dept. of Computer Science@cs.bgu.ac.il) Abstract Two methods are used for evaluation of summarization systems: an evaluation of generated summaries such as informa­ tion retrieval. We carried out two large experiments to study the two evaluation methods. Our

Elhadad, Michael

191

3/5/2014 TinyMicro Wind Turbines Generate Electricity| New Energyand Fuel http://newenergyandfuel.com/http:/newenergyandfuel/com/2014/01/16/tiny-micro-wind-turbines-generate-electricity/ 1/12  

E-print Network

Photosynthesis Solar Panels Space Based Solar Thermal Solar Wind Power Storage Batteries Super Capacitors Thermal Off Topic Plans Politics Power Units Fuel Cells Hybrid Electric Piezoelectrics Solar Artificial Chemical The Weekend Link Lists Zero Point Energy Archives March 2014 February 2014 January 2014 December

Chiao, Jung-Chih

192

Summarization Instruction: Effects on Foreign Language Comprehension and Summarization of Expository Texts.  

ERIC Educational Resources Information Center

Reports the effects of metacognitive strategy training in summarization on the ability of foreign language learners to comprehend and summarize expository texts. Notes that the improved summary performance was maintained three weeks after instruction ended. Suggests that explicit instruction in the rules of summarization is an effective tool for…

Cordero-Ponce, Wanda L.

2000-01-01

193

Wind turbine generator interaction with conventional diesel generators on Block Island, Rhode Island. Volume 2: Data analysis  

NASA Astrophysics Data System (ADS)

Assessing the performance of a MOD-OA horizontal axis wind turbine connected to an isolated diesel utility, a comprehensive data measurement program was conducted on the Block Island Power Company installation on Block Island, Rhode Island. The detailed results of that program focusing on three principal areas of (1) fuel displacement (savings), (2) dynamic interaction between the diesel utility and the wind turbine, (3) effects of three models of wind turbine reactive power control are presented. The approximate two month duration of the data acquisition program conducted in the winter months (February into April 1982) revealed performance during periods of highest wind energy penetration and hence severity of operation. Even under such conditions fuel savings were significant resulting in a fuel reduction of 6.7% while the MOD-OA was generating 10.7% of the total electrical energy. Also, electrical disturbance and interactive effects were of an acceptable level.

Wilreker, V. F.; Stiller, P. H.; Scott, G. W.; Kruse, V. J.; Smith, R. F.

1984-02-01

194

Wind turbine/generator set having a stator cooling system located between stator frame and active coils  

DOEpatents

A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle via a bearing assembly. The wind rotor hub includes an opening having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

2012-11-13

195

Wind turbine generator interaction with conventional diesel generators on Block Island, Rhode Island. Volume 2: Data analysis  

NASA Technical Reports Server (NTRS)

Assessing the performance of a MOD-OA horizontal axis wind turbine connected to an isolated diesel utility, a comprehensive data measurement program was conducted on the Block Island Power Company installation on Block Island, Rhode Island. The detailed results of that program focusing on three principal areas of (1) fuel displacement (savings), (2) dynamic interaction between the diesel utility and the wind turbine, (3) effects of three models of wind turbine reactive power control are presented. The approximate two month duration of the data acquisition program conducted in the winter months (February into April 1982) revealed performance during periods of highest wind energy penetration and hence severity of operation. Even under such conditions fuel savings were significant resulting in a fuel reduction of 6.7% while the MOD-OA was generating 10.7% of the total electrical energy. Also, electrical disturbance and interactive effects were of an acceptable level.

Wilreker, V. F.; Stiller, P. H.; Scott, G. W.; Kruse, V. J.; Smith, R. F.

1984-01-01

196

The effects of blade mounted vortex generators on the noise from a MOD-2 wind turbine generator  

NASA Technical Reports Server (NTRS)

Comparison noise measurements were made for a standard MOD-2 machine and for one modified to include an array of vortex generators on the suction sides of the blades near maximum thickness. Data were obtained for comparable azimuth angles and distances for a range of wind velocities of 7.6 to 10.3 m/s and for power outputs of 1.4 MW. Since the observed differences are small it is concluded that the inclusion of vortex generators on this machine will result in no significant increase in environmental impact due to noise.

Hubbard, H. H.; Shepherd, K. P.

1984-01-01

197

Wind Turbine Generator System Power Quality Test Report for the Gaia Wind 11kW Wind Turbine  

Microsoft Academic Search

This report details the power quality test on the Gaia Wind 11-kW Wind Turbine as part of the U.S. Department of Energy's Independent Testing Project. In total five turbines are being tested as part of the project. Power quality testing is one of up to five test that may be performed on the turbines including power performance, safety and function,

A. Curtis; V. Gevorgian

2011-01-01

198

Wind Turbine Generator System Power Performance Test Report for the Gaia-Wind 11-kW Wind Turbine  

SciTech Connect

This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. It is a power performance test that the National Renewable Energy Laboratory (NREL) conducted on the Gaia-Wind 11-kW small wind turbine.

Huskey, A.; Bowen, A.; Jager, D.

2009-12-01

199

Wind Turbine Generator System Duration Test Report for the Gaia-Wind 11 kW Wind Turbine  

Microsoft Academic Search

This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, five turbines are being tested at the National Renewable Energy Laboratory's (NRELs) National Wind Technology Center (NWTC) as a part of

A. Huskey; A. Bowen; D. Jager

2010-01-01

200

Wind Turbine Generator System Power Quality Test Report for the Gaia Wind 11-kW Wind Turbine  

SciTech Connect

This report details the power quality test on the Gaia Wind 11-kW Wind Turbine as part of the U.S. Department of Energy's Independent Testing Project. In total five turbines are being tested as part of the project. Power quality testing is one of up to five test that may be performed on the turbines including power performance, safety and function, noise, and duration tests. The results of the testing provide manufacturers with reports that may be used for small wind turbine certification.

Curtis, A.; Gevorgian, V.

2011-07-01

201

The effects of blade mounted vortex generators on the noise from a MOD-2 wind turbine generator  

NASA Astrophysics Data System (ADS)

Comparison noise measurements were made for a standard MOD-2 machine and for one modified to include an array of vortex generators on the suction sides of the blades near maximum thickness. Data were obtained for comparable azimuth angles and distances for a range of wind velocities of 7.6 to 10.3 m/s and for power outputs of 1.4 MW. Since the observed differences are small it is concluded that the inclusion of vortex generators on this machine will result in no significant increase in environmental impact due to noise.

Hubbard, H. H.; Shepherd, K. P.

1984-02-01

202

Impact of Increased Penetration of DFIG-Based Wind Turbine Generators on Transient and Small Signal Stability of Power Systems  

Microsoft Academic Search

The targeted and current development of wind energy in various countries around the world reveals that wind power is the fastest growing power generation technology. Among the several wind generation technologies, variable speed wind turbines utilizing doubly fed induction generators (DFIGs) are gaining momentum in the power industry. With the increase in penetration of these wind turbines, the power system

Durga Gautam; Vijay Vittal; Terry Harbour

2009-01-01

203

Strategies for Refining IEC 61400-2: Wind Turbine Generator Systems - Part 2: Safety of Small Wind Turbines: Preprint  

Microsoft Academic Search

This paper provides a status of the changes currently being made by IEC Maintenance Team 02 (MT02) to the existing IEC 61400-2 ''Safety of small wind turbines.'' In relation to the work done by IEC MT02, work has been done by NREL and Windward Engineering under the DOE\\/NREL Small Wind Turbine (SWT) Project. Aeroelastic models were built and measurements taken

J. J. D. van Dam; T. L. Forsyth; A. C. Hansen

2001-01-01

204

Comparative study on fault responses of synchronous generators and wind turbine generators using transient stability index based on  

E-print Network

Wales, Australian Defence Force Academy, ACT 2600, Australia a r t i c l e i n f o Article history: Synchronous generator Squirrel cage induction generator Doubly fed induction generator Transient energy generators, such as squirrel cage induction generators and doubly fed induction generators. Ã? 2013 Elsevier

Pota, Himanshu Roy

205

Multimedia Knowledge Integration, Summarization And Evaluation  

Microsoft Academic Search

This paper presents new methods for automatically integrating, summarizing and evaluating multimedia knowledge. These are essential for multimedia applications to efficiently and coherently deal with multimedia knowledge at different abstraction levels such as perceptual and semantic knowledge (e.g., image clusters and word senses, respectively). The proposed methods include automatic techniques (1) for interrelating the concepts in the multimedia knowledge using

Ana B. Benitez; Shih-fu Chang

2002-01-01

206

Summarization as the base for text assessment  

NASA Astrophysics Data System (ADS)

We present a model that apply shallow text summarization as a cheap (in resources needed) process for Automatic (machine based) free text answer Assessment (AA). The evaluation of the proposed method induces the inference that the Conventional Assessment (CA, man made assessment of free text answers) does not have an obvious mechanical replacement. However, this is a research challenge.

Karanikolas, Nikitas N.

2015-02-01

207

Task-Driven Dynamic Text Summarization  

ERIC Educational Resources Information Center

The objective of this work is to examine the efficacy of natural language processing (NLP) in summarizing bibliographic text for multiple purposes. Researchers have noted the accelerating growth of bibliographic databases. Information seekers using traditional information retrieval techniques when searching large bibliographic databases are often…

Workman, Terri Elizabeth

2011-01-01

208

Automatic soccer video analysis and summarization  

Microsoft Academic Search

We propose a fully automatic and computationally ecient framework for analysis and summariza-tion of soccer videos using cinematic and object-based features. The proposed framework includes somenovel low-level soccer video processing algorithms, such as dominant color region detection, robust shotboundary detection, and shot classification, as well as some higher-level algorithms for goal detection,referee detection, and penalty-box detection. The system can output

Ahmet Ekin; A. Murat Tekalp; Rajiv Mehrotra

2003-01-01

209

A scalable summarization system using robust nlp  

Microsoft Academic Search

Abstract We describe a scalable summarization,sys- tem which takes advantage,of robust NLP technology,such as corpus-based statlsh- cal NLP techmques, information extrac- tmn and readily available on-hne resources The system attempts to compensate,for the bottlenecks of traditional frequency-based, knowledge-based,or discourse-based sum- manzatlon,approaches,by uhhzlng features derived by these robust techniques,Pre- hrmnary evaluation results are reported, and the multi-dimensional summary,viewer is described

C. Aone; M. E. Okurowski; J. Gorlinsky; B. Larsen

1997-01-01

210

Method for gathering and summarizing internet information  

DOEpatents

A computer method of gathering and summarizing large amounts of information comprises collecting information from a plurality of information sources (14, 51) according to respective maps (52) of the information sources (14), converting the collected information from a storage format to XML-language documents (26, 53) and storing the XML-language documents in a storage medium, searching for documents (55) according to a search query (13) having at least one term and identifying the documents (26) found in the search, and displaying the documents as nodes (33) of a tree structure (32) having links (34) and nodes (33) so as to indicate similarity of the documents to each other.

Potok, Thomas E.; Elmore, Mark Thomas; Reed, Joel Wesley; Treadwell, Jim N.; Samatova, Nagiza Faridovna

2010-04-06

211

System for gathering and summarizing internet information  

DOEpatents

A computer method of gathering and summarizing large amounts of information comprises collecting information from a plurality of information sources (14, 51) according to respective maps (52) of the information sources (14), converting the collected information from a storage format to XML-language documents (26, 53) and storing the XML-language documents in a storage medium, searching for documents (55) according to a search query (13) having at least one term and identifying the documents (26) found in the search, and displaying the documents as nodes (33) of a tree structure (32) having links (34) and nodes (33) so as to indicate similarity of the documents to each other.

Potok, Thomas E.; Elmore, Mark Thomas; Reed, Joel Wesley; Treadwell, Jim N.; Samatova, Nagiza Faridovna

2006-07-04

212

Method for gathering and summarizing internet information  

DOEpatents

A computer method of gathering and summarizing large amounts of information comprises collecting information from a plurality of information sources (14, 51) according to respective maps (52) of the information sources (14), converting the collected information from a storage format to XML-language documents (26, 53) and storing the XML-language documents in a storage medium, searching for documents (55) according to a search query (13) having at least one term and identifying the documents (26) found in the search, and displaying the documents as nodes (33) of a tree structure (32) having links (34) and nodes (33) so as to indicate similarity of the documents to each other.

Potok, Thomas E. (Oak Ridge, TN); Elmore, Mark Thomas (Oak Ridge, TN); Reed, Joel Wesley (Knoxville, TN); Treadwell, Jim N. (Louisville, TN); Samatova, Nagiza Faridovna (Oak Ridge, TN)

2008-01-01

213

Automation of summarization evaluation methods and their application to the summarization process   

E-print Network

Summarization is the process of creating a more compact textual representation of a document or a collection of documents. In view of the vast increase in electronically available information sources in the last decade, ...

Nahnsen, Thade

2011-06-30

214

Effective Replays and Summarization of Virtual Experiences  

PubMed Central

Direct replays of the experience of a user in a virtual environment are difficult for others to watch due to unnatural camera motions. We present methods for replaying and summarizing these egocentric experiences that effectively communicate the users observations while reducing unwanted camera movements. Our approach summarizes the viewpoint path as a concise sequence of viewpoints that cover the same parts of the scene. The core of our approach is a novel content dependent metric that can be used to identify similarities between viewpoints. This enables viewpoints to be grouped by similar contextual view information and provides a means to generate novel viewpoints that can encapsulate a series of views. These resulting encapsulated viewpoints are used to synthesize new camera paths that convey the content of the original viewers experience. Projecting the initial movement of the user back on the scene can be used to convey the details of their observations, and the extracted viewpoints can serve as bookmarks for control or analysis. Finally we present performance analysis along with two forms of validation to test whether the extracted viewpoints are representative of the viewers original observations and to test for the overall effectiveness of the presented replay methods. PMID:22402688

Ponto, Kevin; Kohlmann, Joe; Gleicher, Michael

2012-01-01

215

Figure-Associated Text Summarization and Evaluation  

PubMed Central

Biomedical literature incorporates millions of figures, which are a rich and important knowledge resource for biomedical researchers. Scientists need access to the figures and the knowledge they represent in order to validate research findings and to generate new hypotheses. By themselves, these figures are nearly always incomprehensible to both humans and machines and their associated texts are therefore essential for full comprehension. The associated text of a figure, however, is scattered throughout its full-text article and contains redundant information content. In this paper, we report the continued development and evaluation of several figure summarization systems, the FigSum+ systems, that automatically identify associated texts, remove redundant information, and generate a text summary for every figure in an article. Using a set of 94 annotated figures selected from 19 different journals, we conducted an intrinsic evaluation of FigSum+. We evaluate the performance by precision, recall, F1, and ROUGE scores. The best FigSum+ system is based on an unsupervised method, achieving F1 score of 0.66 and ROUGE-1 score of 0.97. The annotated data is available at figshare.com (http://figshare.com/articles/Figure_Associated_Text_Summarization_and_Evaluation/858903). PMID:25643357

Polepalli Ramesh, Balaji; Sethi, Ricky J.; Yu, Hong

2015-01-01

216

Summarization of an online medical encyclopedia.  

PubMed

We explore a knowledge-rich (abstraction) approach to summarization and apply it to multiple documents from an online medical encyclopedia. A semantic processor functions as the source interpreter and produces a list of predications. A transformation stage then generalizes and condenses this list, ultimately generating a conceptual condensate for a given disorder topic. We provide a preliminary evaluation of the quality of the condensates produced for a sample of four disorders. The overall precision of the disorder conceptual condensates was 87%, and the compression ratio from the base list of predications to the final condensate was 98%. The conceptual condensate could be used as input to a text generator to produce a natural language summary for a given disorder topic. PMID:15360864

Fiszman, Marcelo; Rindflesch, Thomas C; Kilicoglu, Halil

2004-01-01

217

Blind summarization: content-adaptive video summarization using time-series analysis  

NASA Astrophysics Data System (ADS)

Severe complexity constraints on consumer electronic devices motivate us to investigate general-purpose video summarization techniques that are able to apply a common hardware setup to multiple content genres. On the other hand, we know that high quality summaries can only be produced with domain-specific processing. In this paper, we present a time-series analysis based video summarization technique that provides a general core to which we are able to add small content-specific extensions for each genre. The proposed time-series analysis technique consists of unsupervised clustering of samples taken through sliding windows from the time series of features obtained from the content. We classify content into two broad categories, scripted content such as news and drama, and unscripted content such as sports and surveillance. The summarization problem then reduces to finding either finding semantic boundaries of the scripted content or detecting highlights in the unscripted content. The proposed technique is essentially an event detection technique and is thus best suited to unscripted content, however, we also find applications to scripted content. We thoroughly examine the trade-off between content-neutral and content-specific processing for effective summarization for a number of genres, and find that our core technique enables us to minimize the complexity of the content-specific processing and to postpone it to the final stage. We achieve the best results with unscripted content such as sports and surveillance video in terms of quality of summaries and minimizing content-specific processing. For other genres such as drama, we find that more content-specific processing is required. We also find that judicious choice of key audio-visual object detectors enables us to minimize the complexity of the content-specific processing while maintaining its applicability to a broad range of genres. We will present a demonstration of our proposed technique at the conference.

Divakaran, Ajay; Radhakrishnan, Regunathan; Peker, Kadir A.

2006-01-01

218

Summarization of Egocentric Moving Videos for Generating Walking Route Guidance  

E-print Network

that the proposed method is much better than a simple baseline summarization method without video analysis. KeywordsSummarization of Egocentric Moving Videos for Generating Walking Route Guidance Masaya Okamoto to summarize an ego- centric moving video (a video recorded by a moving wearable camera) for generating

Yanai, Keiji

219

An Efficient Statistical Approach for Automatic Organic Chemistry Summarization  

Microsoft Academic Search

In this paper, we propose an efficient strategy for summarizing scientific documents in Organic Chemistry that concentrates\\u000a on numerical treatments. We present its implementation named yachs (Yet Another Chemistry Summarizer) that combines a specific document pre-processing with a sentence scoring method relying\\u000a on the statistical properties of documents. We show that yachs achieves the best results among several other summarizers

Florian Boudin; Juan Manuel Torres Moreno; Patricia Velázquez-morales

2008-01-01

220

Improvement of AEP Predictions Using Diurnal CFD Modelling with Site-Specific Stability Weightings Provided from Mesoscale Simulation  

NASA Astrophysics Data System (ADS)

The Bolund measurement campaign, performed by Danish Technical University (DTU) Wind Energy Department (also known as RISØ), provided significant insight into wind flow modeling over complex terrain. In the blind comparison study several modelling solutions were submitted with the vast majority being steady-state Computational Fluid Dynamics (CFD) approaches with two equation k-epsilon turbulence closure. This approach yielded the most accurate results, and was identified as the state-of-the-art tool for wind turbine generator (WTG) micro-siting. Based on the findings from Bolund, further comparison between CFD and field measurement data has been deemed essential in order to improve simulation accuracy for turbine load and long-term Annual Energy Production (AEP) estimations. Vestas Wind Systems A/S is a major WTG original equipment manufacturer (OEM) with an installed base of over 60GW in over 70 countries accounting for 19% of the global installed base. The Vestas Performance and Diagnostic Centre (VPDC) provides online live data to more than 47GW of these turbines allowing a comprehensive comparison between modelled and real-world energy production data. In previous studies, multiple sites have been simulated with a steady neutral CFD formulation for the atmospheric surface layer (ASL), and wind resource (RSF) files have been generated as a base for long-term AEP predictions showing significant improvement over predictions performed with the industry standard linear WAsP tool. In this study, further improvements to the wind resource file generation with CFD are examined using an unsteady diurnal cycle approach with a full atmospheric boundary layer (ABL) formulation, with the unique stratifications throughout the cycle weighted according to mesoscale simulated sectorwise stability frequencies.

Hristov, Y.; Oxley, G.; Žagar, M.

2014-06-01

221

VIDEO SUMMARIZATION BY VIDEO STRUCTURE ANALYSIS AND GRAPH OPTIMIZATION  

E-print Network

VIDEO SUMMARIZATION BY VIDEO STRUCTURE ANALYSIS AND GRAPH OPTIMIZATION Shi Lu, Irwin King video summarization method that combines video structure analysis and graph optimiza- tion. First, we video structure analysis and graph op- timization. We analyze the structure of the original video, find

King, Kuo Chin Irwin

222

Automatic summarization of audio-visual soccer feeds  

Microsoft Academic Search

This paper presents a fully automatic system for soccer game summarization. The system takes audio-visual content as an input, and builds on the integration of two independent but complementary contributions (i) to identify crucial periods of the soccer game in a fully automatic way, and (ii) to summarize the soccer game as a function of individual narrative preferences of the

Fan Chen; Christophe De Vleeschouwer; Helenca Duxans Barrobes; J. Gregorio Escalada; David Conejero

2010-01-01

223

Generating Descriptions that Summarize Geospatial and Temporal Data Martin Molina  

E-print Network

devices (mobile phones, cars, etc.). The summarization of geospatial and temporal data can be usefulGenerating Descriptions that Summarize Geospatial and Temporal Data Martin Molina Department of Artificial Intelligence Universidad Politécnica de Madrid, Spain martin.molina@upm.es Amanda Stent AT&T Labs

Molina, Martín

224

Linguistic summarization of sensor data for eldercare Anna Wilbik  

E-print Network

detection, fall risk assessment, activity recognition, early illness detection, etc. can be inferred from and healthcare providers is essential. Long term trends can be most easily identified using summarized collection for an elder participant. Index Terms--Linguistic summarization, fuzzy logic, comput- ing

He, Zhihai "Henry"

225

Trainable, Scalable Summarization Using Robust NLP and Machine Learning  

Microsoft Academic Search

We describe a trainable and scalable summarization system which utilizes features derived from information retrieval, information extraction, and NLP techniques and on-line resources. The system combines these features using a trainable feature combiner learned from summary examples through a machine learning algorithm. We demonstrate system scalability by reporting results on the best combination of summarization features for different document sources.

Chinatsu Aone; Mary Ellen Okurowski; James Gorlinsky

1998-01-01

226

Video Summarization Based on User Interaction Dan R. Olsen Jr.  

E-print Network

to watch sports in less time than a game takes to play. Computing a summarization of a game depends upon, interactive television, sports 1. INTRODUCTION Recent advances in internet video technology are the precursorsVideo Summarization Based on User Interaction Dan R. Olsen Jr. Brigham Young University olsen

Olsen Jr., Dan R.

227

Efficacious Data Cube Exploration by Semantic Summarization and Compression  

E-print Network

Efficacious Data Cube Exploration by Semantic Summarization and Compression Laks V.S. Lakshmanan developed a systematic approach to achieve efficacious data cube construction and exploration by semantic summarization and compression. Our ap- proach is pivoted on a notion of quotient cube that groups together

Pei, Jian

228

Abstractive Meeting Summarization with Entailment and Fusion Yashar Mehdad  

E-print Network

Abstractive Meeting Summarization with Entailment and Fusion Yashar Mehdad Giuseppe Carenini Frank for abstractive meeting summariza- tion. We cluster sentences in the in- put into communities and build an entail, it has been observed in the context of meeting summarization that concise abstracts are generally

Carenini, Giuseppe

229

On the Application of Generic Summarization Algorithms to Music  

NASA Astrophysics Data System (ADS)

Several generic summarization algorithms were developed in the past and successfully applied in fields such as text and speech summarization. In this paper, we review and apply these algorithms to music. To evaluate this summarization's performance, we adopt an extrinsic approach: we compare a Fado Genre Classifier's performance using truncated contiguous clips against the summaries extracted with those algorithms on 2 different datasets. We show that Maximal Marginal Relevance (MMR), LexRank and Latent Semantic Analysis (LSA) all improve classification performance in both datasets used for testing.

Raposo, Francisco; Ribeiro, Ricardo; de Matos, David Martins

2015-01-01

230

Extractive summarization using complex networks and syntactic dependency  

NASA Astrophysics Data System (ADS)

The realization that statistical physics methods can be applied to analyze written texts represented as complex networks has led to several developments in natural language processing, including automatic summarization and evaluation of machine translation. Most importantly, so far only a few metrics of complex networks have been used and therefore there is ample opportunity to enhance the statistics-based methods as new measures of network topology and dynamics are created. In this paper, we employ for the first time the metrics betweenness, vulnerability and diversity to analyze written texts in Brazilian Portuguese. Using strategies based on diversity metrics, a better performance in automatic summarization is achieved in comparison to previous work employing complex networks. With an optimized method the Rouge score (an automatic evaluation method used in summarization) was 0.5089, which is the best value ever achieved for an extractive summarizer with statistical methods based on complex networks for Brazilian Portuguese. Furthermore, the diversity metric can detect keywords with high precision, which is why we believe it is suitable to produce good summaries. It is also shown that incorporating linguistic knowledge through a syntactic parser does enhance the performance of the automatic summarizers, as expected, but the increase in the Rouge score is only minor. These results reinforce the suitability of complex network methods for improving automatic summarizers in particular, and treating text in general.

Amancio, Diego R.; Nunes, Maria G. V.; Oliveira, Osvaldo N.; Costa, Luciano da F.

2012-02-01

231

Rare?Earth?Free Permanent Magnets for Electrical Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn?Bi and M?type Hexaferrite  

SciTech Connect

The research we conducted focuses on the rare-earth (RE)-free permanent magnet by modeling, simulating, and synthesizing exchange coupled two-phase (hard/soft) RE-free core-shell nano-structured magnet. The RE-free magnets are made of magnetically hard core materials (high anisotropy materials including Mn-Bi-X and M-type hexaferrite) coated by soft shell materials (high magnetization materials including Fe-Co or Co). Therefore, our research helps understand the exchange coupling conditions of the core/shell magnets, interface exchange behavior between core and shell materials, formation mechanism of core/shell structures, stability conditions of core and shell materials, etc.

Hong, Yang-Ki [University of Alabama] [University of Alabama; Haskew, Timothy [University of Alabama] [University of Alabama; Myryasov, Oleg [University of Alabama] [University of Alabama; Jin, Sungho [University of California San Diego] [University of California San Diego; Berkowitz, Ami [University of California San Diego] [University of California San Diego

2014-06-05

232

Summarization of Text Document Using Query Dependent Parsing Techniques  

NASA Astrophysics Data System (ADS)

World Wide Web is the largest source of information. Huge amount of data is present on the Web. There has been a great amount of work on query-independent summarization of documents. However, due to the success of Web search engines query-specific document summarization (query result snippets) has become an important problem. In this paper a method to create query specific summaries by identifying the most query-relevant fragments and combining them using the semantic associations within the document is discussed. In particular, first a structure is added to the documents in the preprocessing stage and converts them to document graphs. The present research work focuses on analytical study of different document clustering and summarization techniques currently the most research is focused on Query-Independent summarization. The main aim of this research work is to combine the both approaches of document clustering and query dependent summarization. This mainly includes applying different clustering algorithms on a text document. Create a weighted document graph of the resulting graph based on the keywords. And obtain the document graph to get the summary of the document. The performance of the summary using different clustering techniques will be analyzed and the optimal approach will be suggested.

Rokade, P. P.; Mrunal, Bewoor; Patil, S. H.

2010-11-01

233

Event detection and summarization in American football broadcast video  

NASA Astrophysics Data System (ADS)

We propose a framework for event detection and summary generation in football broadcast video. First, we formulate summarization as a play detection problem, with play being defined as the most basic segment of time during which the ball is being played. Then we propose both deterministic and probabilistic approaches to the detection of the plays. The detected plays are concatenated to generate a compact, time-compressed summary of the original video. Such a summary is complete in the sense that it contains every meaningful action of the underlying game, and it also servers as a much better starting point for higher-level summarization and other analyses than the original video does. Based on the summary, we also propose an audio-based hierarchical summarization method. Experimental results show the proposed methods work very well on consumer grade platforms.

Li, Baoxin; Sezan, M. Ibrahim

2001-12-01

234

Video Analytics for Indexing, Summarization and Searching of Video Archives  

SciTech Connect

This paper will be submitted to the proceedings The Eleventh IASTED International Conference on. Signal and Image Processing. Given a video or video archive how does one effectively and quickly summarize, classify, and search the information contained within the data? This paper addresses these issues by describing a process for the automated generation of a table-of-contents and keyword, topic-based index tables that can be used to catalogue, summarize, and search large amounts of video data. Having the ability to index and search the information contained within the videos, beyond just metadata tags, provides a mechanism to extract and identify "useful" content from image and video data.

Trease, Harold E.; Trease, Lynn L.

2009-08-01

235

LANGUAGE MODELS FOR HIERARCHICAL SUMMARIZATION (PROPOSAL FOR DISSERTATION)  

E-print Network

Presented by DAWN LAWRIE Submitted to the Graduate School of the University of Massachusetts Amherst #12;c Copyright by Dawn Lawrie 2001 All Rights Reserved #12;LANGUAGE MODELS FOR HIERARCHICAL SUMMARIZATION (PROPOSAL FOR DISSERTATION) A Dissertation Outline Presented by DAWN LAWRIE Approved as to style

Lawrie, Dawn J.

236

Abstraction Summarization for Managing the Biomedical Research Literature  

Microsoft Academic Search

We explore a semantic abstraction approach to automatic summarization in the biomedical domain. The approach relies on a semantic processor that functions as the source inter- preter and produces a list of predications. A transformation stage then generalizes and condenses this list, ultimately generating a conceptual condensate for a disorder input topic. The final condensate is displayed in graphical form.

Marcelo Fiszman; Thomas C. Rindflesch; Halil Kilicoglu

2004-01-01

237

Teaching Summarization Skills to Bilingual Elementary School Children.  

ERIC Educational Resources Information Center

A study was undertaken to examine the effects of teaching five writing rules on English summarization and comprehension under two conditions of reading instruction. The five summary writing rules taught included: (1) identifying unimportant statements, (2) identifying repetition of ideas in statements, (3) identifying lists of things or series of…

Amuchie, Paul M.

238

An Unsupervised Sentiment Classifier on Summarized or Full Reviews  

E-print Network

-intensive process. To simplify the task of identifying reviews expressing positive, negative, and neutral opinions users, as well as web search engine designers. To facilitate the task of identifying reviews on PS in this paper. eSummar pre-processes a review R using anaphora resolution, which identifies successive

Ng, Yiu-Kai Dennis

239

Power Mean Pyramid Scores for Summarization Evaluation Sameer Maskey  

E-print Network

Power Mean Pyramid Scores for Summarization Evaluation Sameer Maskey , Andrew Rosenberg+ IBM@cs.qc.cuny.edu Abstract We present Power Mean Pyramid Scores (PMP), an evaluation metric that extends the Pyramid popular approaches, in- cluding Pyramid Scoring [4], ROUGE [5], and F-measure [6], compare a machine

Maskey, Sameer R.

240

SUMMVL: Stata module: as summarize, but with variable labels  

Microsoft Academic Search

summvl is a simple enhancement of summarize (without detail) that includes variable labels in its output. It uses the full display linesize. For those with Stata v6 on an internet-accessible machine, install by typing .net cd http:\\/\\/www.fss.uu.nl\\/soc\\/iscore\\/stata\\/ then .net install summvl

Jeroen Weesie

1999-01-01

241

TSCAN: A Content Anatomy Approach to Temporal Topic Summarization  

Microsoft Academic Search

A topic is defined as a seminal event or activity along with all directly related events and activities. It is represented by a chronological sequence of documents published by different authors on the Internet. In this study, we define a task called topic anatomy, which summarizes and associates the core parts of a topic temporally so that readers can understand

Chien Chin Chen; Meng Chang Chen

2012-01-01

242

Image Database Summarization with the SaintEtiQ System  

Microsoft Academic Search

Inthispaper,anewapproachforthe summarization of image database is described. A linguistic description of images is flrst generated from its low level features such as color. Anoriginalsummaryprocess,called SaintEtiQ is then applied, leading to a hierarchically organized set of summaries containing parts of the database. The process relies on the use of Fuzzy Relational Thesaurus producing a generalized description of summaries.

R. Saint-Paul; G. Raschia; N. Mouaddib

2002-01-01

243

Web-page Classification through Summarization Zheng Chen2  

E-print Network

Web-page Classification through Summarization Dou Shen1 Zheng Chen2 Qiang Yang3 Hua-Jun Zeng2 Benyu Zhang2 Yuchang Lu1 Wei-Ying Ma2 1 Computer Science and Tech. Tsinghua University Beijing, P, research conducted by Chen and Dumais shows that users prefer navigating through catalogues of pre

Yang, Qiang

244

Investigation of Learners' Perceptions for Video Summarization and Recommendation  

ERIC Educational Resources Information Center

Recently, multimedia-based learning is widespread in educational settings. A number of studies investigate how to develop effective techniques to manage a huge volume of video sources, such as summarization and recommendation. However, few studies examine how these techniques affect learners' perceptions in multimedia learning systems. This…

Yang, Jie Chi; Chen, Sherry Y.

2012-01-01

245

VOG: Summarizing and Understanding Large Graphs Danai Koutra  

E-print Network

VOG: Summarizing and Understanding Large Graphs Danai Koutra School of Computer Science Carnegie vocabulary subgraphs; (b) algorithm: we develop VOG, an efficient method to minimize the description cost not help the user gain further insights in the properties of the graph. In this paper, we propose VOG

246

Video Indexing and Summarization as a Tool for Privacy Protection  

E-print Network

number of surveillance camera networks being deployed all over the world has resulted in a high interest cameras during a day [2]. Obviously, the rapid growth of video surveillance systems results protection by design. Keywords-Video Indexing; Video Summarization; Privacy Pro- tection; Video Surveillance

Wichmann, Felix

247

A fuzzy ontology and its application to news summarization.  

PubMed

In this paper, a fuzzy ontology and its application to news summarization are presented. The fuzzy ontology with fuzzy concepts is an extension of the domain ontology with crisp concepts. It is more suitable to describe the domain knowledge than domain ontology for solving the uncertainty reasoning problems. First, the domain ontology with various events of news is predefined by domain experts. The document preprocessing mechanism will generate the meaningful terms based on the news corpus and the Chinese news dictionary defined by the domain expert. Then, the meaningful terms will be classified according to the events of the news by the term classifier. The fuzzy inference mechanism will generate the membership degrees for each fuzzy concept of the fuzzy ontology. Every fuzzy concept has a set of membership degrees associated with various events of the domain ontology. In addition, a news agent based on the fuzzy ontology is also developed for news summarization. The news agent contains five modules, including a retrieval agent, a document preprocessing mechanism, a sentence path extractor, a sentence generator, and a sentence filter to perform news summarization. Furthermore, we construct an experimental website to test the proposed approach. The experimental results show that the news agent based on the fuzzy ontology can effectively operate for news summarization. PMID:16240764

Lee, Chang-Shing; Jian, Zhi-Wei; Huang, Lin-Kai

2005-10-01

248

Mendelian Randomization Analysis With Multiple Genetic Variants Using Summarized Data  

PubMed Central

Genome-wide association studies, which typically report regression coefficients summarizing the associations of many genetic variants with various traits, are potentially a powerful source of data for Mendelian randomization investigations. We demonstrate how such coefficients from multiple variants can be combined in a Mendelian randomization analysis to estimate the causal effect of a risk factor on an outcome. The bias and efficiency of estimates based on summarized data are compared to those based on individual-level data in simulation studies. We investigate the impact of gene–gene interactions, linkage disequilibrium, and ‘weak instruments’ on these estimates. Both an inverse-variance weighted average of variant-specific associations and a likelihood-based approach for summarized data give similar estimates and precision to the two-stage least squares method for individual-level data, even when there are gene–gene interactions. However, these summarized data methods overstate precision when variants are in linkage disequilibrium. If the P-value in a linear regression of the risk factor for each variant is less than , then weak instrument bias will be small. We use these methods to estimate the causal association of low-density lipoprotein cholesterol (LDL-C) on coronary artery disease using published data on five genetic variants. A 30% reduction in LDL-C is estimated to reduce coronary artery disease risk by 67% (95% CI: 54% to 76%). We conclude that Mendelian randomization investigations using summarized data from uncorrelated variants are similarly efficient to those using individual-level data, although the necessary assumptions cannot be so fully assessed. PMID:24114802

Burgess, Stephen; Butterworth, Adam; Thompson, Simon G

2013-01-01

249

QCS : a system for querying, clustering, and summarizing documents.  

SciTech Connect

Information retrieval systems consist of many complicated components. Research and development of such systems is often hampered by the difficulty in evaluating how each particular component would behave across multiple systems. We present a novel hybrid information retrieval system--the Query, Cluster, Summarize (QCS) system--which is portable, modular, and permits experimentation with different instantiations of each of the constituent text analysis components. Most importantly, the combination of the three types of components in the QCS design improves retrievals by providing users more focused information organized by topic. We demonstrate the improved performance by a series of experiments using standard test sets from the Document Understanding Conferences (DUC) along with the best known automatic metric for summarization system evaluation, ROUGE. Although the DUC data and evaluations were originally designed to test multidocument summarization, we developed a framework to extend it to the task of evaluation for each of the three components: query, clustering, and summarization. Under this framework, we then demonstrate that the QCS system (end-to-end) achieves performance as good as or better than the best summarization engines. Given a query, QCS retrieves relevant documents, separates the retrieved documents into topic clusters, and creates a single summary for each cluster. In the current implementation, Latent Semantic Indexing is used for retrieval, generalized spherical k-means is used for the document clustering, and a method coupling sentence ''trimming'', and a hidden Markov model, followed by a pivoted QR decomposition, is used to create a single extract summary for each cluster. The user interface is designed to provide access to detailed information in a compact and useful format. Our system demonstrates the feasibility of assembling an effective IR system from existing software libraries, the usefulness of the modularity of the design, and the value of this particular combination of modules.

Dunlavy, Daniel M.

2006-08-01

250

QCS: a system for querying, clustering and summarizing documents.  

SciTech Connect

Information retrieval systems consist of many complicated components. Research and development of such systems is often hampered by the difficulty in evaluating how each particular component would behave across multiple systems. We present a novel hybrid information retrieval system--the Query, Cluster, Summarize (QCS) system--which is portable, modular, and permits experimentation with different instantiations of each of the constituent text analysis components. Most importantly, the combination of the three types of components in the QCS design improves retrievals by providing users more focused information organized by topic. We demonstrate the improved performance by a series of experiments using standard test sets from the Document Understanding Conferences (DUC) along with the best known automatic metric for summarization system evaluation, ROUGE. Although the DUC data and evaluations were originally designed to test multidocument summarization, we developed a framework to extend it to the task of evaluation for each of the three components: query, clustering, and summarization. Under this framework, we then demonstrate that the QCS system (end-to-end) achieves performance as good as or better than the best summarization engines. Given a query, QCS retrieves relevant documents, separates the retrieved documents into topic clusters, and creates a single summary for each cluster. In the current implementation, Latent Semantic Indexing is used for retrieval, generalized spherical k-means is used for the document clustering, and a method coupling sentence 'trimming', and a hidden Markov model, followed by a pivoted QR decomposition, is used to create a single extract summary for each cluster. The user interface is designed to provide access to detailed information in a compact and useful format. Our system demonstrates the feasibility of assembling an effective IR system from existing software libraries, the usefulness of the modularity of the design, and the value of this particular combination of modules.

Dunlavy, Daniel M.; Schlesinger, Judith D. (Center for Computing Sciences, Bowie, MD); O'Leary, Dianne P. (University of Maryland, College Park, MD); Conroy, John M. (Center for Computing Sciences, Bowie, MD)

2006-10-01

251

Get the Gist: A Summarizing Strategy for Any Content Area  

NSDL National Science Digital Library

In this series of lessons, students read newspaper articles obtained from newspaper websites. Students then identify journalism's "5 Ws and 1 H" (who, what, when, where, why, and how) and complete a template with the corresponding information they have found in the article. Finally, students use their notes to write a 20-word summary called a gist. Once students have mastered writing a gist using newspaper articles, the strategy is then applied to content area texts to support comprehension and summarizing skills.

2012-04-26

252

User and Device Adaptation in Summarizing Sports Videos  

NASA Astrophysics Data System (ADS)

Video summarization is defined as creating a video summary which includes only important scenes in the original video streams. In order to realize automatic video summarization, the significance of each scene needs to be determined. When targeted especially on broadcast sports videos, a play scene, which corresponds to a play, can be considered as a scene unit. The significance of every play scene can generally be determined based on the importance of the play in the game. Furthermore, the following two issues should be considered: 1) what is important depends on each user's preferences, and 2) the summaries should be tailored for media devices that each user has. Considering the above issues, this paper proposes a unified framework for user and device adaptation in summarizing broadcast sports videos. The proposed framework summarizes sports videos by selecting play scenes based on not only the importance of each play itself but also the users' preferences by using the metadata, which describes the semantic content of videos with keywords, and user profiles, which describe users' preference degrees for the keywords. The selected scenes are then presented in a proper way using various types of media such as video, image, or text according to device profiles which describe the device type. We experimentally verified the effectiveness of user adaptation by examining how the generated summaries are changed by different preference degrees and by comparing our results with/without using user profiles. The validity of device adaptation is also evaluated by conducting questionnaires using PCs and mobile phones as the media devices.

Nitta, Naoko; Babaguchi, Noboru

253

Learning Semantic Sub-graphs for Document Summarization  

Microsoft Academic Search

In this paper we present a method for summarizing document by creating a semantic graph of the original document and identifying the substructure of such a graph that can be used to extract sentences for a document summary. We start with deep syntactic analysis of the text and, for each sentence, extract logical form triples, subject-predicate-object. We then apply cross-sentence

Jure Leskovec; Marko Grobelnik; Natasa Milic-Frayling

254

Utility experience with alternative forms of power generation  

Microsoft Academic Search

This paper summarizes the Southern California Edison Company's experience with solar central thermal receivers, solar troughs, solar dishes, photovoltaics, geothermal facilities, and wind turbine-generators (WTGs). Topics considered include the characteristics of alternative energy facilities (small-scale construction and modularity, public and political support, investor support, high startup costs, energy conversion efficiency, technical complexity, manufacturing for commercialization), reducing photovoltaic cell costs, the

F. McCrackin; K. C. Holte; I. R. Straughan

1983-01-01

255

Duration Test Report for the Entegrity EW50 Wind Turbine  

SciTech Connect

This report summarizes the results of a duration test that NREL conducted on the Entegrity EW50 wind turbine. This test was conducted in accordance with the International Electrotechnical Commissions' (IEC) standard, Wind Turbine Generator System Part 2: Design requirements for small wind turbines, IEC 61400-2 Ed.2.0, 2006-03.

Smith, J.; Huskey, A.; Jager, D.; Hur, J.

2012-12-01

256

Wind and turbine characteristics needed for integration of wind turbine arrays into a utility system  

NASA Technical Reports Server (NTRS)

Wind data and wind turbine generator (WTG) performance characteristics are often available in a form inconvenient for use by utility planners and engineers. The steps used by utility planners are summarized and the type of wind and WTG data needed for integration of WTG arrays suggested. These included long term yearly velocity averages for preliminary site feasibility, hourly velocities on a 'wind season' basis for more detailed economic analysis and for reliability studies, worst-case velocity profiles for gusts, and various minute-to-hourly velocity profiles for estimating the effect of longer-term wind fluctuations on utility operations. wind turbine data needed includes electrical properties of the generator, startup and shutdown characteristics, protection characteristics, pitch control response and control strategy, and electro-mechanical model for stability analysis.

Park, G. L.

1982-01-01

257

Astro-Venture Geology Unit Conclusion: Summarizing Learning  

NSDL National Science Digital Library

in this concluding lesson, learners review astronomy and atmosphere systems and draw connections to geological processes and structures. They then summarize their learning from this unit in a final project. The lesson models scientific inquiry using the 5E instructional model and includes teacher notes, prerequisite concepts, common misconceptions, student journal and reading. This is lesson eight in the Astro-Venture Geology Training Unit that were developed to increase students' awareness of and interest in astrobiology and the many career opportunities that utilize science, math and technology skills. The lessons are designed for educators to use with the Astro-Venture multimedia modules.

2012-08-03

258

Comparing Abstractive and Extractive Summarization of Evaluative Text: Controversiality and Content Selection  

E-print Network

Comparing Abstractive and Extractive Summarization of Evaluative Text: Controversiality and Content with the controversiality of the opinions in the corpus. We then propose a clustering framework for summarization content. Controversiality and Summarization Strategy 2 2.1. Abstractive and Extractive Summarization 2 2.2. Summarization

Penn, Gerald

259

A Graph Summarization Algorithm Based on RFID Logistics  

NASA Astrophysics Data System (ADS)

Radio Frequency Identification (RFID) applications are set to play an essential role in object tracking and supply chain management systems. The volume of data generated by a typical RFID application will be enormous as each item will generate a complete history of all the individual locations that it occupied at every point in time. The movement trails of such RFID data form gigantic commodity flowgraph representing the locations and durations of the path stages traversed by each item. In this paper, we use graph to construct a warehouse of RFID commodity flows, and introduce a database-style operation to summarize graphs, which produces a summary graph by grouping nodes based on user-selected node attributes, further allows users to control the hierarchy of summaries. It can cut down the size of graphs, and provide convenience for users to study just on the shrunk graph which they interested. Through extensive experiments, we demonstrate the effectiveness and efficiency of the proposed method.

Sun, Yan; Hu, Kongfa; Lu, Zhipeng; Zhao, Li; Chen, Ling

260

Summarizing with Drawings: A Reading-Comprehension Strategy  

NSDL National Science Digital Library

The development of literacy skills is essential for student success. According to the National Science Education Standards , "Scientific literacy entails being able to read with understanding articles about science in the popular press and to engage in social conversation about the validity of conclusions" (NRC 1996). Teachers can help students develop these skills by finding methods that not only motivate but also engage students in the reading process. One such method is described in this article wherein students draw after reading science content. When students summarize by drawing they must form a visual representation of the information they're trying to convey. This provides an opportunity for students to elaborate and encode the information in a personally meaningful way. In addition, drawing after reading encourages students to reflect on what they have read and allows time to process the information.

Janine Elliott

2007-01-01

261

Astro-Venture Atmosphere Unit - Conclusion: Summarizing Learning  

NSDL National Science Digital Library

In this concluding lesson to the Astro-Venture Atmospheric Unit, students review and summarize their learning in a final project. Learners will draw and explain concept maps that show how the gases in the atmosphere interact with many different systems to support human habitability. They also write a superhero comic book explaining how superheroes representing elements combine their powers to protect the Earth's habitability. The lesson models scientific inquiry using the 5E instructional model and includes teacher notes, prerequisite concepts, common misconceptions, student journal and reading. This is the eighth lesson in the Astro-Venture Atmospheric Science Training Unit. The purpose of the unit is to increase students' awareness of and interest in astrobiology and the many career opportunities that utilize science, math and technology skills. The lessons are designed for educators to use in conjunction with the Astro-Venture multimedia modules.

262

REVIGO Summarizes and Visualizes Long Lists of Gene Ontology Terms  

PubMed Central

Outcomes of high-throughput biological experiments are typically interpreted by statistical testing for enriched gene functional categories defined by the Gene Ontology (GO). The resulting lists of GO terms may be large and highly redundant, and thus difficult to interpret. REVIGO is a Web server that summarizes long, unintelligible lists of GO terms by finding a representative subset of the terms using a simple clustering algorithm that relies on semantic similarity measures. Furthermore, REVIGO visualizes this non-redundant GO term set in multiple ways to assist in interpretation: multidimensional scaling and graph-based visualizations accurately render the subdivisions and the semantic relationships in the data, while treemaps and tag clouds are also offered as alternative views. REVIGO is freely available at http://revigo.irb.hr/. PMID:21789182

Supek, Fran; Bošnjak, Matko; Škunca, Nives; Šmuc, Tomislav

2011-01-01

263

[A biologistic model to summarize cohort nuptiality experience].  

PubMed

It is important to analyze in which measure the reduction of fertility rate is due to changes in the age at marriage for women, and to variations in the proportion of women who never got married. This article presents a bilogistic model used to summarize the history of groups of women, or cohorts, of the same age, who have complete or incomplete nuptiality experience. The model was applied to nuptiality data gathered by the 1975 National Fertility Survey conducted in the Dominican Republic. The results show that: 1) the bilogistic model describes effectively the variation according to age of the percentage of women who get married for the first time; 2) the model can be applied to not only cohorts with complete nuptiality experience, but to cohorts with experience still in progress; and 3) it is possible to detect changes in time of the value of the 2 main parameters of the model, the one related to age at beginning of nuptiality, and the one related to age at the end of the same process. PMID:12309556

Bocaz, A

1979-04-01

264

A novel tool for assessing and summarizing the built environment  

PubMed Central

Background A growing corpus of research focuses on assessing the quality of the local built environment and also examining the relationship between the built environment and health outcomes and indicators in communities. However, there is a lack of research presenting a highly resolved, systematic, and comprehensive spatial approach to assessing the built environment over a large geographic extent. In this paper, we contribute to the built environment literature by describing a tool used to assess the residential built environment at the tax parcel-level, as well as a methodology for summarizing the data into meaningful indices for linkages with health data. Methods A database containing residential built environment variables was constructed using the existing body of literature, as well as input from local community partners. During the summer of 2008, a team of trained assessors conducted an on-foot, curb-side assessment of approximately 17,000 tax parcels in Durham, North Carolina, evaluating the built environment on over 80 variables using handheld Global Positioning System (GPS) devices. The exercise was repeated again in the summer of 2011 over a larger geographic area that included roughly 30,700 tax parcels; summary data presented here are from the 2008 assessment. Results Built environment data were combined with Durham crime data and tax assessor data in order to construct seven built environment indices. These indices were aggregated to US Census blocks, as well as to primary adjacency communities (PACs) and secondary adjacency communities (SACs) which better described the larger neighborhood context experienced by local residents. Results were disseminated to community members, public health professionals, and government officials. Conclusions The assessment tool described is both easily-replicable and comprehensive in design. Furthermore, our construction of PACs and SACs introduces a novel concept to approximate varying scales of community and describe the built environment at those scales. Our collaboration with community partners at all stages of the tool development, data collection, and dissemination of results provides a model for engaging the community in an active research program. PMID:23075269

2012-01-01

265

Applying Semantics in Dataset Summarization for Solar Data Ingest Pipelines  

NASA Astrophysics Data System (ADS)

One goal in studying phenomena of the solar corona (e.g., flares, coronal mass ejections) is to create and refine predictive models of space weather - which have broad implications for terrestrial activity (e.g., communication grid reliability). The High Altitude Observatory (HAO) [1] presently maintains an infrastructure for generating time-series visualizations of the solar corona. Through raw data gathered at the Mauna Loa Solar Observatory (MLSO) in Hawaii, HAO performs follow-up processing and quality control steps to derive visualization sets consumable by scientists. Individual visualizations will acquire several properties during their derivation, including: (i) the source instrument at MLSO used to obtain the raw data, (ii) the time the data was gathered, (iii) processing steps applied by HAO to generate the visualization, and (iv) quality metrics applied over both the raw and processed data. In parallel to MLSO's standard data gathering, time stamped observation logs are maintained by MLSO staff, which covers content of potential relevance to data gathered (such as local weather and instrument conditions). In this setting, while a significant amount of solar data is gathered, only small sections will typically be of interest to consuming parties. Additionally, direct presentation of solar data collections could overwhelm consumers (particularly those with limited background in the data structuring). This work explores how multidimensional analysis based navigation can be used to generate summary views of data collections, based on two operations: (i) grouping visualization entries based on similarity metrics (e.g., data gathered between 23:15-23:30 6-21-2012), or (ii) filtering entries (e.g., data with a quality score of UGLY, on a scale of GOOD, BAD, or UGLY). Here, semantic encodings of solar visualization collections (based on the Resource Description Framework (RDF) Datacube vocabulary [2]) are being utilized, based on the flexibility of the RDF model for supporting the following use cases: (i) Temporal alignment of time-stamped MLSO observations with raw data gathered at MLSO. (ii) Linking of multiple visualization entries to common (and structurally complex) workflow structures - designed to capture the visualization generation process. To provide real-world use cases for the described approach, a semantic summarization system is being developed for data gathered from HAO's Coronal Multi-channel Polarimeter (CoMP) and Chromospheric Helium-I Imaging Photometer (CHIP) pipelines. Web Links: [1] http://mlso.hao.ucar.edu/ [2] http://www.w3.org/TR/vocab-data-cube/

Michaelis, J.; McGuinness, D. L.; Zednik, S.; West, P.; Fox, P. A.

2012-12-01

266

Wind energy in the mountains of New Hampshire as a potential energy source for Portsmouth Naval Shipyard  

Microsoft Academic Search

A feasibility study was conducted to determine whether the wind energy in the mountainous regions of New Hampshire could be used as a possible energy course for the Portsmouth Naval Shipyard in Portsmouth, New Hampshire. The results indicate that there is adequate wind energy available at mountain sites to drive even the largest wind turbine generators (WT's) now planned, and

W. A. Vachon; W. T. Downey; F. March; F. R. Madio; G. A. Schimke; J. E. Wade

1979-01-01

267

Wind energy in the mountains of New Hampshire as a potential energy source for the Portsmouth Naval Shipyard. Final report  

Microsoft Academic Search

A feasibility study was conducted to determine whether the wind energy in the mountainous regions of New Hampshire could be used as a possible energy course for the Portsmouth Naval Shipyard in Portsmouth, New Hampshire. The results indicate that there is adequate wind energy available at mountain sites to drive even the largest wind turbine generators (WT's) now planned, and

W. A. Vachon; W. T. Downey; F. March; F. R. Madio; G. R. Schimke

1979-01-01

268

Predicting Noise From Wind Turbines  

NASA Technical Reports Server (NTRS)

Computer program WINDY predicts broadband noise spectra of horizontal-axis wind-turbine generators. Enables adequate assessment of impact of broadband wind-turbine noise. Effects of turbulence, trailing-edge wakes, and bluntness taken into account. Program has practical application in design and siting of wind-turbine machines acceptable to community. Written in GW-Basic.

Grosveld, Ferdinand W.

1990-01-01

269

Space-time Modelling with Long-memory Dependence: Assessing Ireland's Wind Power Resource  

Microsoft Academic Search

We consider estimation of the long-term average power output from a wind turbine generator at a site for which little data on wind speeds is available. Long..termrecords of wind speeds at the twelve synoptic meteorological stations are also used. Inference is based on a simple and parsimonious approximating model which accounts for the main features of wind speeds in Ireland,

John Haslett; Adrian E. Raftery

270

A Novel Method to Estimate the O&M Costs for the Financial Planning of the Wind Power Projects Based on Wind Speed—A Case Study  

Microsoft Academic Search

A novel analytical method is proposed to find the reliability, the average failure rate, and the operation and maintenance costs (OMCs) of wind turbine generator based on the site wind data. The failure rate function is developed using wind turbine failure frequency distribution, published by Renewable Energy Information System on Internet, Germany. The presented method works computationally fast and does

Diwakar R. Joshi; Suresh H. Jangamshetti

2010-01-01

271

Managing contaminated sites  

SciTech Connect

This book summarizes the generic principles of contaminated site management. The book walks the reader through contaminated site identification, risk assessment and the evaluation of remediation alternatives. The book is divided into two major sections, problem diagnosis and development of site restoration. In problem diagnosis, the general principles of site investigation are discussed, including the objectives and differences between tier 1,2, and 3 investigations. The principles of data collection and analysis are presented. A small quantitative discussion of statistical analysis is presented but in keeping with the objectives of the text is not sufficient comprehensive or detailed to provide much of a guide for the practitioner. Chapters on contaminant fate and transport processes and risk assessment help the reader understand the role of these issues in site investigation and remedial planning. A chapter is also included on elements of a site characterization activity, which summarizes some of the key considerations in conducting a site investigation.

Asante-Duah, D.K.

1997-12-31

272

PERSIVAL, a System for Personalized Search and Summarization over Multimedia Healthcare Information.  

ERIC Educational Resources Information Center

This paper reports on the ongoing development of PERSIVAL (Personalized Retrieval and Summarization of Image, Video, and Language), a system designed to provide personalized access to a distributed digital library of medical literature and consumer health information. The goal for PERSIVAL is to tailor search, presentation, and summarization of…

McKeown, Kathleen R.; Chang, Shih-Fu; Cimino, James; Feiner, Steven K.; Friedman, Carol; Gravano, Luis; Hatzivassiloglou, Vasileios; Johnson, Steven; Jordan, Desmond A.; Klavans, Judith L.; Kushniruk, Andre; Patel, Vimla; Teufel, Simone

273

Content Analysis and Summarization for Video A Thesis Submitted in Partial Fulfillment  

E-print Network

Content Analysis and Summarization for Video Documents Lu, Shi A Thesis Submitted in Partial struc- ture analysis, video scene analysis, graph modeling and optimization. Both a dynamic video content coverage and the visual coherence. iii #12;iv Content Analysis and Summarization for Video

King, Kuo Chin Irwin

274

ITRI-04-05 Be Polite or Be Summarized Norton Trevisan Roman, Paul Piwek and  

E-print Network

ITRI-04-05 Be Polite or Be Summarized Norton Trevisan Roman, Paul Piwek and Ariadne Maria Brito://www.itri.brighton.ac.uk #12;Be Polite or Be Summarized Norton Trevisan Roman1 , Paul Piwek2 , and Ariadne Maria Brito Rizzoni Carvalho1 1 Institute of Computing, Unicamp, Brazil. norton@ic.unicamp.br ariadne@ic.unicamp.br 2

van Deemter, Kees

275

A new hybrid summarizer based on Vector Space model Statistical Physics and Linguistics  

E-print Network

summarization of Spanish medical texts. There are a lot of systems for automatic summarization using statistics models [16], Maximal Marginal Relevance [12] or discourse structure [22, 23, 27] were used. In this work in Spanish. The resulting summaries have been eval- uated with Rouge [17] obtaining good results. We present

Avignon et des Pays de Vaucluse, Université de

276

Kernel-based Approach for Automatic Evaluation of Natural Language Generation Technologies: Application to Automatic Summarization  

Microsoft Academic Search

In order to promote the study of auto- matic summarization and translation, we need an accurate automatic evaluation method that is close to human evalua- tion. In this paper, we present an eval- uation method that is based on convolu- tion kernels that measure the similarities between texts considering their substruc- tures. We conducted an experiment us- ing automatic summarization

Tsutomu Hirao; Manabu Okumura; Hideki Isozaki

2005-01-01

277

The Night I Followed the Dog: Sequencing, Summarizing and Main Idea  

NSDL National Science Digital Library

In this series of three lessons, students will listen to The Night I Followed the Dog by Nina Laden and work to summarize the story by writing a sequence of events from the beginning, middle, and end of the story. Then, with teacher guidance, students will summarize the text through determining the main idea and key details of the text.

Wikispaces

2012-08-02

278

Revealing Biological Modules via Graph Summarization Saket Navlakha, Michael C. Schatz, and Carl Kingsford  

E-print Network

. A common approach to this task is to partition the interaction graph into modules -- subsets of proteinsRevealing Biological Modules via Graph Summarization Saket Navlakha, Michael C. Schatz, and Carl the global organization of the cell. We propose a novel graph summarization (GS) technique, based on graph

Kingsford, Carl

279

VIDEO SUMMARIZATION USING A VISUALATTENTION MODEL Sophie MARAT, Mickel GUIRONNET, and Denis PELLERIN  

E-print Network

VIDEO SUMMARIZATION USING A VISUALATTENTION MODEL Sophie MARAT, Mickäel GUIRONNET, and Denis.gipsa-lab.inpg.fr ABSTRACT This paper presents a method of video summarization based on a visual attention model. The visual variation curve" which highlights changes on frames content during the video is introduced. Keyframes

Paris-Sud XI, Université de

280

Video summarization based on camera motion and a subjective evaluation method  

E-print Network

Video summarization based on camera motion and a subjective evaluation method M. Guironnet a , D of video summarization based on camera motion. It consists in selecting frames according to the succession summaries more generally. Subjects were asked to watch a video and to create a summary manually. From

Paris-Sud XI, Université de

281

Using Word Clouds to Summarize Multiple Search Results Rianne Kaptein1,2  

E-print Network

Using Word Clouds to Summarize Multiple Search Results Rianne Kaptein1,2 Jaap Kamps1 1 University In this paper we investigate the use of word clouds to summarize multiple search results. We study how well users can identify the relevancy and the topic of search results by looking only at the word clouds

Kamps, Jaap

282

Summarizing Neonatal Time Series Data Somayajulu G. Sripada, Ehud Reiter, Jim Hunter and Jin Yu  

E-print Network

Summarizing Neonatal Time Series Data Somayajulu G. Sripada, Ehud Reiter, Jim Hunter and Jin Yu,ereiter,jhunter,jyu}@csd.abdn.ac.uk Abstract We describe our investigations in gener- ating textual summaries of physiological time series data the content of the summary. We describe a prototype system that summarizes physiological time series. 1

Sripada, Yaji

283

Red-Tide Research Summarized to 1964 Including an Annotated Bibliography  

E-print Network

535^ Red-Tide Research Summarized to 1964 Including an Annotated Bibliography By George A, Harold E. Crowther, Acting Director Red-Tide Research Summarized to 1964 Including an Annotated Historical 2 General conditions during red-tide outbreaks 3 Temperature 3 Salinity 3 Rainfall 4 Wind 4 Light

284

Learning Sub-structures of Document Semantic Graphs for Document Summarization  

E-print Network

of semantic graph are weighted highly by SVM in the learned model. Categories and Subject Descriptors H.3Learning Sub-structures of Document Semantic Graphs for Document Summarization Jurij Leskovec Jozef@microsoft.com ABSTRACT In this paper we present a method for summarizing document by creating a semantic graph

Leskovec, Jure

285

GE MOD-1 noise study  

NASA Technical Reports Server (NTRS)

Noise studies of the MOD-1 Wind Turbine Generator are summarized, and a simple mathematical noise is presented which is adequate to correlate the sound levels found near the machine. A simple acoustic measure is suggested for use in evaluating far field sound levels. Use of this measure as input to a currently available sound complaint prediction program is discussed. Results of a recent statistical survey relative to the far field variation of this acoustic measure because of atmospheric effects are described.

Wells, R. J.

1981-01-01

286

Rare-Earth-Free Nanostructure Magnets: Rare-Earth-Free Permanent Magnets for Electric Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite  

SciTech Connect

REACT Project: The University of Alabama is developing new iron- and manganese-based composite materials for use in the electric motors of EVs and renewable power generators that will demonstrate magnetic properties superior to today’s best rare-earth-based magnets. Rare earths are difficult and expensive to refine. EVs and renewable power generators typically use rare earths to make their electric motors smaller and more powerful. The University of Alabama has the potential to improve upon the performance of current state-of-the-art rare-earth-based magnets using low-cost and more abundant materials such as manganese and iron. The ultimate goal of this project is to demonstrate improved performance in a full-size prototype magnet at reduced cost.

None

2012-01-01

287

Fast and Robust Compressive Summarization with Dual Decomposition and Multi-Task Learning  

E-print Network

. Almeida Andr´e F. T. Martins Priberam Labs, Alameda D. Afonso Henriques, 41, 2o , 1000-123 Lisboa in compres- sive summarization (Lin, 2003; Zajic et al., 2006; Daum´e, 2006), where summaries are formed

Xing, Eric P.

288

Phenotype-genotype association grid: a convenient method for summarizing multiple association analyses  

E-print Network

Background: High-throughput genotyping generates vast amounts of data for analysis; results can be difficult to summarize succinctly. A single project may involve genotyping many genes with multiple variants per gene and ...

Levy, Daniel

289

Linguistic Summarization of Time Series Under Different Granulation of Describing Features  

Microsoft Academic Search

We consider an extension to a new approach to the linguistic summarization of time series data proposed in our previous papers.\\u000a We summarize trends identified here with straight segments of a piecewise linear approximation of time series. Then we employ,\\u000a as a set of features, the duration, dynamics of change and variability, and assume different, human consistent granulations\\u000a of their

Janusz Kacprzyk; Anna Wilbik; Slawomir Zadrozny

2007-01-01

290

Evaluating the use of different positional strategies for sentence selection in biomedical literature summarization  

PubMed Central

Background The position of a sentence in a document has been traditionally considered an indicator of the relevance of the sentence, and therefore it is frequently used by automatic summarization systems as an attribute for sentence selection. Sentences close to the beginning of the document are supposed to deal with the main topic and thus are selected for the summary. This criterion has shown to be very effective when summarizing some types of documents, such as news items. However, this property is not likely to be found in other types of documents, such as scientific articles, where other positional criteria may be preferred. The purpose of the present work is to study the utility of different positional strategies for biomedical literature summarization. Results We have evaluated three different positional strategies: (1) awarding the sentences at the beginning of the document, (2) preferring those at the beginning and end of the document, and (3) weighting the sentences according to the section in which they appear. To this end, we have implemented two summarizers, one based on semantic graphs and the other based on concept frequencies, and evaluated the summaries they produce when combined with each of the positional strategies above using ROUGE metrics. Our results indicate that it is possible to improve the quality of the summaries by weighting the sentences according to the section in which they appear (?17% improvement in ROUGE-2 for the graph-based summarizer and ?20% for the frequency-based summarizer), and that the sections containing the more salient information are the Methods and Material and the Discussion and Results ones. Conclusions It has been found that the use of traditional positional criteria that award sentences at the beginning and/or the end of the document are not helpful when summarizing scientific literature. In contrast, a more appropriate strategy is that which weights sentences according to the section in which they appear. PMID:23445074

2013-01-01

291

Instructional Web Site Design 1 running head: INSTRUCTIONAL WEB SITE DESIGN  

E-print Network

Instructional Web Site Design 1 running head: INSTRUCTIONAL WEB SITE DESIGN Instructional Web Site;Instructional Web Site Design 2 Abstract The purpose of this review is to summarize the present literature relevant to web-based- instructional site design, with the goal of delineating general principles

Missouri-Rolla, University of

292

Clinicians' evaluation of computer-assisted medication summarization of electronic medical records.  

PubMed

Each year thousands of patients die of avoidable medication errors. When a patient is admitted to, transferred within, or discharged from a clinical facility, clinicians should review previous medication orders, current orders and future plans for care, and reconcile differences if there are any. If medication reconciliation is not accurate and systematic, medication errors such as omissions, duplications, dosing errors, or drug interactions may occur and cause harm. Computer-assisted medication applications showed promise as an intervention to reduce medication summarization inaccuracies and thus avoidable medication errors. In this study, a computer-assisted medication summarization application, designed to abstract and represent multi-source time-oriented medication data, was introduced to assist clinicians with their medication reconciliation processes. An evaluation study was carried out to assess clinical usefulness and analyze potential impact of such application. Both quantitative and qualitative methods were applied to measure clinicians' performance efficiency and inaccuracy in medication summarization process with and without the intervention of computer-assisted medication application. Clinicians' feedback indicated the feasibility of integrating such a medication summarization tool into clinical practice workflow as a complementary addition to existing electronic health record systems. The result of the study showed potential to improve efficiency and reduce inaccuracy in clinician performance of medication summarization, which could in turn improve care efficiency, quality of care, and patient safety. PMID:24393492

Zhu, Xinxin; Cimino, James J

2015-04-01

293

Automatic Summarization of MEDLINE Citations for Evidence–Based Medical Treatment: A Topic-Oriented Evaluation  

PubMed Central

As the number of electronic biomedical textual resources increases, it becomes harder for physicians to find useful answers at the point of care. Information retrieval applications provide access to databases; however, little research has been done on using automatic summarization to help navigate the documents returned by these systems. After presenting a semantic abstraction automatic summarization system for MEDLINE citations, we concentrate on evaluating its ability to identify useful drug interventions for fifty-three diseases. The evaluation methodology uses existing sources of evidence-based medicine as surrogates for a physician-annotated reference standard. Mean average precision (MAP) and a clinical usefulness score developed for this study were computed as performance metrics. The automatic summarization system significantly outperformed the baseline in both metrics. The MAP gain was 0.17 (p < 0.01) and the increase in the overall score of clinical usefulness was 0.39 (p < 0.05). PMID:19022398

Fiszman, Marcelo; Demner-Fushman, Dina; Kilicoglu, Halil; Rindflesch, Thomas C.

2009-01-01

294

Multi-document Summarization of Dissertation Abstracts Using a Variable-Based Framework.  

ERIC Educational Resources Information Center

Proposes a variable-based framework for multi-document summarization of dissertation abstracts in the fields of sociology and psychology that makes use of the macro- and micro-level discourse structure of dissertation abstracts as well as cross-document structure. Provides a list of indicator phrases that denote different aspects of the problem…

Ou, Shiyan; Khoo, Christopher S. G.; Goh, Dion H.

2003-01-01

295

Time-Embedding 2D Locality Preserving Projection for Video Summarization  

Microsoft Academic Search

In this paper we present an effective approach to creating quality video summarization. Considering the video frame sequence and visual similarity, we defined a novel distance formula, which is equivalent to Euclidean distance in respect of norm. A time embedding two dimensional locality preserving projection (TE-2DLPP) is proposed. Experiments show that the new algorithm has better time performance. From the

Maosheng Fu; Daming Zhang; Min Kong; Bin Luo

2008-01-01

296

iBIOMES Lite: summarizing biomolecular simulation data in limited settings.  

PubMed

As the amount of data generated by biomolecular simulations dramatically increases, new tools need to be developed to help manage this data at the individual investigator or small research group level. In this paper, we introduce iBIOMES Lite, a lightweight tool for biomolecular simulation data indexing and summarization. The main goal of iBIOMES Lite is to provide a simple interface to summarize computational experiments in a setting where the user might have limited privileges and limited access to IT resources. A command-line interface allows the user to summarize, publish, and search local simulation data sets. Published data sets are accessible via static hypertext markup language (HTML) pages that summarize the simulation protocols and also display data analysis graphically. The publication process is customized via extensible markup language (XML) descriptors while the HTML summary template is customized through extensible stylesheet language (XSL). iBIOMES Lite was tested on different platforms and at several national computing centers using various data sets generated through classical and quantum molecular dynamics, quantum chemistry, and QM/MM. The associated parsers currently support AMBER, GROMACS, Gaussian, and NWChem data set publication. The code is available at https://github.com/jcvthibault/ibiomes . PMID:24830957

Thibault, Julien C; Cheatham, Thomas E; Facelli, Julio C

2014-06-23

297

Protein Folding Trajectories Analysis: Summarization, Event Detection and Consensus Partial Folding Pathway  

E-print Network

Protein Folding Trajectories Analysis: Summarization, Event Detection and Consensus Partial Folding in protein folding trajectories. We pro- pose an approach that employs the simplicity of contact maps and po- tentially cure diseases caused by misfolding. The protein folding problem is therefore one

Yang, Hui

298

Simplification of Patent Claim Sentences for their Multilingual Paraphrasing and Summarization  

E-print Network

Simplification of Patent Claim Sentences for their Multilingual Paraphrasing and Summarization Joe patent writing regula- tions, patent claims must be rendered in a single sen- tence. As a result, sentences with more than 250 words are not uncommon. In order to achieve an easier com- prehension of patent

299

Seeing the Whole in Parts: Text Summarization for Web Browsing on Handheld Devices  

E-print Network

for summarizing parts of Web pages on handheld devices, such as personal digital assistants (PDAs), or cellular, as compared to other schemes. Keywords Personal Digital Assistant, PDA, Handheld Computers, Mobile Computing-Wide Web from handheld personal digital assistants (PDAs) is an exciting, promising addition to our use

Khan, Javed I.

300

Science Text Comprehension: Drawing, Main Idea Selection, and Summarizing as Learning Strategies  

ERIC Educational Resources Information Center

The purpose of two experiments was to contrast instructions to generate drawings with two text-focused strategies--main idea selection (Exp. 1) and summarization (Exp. 2)--and to examine whether these strategies could help students learn from a chemistry science text. Both experiments followed a 2 x 2 design, with drawing strategy instructions…

Leopold, Claudia; Leutner, Detlev

2012-01-01

301

ERIC Annual Report-1988. Summarizing the Accomplishments of the Educational Resources Information Center.  

ERIC Educational Resources Information Center

This is the second in a series of annual reports summarizing the activities and accomplishments of the Educational Resources Information Center (ERIC) program, which is funded and managed by the Office of Educational Resources and Improvement in the U.S. Department of Education. The report begins by presenting background information on ERIC's…

Krekeler, Nancy A.; Stonehill, Robert M.; Thomas, Robert L.

302

VIDEO SUMMARIZATION BY SPATIAL-TEMPORAL GRAPH OPTIMIZATION Shi Lu, Michael R. Lyu, Irwin King  

E-print Network

VIDEO SUMMARIZATION BY SPATIAL-TEMPORAL GRAPH OPTIMIZATION Shi Lu, Michael R. Lyu, Irwin King SAR {slu, lyu, king}@cse.cuhk.edu.hk ABSTRACT In this paper we present a novel approach for video sum-temporal content cov- erage and visual coherence of the video summary. The ap- proach has three stages. First

King, Kuo Chin Irwin

303

CLASSIFICATION OF SUMMARIZED VIDEOS USING HIDDEN MARKOV MODELS ON COMPRESSED CHROMATICITY  

E-print Network

grow, we need methods to assist us in the synthesis and analysis of digital video. Since1 CLASSIFICATION OF SUMMARIZED VIDEOS USING HIDDEN MARKOV MODELS ON COMPRESSED CHROMATICITY Science Simon Fraser University Vancouver, B.C., CANADA ABSTRACT As digital libraries and video databases

Drew, Mark S.

304

NEO-CORTEX: a performant user-oriented multi-document summarization system  

E-print Network

NEO-CORTEX: a performant user-oriented multi-document summarization system Florian Boudin and Juan the document set as a whole, as well as indi- vidual documents. We present NEO-CORTEX, a multi-document sum base formed by the NIST DUC-2005 and DUC-2006 data. Our experiments have shown that NEO- CORTEX

Avignon et des Pays de Vaucluse, Université de

305

Research on Personalized Recommendation System of Scientific and Technological Periodical Based on Automatic Summarization  

Microsoft Academic Search

Utilizing the theoretical methods and technology of automatic summarization system and personalized recommend system, ire study how to access to thesis document index, theme words, summary, readers' evaluations and other important recommended information from the vast amount of scientific and technological periodical documents quickly and effectively. The aim is to improve the scientific workers' research efficiency remarkably. On the basis

Qifeng Yang; Sihang Zhang; Bin Feng

2007-01-01

306

An automatic question answering and knowledge summarization approach for Q&A services  

Microsoft Academic Search

With regard to the drastic development of information technologies, the communication channels between enterprises and customers have become more and more complicated. Many enterprises have realized that electronic CRM mechanisms can provide efficient and cost?effective customer services. In order to automatically answer customer queries via contact centers, this paper proposes an integrated model with automatic question answering and knowledge summarization

2009-01-01

307

Extractive vs. NLG-based Abstractive Summarization of Evaluative Text: The Effect of Corpus Controversiality  

E-print Network

Controversiality Giuseppe Carenini and Jackie Chi Kit Cheung1 Department of Computer Science University of British controversiality of opinions con- tained in evaluative text, and report the results of a user study comparing extractive and NLG-based abstractive summarization at dif- ferent levels of controversiality. While the ab

Carenini, Giuseppe

308

Important program information is summarized on page 2 of this form. Child Care Support During Travel  

E-print Network

Important program information is summarized on page 2 of this form. Child Care Support During Employee ID/Student ID Position Department Daytime Phone Email Campus address, including mail code Event/Coverage for Planned Care Employee Signature Signature Date #12;2 Child Care Support During Travel GENERAL REQUIREMENTS

Rollins, Andrew M.

309

A framework is summarized which supports the planning of natural language argument struc  

E-print Network

Abstract A framework is summarized which supports the planning of natural language argument struc­ ture. One key aspect of natural argument is the order in which components are presented. This is in part responsible for both the coherency and persuasive effect of an argument. One means of effecting

Reed, Chris

310

PRINCIPAL COMPONENTS ANALYSIS TO SUMMARIZE MICROARRAY EXPERIMENTS: APPLICATION TO SPORULATION TIME SERIES  

Microsoft Academic Search

The enormous amount of data produced by microarray experiments can be unwieldy. A given series of microarray experiments produces observations of differential expression for thousands of genes across multiple conditions. These large data sets can be summarized with principal components analysis (PCA), a statistical technique that allows the key variables (or combinations of variables) in a multidimensional data set to

Soumya Raychaudhuri; Joshua M. Stuart; Russ B. Altman

2000-01-01

311

The Extent to Which Pre-Service Turkish Language and Literature Teachers Could Apply Summarizing Rules in Informative Texts  

ERIC Educational Resources Information Center

The purpose of the present study is to determine the extent to which pre-service Turkish Language and Literature teachers possess summarizing skill. Answers to the following questions were sought in the study: What is the summarizing skill level of the pre-service Turkish Language and Literature teachers? Which of the summarizing rules are…

Görgen, Izzet

2015-01-01

312

Beyond Description: Converting Web Site Usage Statistics into Concrete Site Improvement Ideas  

ERIC Educational Resources Information Center

Web site usage statistics are a widely used tool for Web site development, but libraries are still learning how to use them successfully. This case study summarizes how Morris Library at Southern Illinois University Carbondale implemented Google Analytics on its Web site and used the reports to inform a site redesign. As the main campus library at…

Arendt, Julie; Wagner, Cassie

2010-01-01

313

Wind power: executive summary on research on network wind power over the Pacific Northwest. Progress report, October 1979-September 1980  

SciTech Connect

This research in FY80 is composed of six primary tasks. These tasks include data collection and analysis, wind flow studies around an operational wind turbine generator (WTG), kite anemometer calibration, wind flow analysis and prediction, the Klickitat County small wind energy conversion system (SWECS) program, and network wind power analysis. The data collection and analysis task consists of four sections, three of which deal with wind flow site surveys and the fourth with collecting and analyzing wind data from existing data stations.

Baker, R.W.; Hewson, E.W.

1980-10-01

314

Multi-document Summarization Based on Cluster Using Nonnegative Matrix Factorization  

Microsoft Academic Search

In this paper, a new summarization method, which uses non-negative matrix factorization (NMF) and K-means clustering, is introduced to extract meaningful sentences from multi-documents. The proposed method can improve the\\u000a quality of document summaries because the inherent semantics of the documents are well reflected by using the semantic features\\u000a calculated by NMF and the sentences most relevant to the given

Sun Park; Ju-hong Lee; Deok-hwan Kim; Chan-min Ahn

2007-01-01

315

Tolerance Rough Set Theory Based Data Summarization for Clustering Large Datasets  

Microsoft Academic Search

\\u000a Finding clusters in large datasets is an interesting challenge in many fields of Science and Technology. Many clustering methods\\u000a have been successfully developed over the years. However, most of the existing clustering methods need multiple data scans\\u000a to get converged. Therefore, these methods cannot be applied for cluster analysis in large datasets. Data summarization can\\u000a be used as a pre-processing

Bidyut Patra; Sukumar Nandi

316

Learning sub-structures of document semantic graphs for document summarization  

Microsoft Academic Search

In this paper we present a method for summarizing document by creating a semantic graph of the original document and identifying the substructure of such a graph that can be used to extract sentences for a document summary. We start with deep syntactic analysis of the text and, for each sentence, extract logical form triples, subject-predicate-object. We then apply cross-sentence

Jure Leskovec; Marko Grobelnik; Natasa Milic-Frayling

2004-01-01

317

Video summarization based tele-endoscopy: a service to efficiently manage visual data generated during wireless capsule endoscopy procedure.  

PubMed

Wireless capsule endoscopy (WCE) has great advantages over traditional endoscopy because it is portable and easy to use. More importantly, WCE combined with mobile computing ensures rapid transmission of diagnostic data to hospitals and enables off-site senior gastroenterologists to offer timely decision making support. However, during this WCE process, video data are produced in huge amounts, but only a limited amount of data is actually useful for diagnosis. The sharing and analysis of this video data becomes a challenging task due the constraints such as limited memory, energy, and communication capability. In order to facilitate efficient WCE data collection and browsing tasks, we present a video summarization-based tele-endoscopy service that estimates the semantically relevant video frames from the perspective of gastroenterologists. For this purpose, image moments, curvature, and multi-scale contrast are computed and are fused to obtain the saliency map of each frame. This saliency map is used to select keyframes. The proposed tele-endoscopy service selects keyframes based on their relevance to the disease diagnosis. This ensures the sending of diagnostically relevant frames to the gastroenterologist instead of sending all the data, thus saving transmission costs and bandwidth. The proposed framework also saves storage costs as well as the precious time of doctors in browsing patient's information. The qualitative and quantitative results are encouraging and show that the proposed service provides video keyframes to the gastroenterologists without discarding important information. PMID:25037715

Mehmood, Irfan; Sajjad, Muhammad; Baik, Sung Wook

2014-09-01

318

DiffNet: automatic differential functional summarization of dE-MAP networks.  

PubMed

The study of genetic interaction networks that respond to changing conditions is an emerging research problem. Recently, Bandyopadhyay et al. (2010) proposed a technique to construct a differential network (dE-MAPnetwork) from two static gene interaction networks in order to map the interaction differences between them under environment or condition change (e.g., DNA-damaging agent). This differential network is then manually analyzed to conclude that DNA repair is differentially effected by the condition change. Unfortunately, manual construction of differential functional summary from a dE-MAP network that summarizes all pertinent functional responses is time-consuming, laborious and error-prone, impeding large-scale analysis on it. To this end, we propose DiffNet, a novel data-driven algorithm that leverages Gene Ontology (go) annotations to automatically summarize a dE-MAP network to obtain a high-level map of functional responses due to condition change. We tested DiffNet on the dynamic interaction networks following MMS treatment and demonstrated the superiority of our approach in generating differential functional summaries compared to state-of-the-art graph clustering methods. We studied the effects of parameters in DiffNet in controlling the quality of the summary. We also performed a case study that illustrates its utility. PMID:25009128

Seah, Boon-Siew; Bhowmick, Sourav S; Dewey, C Forbes

2014-10-01

319

Monitoring the Implementation of Consultation Planning, Recording, and Summarizing in a Breast Care Center  

PubMed Central

OBJECTIVE We implemented and monitored a clinical service, Consultation Planning, Recording and Summarizing (CPRS), in which trained facilitators elicit patient questions for doctors, and then audio-record, and summarize the doctor-patient consultations. METHODS We trained 8 schedulers to offer CPRS to breast cancer patients making treatment decisions, and trained 14 premedical interns to provide the service. We surveyed a convenience sample of patients regarding their self-efficacy and decisional conflict. We solicited feedback from physicians, schedulers, and CPRS staff on our implementation of CPRS. RESULTS 278 patients used CPRS over the 22 month study period, an exploitation rate of 32% compared to our capacity. Thirty-seven patients responded to surveys, providing pilot data showing improvements in self-efficacy and decisional conflict. Physicians, schedulers, and premedical interns recommended changes in the program’s locations; delivery; products; and screening, recruitment and scheduling processes. CONCLUSION Our monitoring of this implementation found elements of success while surfacing recommendations for improvement. PRACTICE IMPLICATIONS We made changes based on study findings. We moved Consultation Planning to conference rooms or telephone sessions; shortened the documents produced by CPRS staff; diverted slack resources to increase recruitment efforts; and obtained a waiver of consent in order to streamline and improve ongoing evaluation. PMID:18755564

Belkora, Jeffrey K.; Loth, Meredith K.; Chen, Daniel F.; Chen, Jennifer Y.; Volz, Shelley; Esserman, Laura J.

2008-01-01

320

Using clustering and a modified classification algorithm for automatic text summarization  

NASA Astrophysics Data System (ADS)

In this paper we describe a modified classification method destined for extractive summarization purpose. The classification in this method doesn't need a learning corpus; it uses the input text to do that. First, we cluster the document sentences to exploit the diversity of topics, then we use a learning algorithm (here we used Naive Bayes) on each cluster considering it as a class. After obtaining the classification model, we calculate the score of a sentence in each class, using a scoring model derived from classification algorithm. These scores are used, then, to reorder the sentences and extract the first ones as the output summary. We conducted some experiments using a corpus of scientific papers, and we have compared our results to another summarization system called UNIS.1 Also, we experiment the impact of clustering threshold tuning, on the resulted summary, as well as the impact of adding more features to the classifier. We found that this method is interesting, and gives good performance, and the addition of new features (which is simple using this method) can improve summary's accuracy.

Aries, Abdelkrime; Oufaida, Houda; Nouali, Omar

2013-01-01

321

Analysis of a stand-alone power system for remote-site applications. Final report  

SciTech Connect

The Coast Guard has over 40 automated remote lighthouses which are powered by a continuously run, diesel-electric generator. Continuous operation of a diesel generator increases maintenance requirements as well as fuel costs. Previous studies have indicated that maintenance and operational costs at remote, automated lighthouses could be substantially reduced by incorporating a hybrid-energy-management system. Such a 120-volt system was designed, developed, and built and includes the following major components: diesel-electric generator, wind turbine generator, battery storage, inverter, system controller and lighthouse load. This report discusses the system design, the chronological record of events, conclusions, and recommendations of over three months of continuous data collection and system operation. Additionally, each major system component is discussed in detail in an appropriate appendix.

Thacker, J.R.

1986-05-01

322

Summary of the Hanford Site Environmental Report for Calendar Year 2004  

SciTech Connect

This booklet summarizes the information contained in ''Hanford Site Environmental Report for Calendar Year 2004.'' The Hanford Site environmental report, published annually since 1958, includes information and summary data that provide an overview of the activities at DOE's Hanford Site.

Hanf, Robert W.; Morasch, Launa F.; Poston, Ted M.; Dirkes, Roger L.

2005-09-26

323

Site characterization of the West Chestnut Ridge site  

SciTech Connect

This report summarizes the results of investigations performed to date on the West Chestnut Ridge Site, on the Department of Energy (DOE) Oak Ridge Reservation. The investigations performed include geomorphic observations, areal geologic mapping, surficial soil mapping, subsurface investigations, soil geochemical and mineralogical analyses, geohydrologic testing, groundwater fluctuation monitoring, and surface water discharge and precipitation monitoring. 33 references, 32 figures, 24 tables.

Ketelle, R H; Huff, D D

1984-09-01

324

CSMRI Site Proposed Plan Proposed Plan for CSMRI Site  

E-print Network

Pollution Contingency Plan (NCP) process. The Proposed Plan summarizes information that can be found and floor drains in the buildings. In January 1992, a water main owned by the City of Golden broke on the Site and began discharging a large volume of water into the settling pond. The U.S. Important Dates

325

SEMANTIC AUDIOVISUAL ANALYSIS FOR VIDEO SUMMARIZATION Junyong You, Member, IEEE, Miska M Hannuksela, Member, IEEE, Moncef Gabbouj, Senior Member,  

E-print Network

SEMANTIC AUDIOVISUAL ANALYSIS FOR VIDEO SUMMARIZATION Junyong You, Member, IEEE, Miska M Hannuksela analysis approach for video summarization. The sequence to be analyzed is first segmented into scenes importance is then calculated using selected audio and video features. Subsequently, key frames are extracted

Gabbouj, Moncef

326

Comparison of clinical knowledge bases for summarization of electronic health records.  

PubMed

Automated summarization tools that create condition-specific displays may improve clinician efficiency. These tools require new kinds of knowledge that is difficult to obtain. We compared five problem-medication pair knowledge bases generated using four previously described knowledge base development approaches. The number of pairs in the resulting mapped knowledge bases varied widely due to differing mapping techniques from the source terminologies, ranging from 2,873 to 63,977,738 pairs. The number of overlapping pairs across knowledge bases was low, with one knowledge base having half of the pairs overlapping with another knowledge base, and most having less than a third overlapping. Further research is necessary to better evaluate the knowledge bases independently in additional settings, and to identify methods to integrate the knowledge bases. PMID:23920991

McCoy, Allison B; Sittig, Dean F; Wright, Adam

2013-01-01

327

Hanford Site 1998 Environmental Report  

SciTech Connect

This Hanford Site environmental report is prepared annually to summarize environmental data and information, to describe environmental management performance, to demonstrate the status of compliance with environmental regulations, and to highlight major environmental programs and efforts. The report is written to meet requirements and guidelines of the U.S. Department of Energy (DOE) and to meet the needs of the public. This summary has been written with a minimum of technical terminology. Individual sections of the report are designed to: describe the Hanford Site and its mission; summarize the status of compliance with environmental regulations; describe the environmental programs at the Hanford Site; discuss the estimated radionuclide exposure to the public from 1998 Hanford Site activities; present the effluent monitoring, environmental surveillance, and groundwater protection and monitoring information; and discuss the activities to ensure quality.

RL Dirkes; RW Hanf; TM Poston

1999-09-21

328

Hanford Site Environmental Report 1999  

SciTech Connect

This Hanford Site environmental report is prepared annually to summarize environmental data and information, to describe environmental management performance, to demonstrate the status of compliance with environmental regulations, and to highlight major environmental programs and efforts. The report is written to meet requirements and guidelines of the U.S. Department of Energy (DOE) and to meet the needs of the public. This summary has been written with a minimum of technical terminology. Individual sections of the report are designed to: (1) describe the Hanford Site and its mission; (2) summarize the status of compliance with environmental regulations; (3) describe the environmental programs at the Hanford Site; (4) discuss the estimated radionuclide exposure to the public from 1999 Hanford Site activities; (5) present the effluent monitoring, environmental surveillance, groundwater protection and monitoring information; and (6) discuss the activities to ensure quality.

TM Poston; RW Hanf; RL Dirkes

2000-09-28

329

Interactive exploration of surveillance video through action shot summarization and trajectory visualization.  

PubMed

We propose a novel video visual analytics system for interactive exploration of surveillance video data. Our approach consists of providing analysts with various views of information related to moving objects in a video. To do this we first extract each object's movement path. We visualize each movement by (a) creating a single action shot image (a still image that coalesces multiple frames), (b) plotting its trajectory in a space-time cube and (c) displaying an overall timeline view of all the movements. The action shots provide a still view of the moving object while the path view presents movement properties such as speed and location. We also provide tools for spatial and temporal filtering based on regions of interest. This allows analysts to filter out large amounts of movement activities while the action shot representation summarizes the content of each movement. We incorporated this multi-part visual representation of moving objects in sViSIT, a tool to facilitate browsing through the video content by interactive querying and retrieval of data. Based on our interaction with security personnel who routinely interact with surveillance video data, we identified some of the most common tasks performed. This resulted in designing a user study to measure time-to-completion of the various tasks. These generally required searching for specific events of interest (targets) in videos. Fourteen different tasks were designed and a total of 120 min of surveillance video were recorded (indoor and outdoor locations recording movements of people and vehicles). The time-to-completion of these tasks were compared against a manual fast forward video browsing guided with movement detection. We demonstrate how our system can facilitate lengthy video exploration and significantly reduce browsing time to find events of interest. Reports from expert users identify positive aspects of our approach which we summarize in our recommendations for future video visual analytics systems. PMID:24051778

Meghdadi, Amir H; Irani, Pourang

2013-12-01

330

A spatio-temporal mining approach towards summarizing and analyzing protein folding trajectories  

PubMed Central

Understanding the protein folding mechanism remains a grand challenge in structural biology. In the past several years, computational theories in molecular dynamics have been employed to shed light on the folding process. Coupled with high computing power and large scale storage, researchers now can computationally simulate the protein folding process in atomistic details at femtosecond temporal resolution. Such simulation often produces a large number of folding trajectories, each consisting of a series of 3D conformations of the protein under study. As a result, effectively managing and analyzing such trajectories is becoming increasingly important. In this article, we present a spatio-temporal mining approach to analyze protein folding trajectories. It exploits the simplicity of contact maps, while also integrating 3D structural information in the analysis. It characterizes the dynamic folding process by first identifying spatio-temporal association patterns in contact maps, then studying how such patterns evolve along a folding trajectory. We demonstrate that such patterns can be leveraged to summarize folding trajectories, and to facilitate the detection and ordering of important folding events along a folding path. We also show that such patterns can be used to identify a consensus partial folding pathway across multiple folding trajectories. Furthermore, we argue that such patterns can capture both local and global structural topology in a 3D protein conformation, thereby facilitating effective structural comparison amongst conformations. We apply this approach to analyze the folding trajectories of two small synthetic proteins-BBA5 and GSGS (or Beta3S). We show that this approach is promising towards addressing the above issues, namely, folding trajectory summarization, folding events detection and ordering, and consensus partial folding pathway identification across trajectories. PMID:17407611

Yang, Hui; Parthasarathy, Srinivasan; Ucar, Duygu

2007-01-01

331

FY 2012 SummarY oF PerFormance and Financial inFormation  

E-print Network

. (Credit: NASA/Scott Andrews/Canon); Curiosity Approaching Mars, Artist's Concept. (Credit: NASA celebrated the landing of the aptly named Curiosity Rover on the surface of Mars. NASA's people continue Administration #12;Front Cover: Outside Front Main Image: Curiosity Landing Site Panorama, with the Heights

332

VidiWeb: Utilizing Mobile Video and Social Summarization to Augment Human Memory  

Microsoft Academic Search

With the proliferation of camera mobile phones, life-logging might seem like a seamless everyday occurrence. However the lack of service to support the effective use of mobile video means it has not yet fulfilled its full potential in a range of domains. Web 2.0 sites, the main target of such content, do not provide the necessary tools to support common

Vaiva Kalnikaite; Jose San Pedro

2008-01-01

333

Closure report for Corrective Action Unit 211, Area 15 EPA Farm waste sites, Nevada Test Site, Nevada  

SciTech Connect

This Closure Report summarizes the corrective actions which were completed at the Corrective Action Sites within Corrective Action Unit 211 Area 15 Farm Waste Sties at the Nevada Test Site. Current site descriptions, observations and identification of wastes removed are included on FFACO Corrective Action Site housekeeping closure verification forms.

NONE

1998-04-01

334

Development of a Summarized Health Index (SHI) for Use in Predicting Survival in Sea Turtles  

PubMed Central

Veterinary care plays an influential role in sea turtle rehabilitation, especially in endangered species. Physiological characteristics, hematological and plasma biochemistry profiles, are useful references for clinical management in animals, especially when animals are during the convalescence period. In this study, these factors associated with sea turtle surviving were analyzed. The blood samples were collected when sea turtles remained alive, and then animals were followed up for surviving status. The results indicated that significantly negative correlation was found between buoyancy disorders (BD) and sea turtle surviving (p < 0.05). Furthermore, non-surviving sea turtles had significantly higher levels of aspartate aminotranspherase (AST), creatinine kinase (CK), creatinine and uric acid (UA) than surviving sea turtles (all p < 0.05). After further analysis by multiple logistic regression model, only factors of BD, creatinine and UA were included in the equation for calculating summarized health index (SHI) for each individual. Through evaluation by receiver operating characteristic (ROC) curve, the result indicated that the area under curve was 0.920 ± 0.037, and a cut-off SHI value of 2.5244 showed 80.0% sensitivity and 86.7% specificity in predicting survival. Therefore, the developed SHI could be a useful index to evaluate health status of sea turtles and to improve veterinary care at rehabilitation facilities. PMID:25803431

Li, Tsung-Hsien; Chang, Chao-Chin; Cheng, I-Jiunn; Lin, Suen-Chuain

2015-01-01

335

The Summarization of Pyro-shock Testing Data and SRS Level Prediction Methodology  

NASA Astrophysics Data System (ADS)

Mechanical separation through pyrotechnic shock is widely employed in space vehicle separation. These kinds of pyrotechnic shock devices produce transient loads with high levels of acceleration at different location of satellite. The prediction of acceleration level is significant for the definition of payload shock environment in the earlier design phase and selection of proper accelerometers in the test. This paper summarizes the shock response spectrum (SRS) from the pyrotechnical testing data of several typical satellites from the view points of distance from the source, complex equipment mount structure, etc. The empirical curve for the prediction possibility of pyrotechnic shock level is discussed. At first, the SRS distribution maps at the measure points were compared to understand the shock response environment which may differ from the distance attenuation from the shock source, effects of material and size of structural components, effects of joints and inserts of structural components, etc. Then, the paper discusses the prediction methodologies related to the empirical and extrapolation model presented by NASA-HDBK-7005 is compared to the testing data distribution of several satellites.

Shi, Qinzhong; Ando, Shigemasa; Seko, Hiromi; Nagahama, Kenta; Saegusa, Hiroshi

2004-08-01

336

Development of a Summarized Health Index (SHI) for Use in Predicting Survival in Sea Turtles.  

PubMed

Veterinary care plays an influential role in sea turtle rehabilitation, especially in endangered species. Physiological characteristics, hematological and plasma biochemistry profiles, are useful references for clinical management in animals, especially when animals are during the convalescence period. In this study, these factors associated with sea turtle surviving were analyzed. The blood samples were collected when sea turtles remained alive, and then animals were followed up for surviving status. The results indicated that significantly negative correlation was found between buoyancy disorders (BD) and sea turtle surviving (p < 0.05). Furthermore, non-surviving sea turtles had significantly higher levels of aspartate aminotranspherase (AST), creatinine kinase (CK), creatinine and uric acid (UA) than surviving sea turtles (all p < 0.05). After further analysis by multiple logistic regression model, only factors of BD, creatinine and UA were included in the equation for calculating summarized health index (SHI) for each individual. Through evaluation by receiver operating characteristic (ROC) curve, the result indicated that the area under curve was 0.920 ± 0.037, and a cut-off SHI value of 2.5244 showed 80.0% sensitivity and 86.7% specificity in predicting survival. Therefore, the developed SHI could be a useful index to evaluate health status of sea turtles and to improve veterinary care at rehabilitation facilities. PMID:25803431

Li, Tsung-Hsien; Chang, Chao-Chin; Cheng, I-Jiunn; Lin, Suen-Chuain

2015-01-01

337

YUCCA MOUNTAIN SITE DESCRIPTION  

SciTech Connect

The ''Yucca Mountain Site Description'' summarizes, in a single document, the current state of knowledge and understanding of the natural system at Yucca Mountain. It describes the geology; geochemistry; past, present, and projected future climate; regional hydrologic system; and flow and transport within the unsaturated and saturated zones at the site. In addition, it discusses factors affecting radionuclide transport, the effect of thermal loading on the natural system, and tectonic hazards. The ''Yucca Mountain Site Description'' is broad in nature. It summarizes investigations carried out as part of the Yucca Mountain Project since 1988, but it also includes work done at the site in earlier years, as well as studies performed by others. The document has been prepared under the Office of Civilian Radioactive Waste Management quality assurance program for the Yucca Mountain Project. Yucca Mountain is located in Nye County in southern Nevada. The site lies in the north-central part of the Basin and Range physiographic province, within the northernmost subprovince commonly referred to as the Great Basin. The basin and range physiography reflects the extensional tectonic regime that has affected the region during the middle and late Cenozoic Era. Yucca Mountain was initially selected for characterization, in part, because of its thick unsaturated zone, its arid to semiarid climate, and the existence of a rock type that would support excavation of stable openings. In 1987, the United States Congress directed that Yucca Mountain be the only site characterized to evaluate its suitability for development of a geologic repository for high-level radioactive waste and spent nuclear fuel.

A.M. Simmons

2004-04-16

338

Hanford Site Environmental Report 1993  

SciTech Connect

The Hanford Site Environmental Report is prepared annually to summarize environmental data and information, describe environmental management performance, and demonstrate the status of compliance with environmental regulations. The report also highlights major environmental programs and efforts. The report is written to meet reporting requirements and Guidelines of the U.S. Department of Energy (DOE) an to meet the needs of the public. This summary has been written with a minimum of technical terminology. Individual sections of the report are designed to (a) describe the Hanford Site and its mission, (b) summarize the status in 1993 of compliance with environmental regulations, (c) describe the environmental programs at the Hanford Site, (d) discuss estimated radionuclide exposure to the public from 1993 Hanford activities, (e) present information on effluent monitoring and environmental surveillance, including ground-water protection and monitoring, (f) discuss activities to ensure quality. More detailed information can be found in the body of the report, the appendixes, and the cited references.

Dirkes, R.L.; Hanf, R.W.; Woodruff, R.K. [eds.

1994-06-01

339

1994 Site Environmental Report  

SciTech Connect

The 1994 Site Environmental Report summarizes environmental activities at Lawrence Berkeley Laboratory (LBL) for the calendar year (CY) 1994. The report strives to present environmental data in a manner that characterizes the performance and compliance status of the Laboratory`s environmental management programs when measured against regulatory standards and DOE requirements. The report also discusses significant highlight and planning efforts of these programs. The format and content of the report are consistent with the requirements of the US Department of Energy (DOE) Order 5400.1, General Environmental Protection Program.

NONE

1995-05-01

340

Summarization of recent literature pertaining to an occupational health standard for cadmium. Final report  

SciTech Connect

Available information on cadmium was reviewed. Topics discussed included human and animal toxicology, analytical and sampling methods, work practices, and engineering controls. Studies have shown that cadmium is absorbed by the body and distributed to various tissues with the lungs and gastrointestinal tract providing the primary routes of intake and adsorption. Industrial exposure arises mainly through inhalation of cadmium dusts and fumes. Cigarette smoking significantly increases exposure to cadmium through this route. Fumes and dusts produce acute and chronic lung disease and chronic systemic disease. Occupational exposure to cadmium is frequently involved simultaneous with exposure to other metals, complicating the problem of isolating a single causative agent. The kidney is the critical organ for long term effects. The liver is considered to be one of the primary sites of cadmium accumulation and a major site of detoxification. Evidence for cadmium induced hypertension is still unclear. There is little human data concerning the transfer of cadmium across the placenta, uptake and distribution of cadmium in the embryo and fetus, and teratogenic effects. Available data fail to provide conclusive evidence that cadmium causes cancer.

Not Available

1980-06-01

341

Nevada National Security Site Industrial Sites Project Closeout - 12498  

SciTech Connect

The U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office is responsible for environmental restoration (ER) at the Nevada National Security Site (NNSS). This includes remediation at Industrial Sites where past nuclear testing activities and activities that supported nuclear testing may have or are known to have resulted in the release of contaminants into the environment. Industrial Sites at the NNSS have included nuclear facilities that supported the nuclear rocket/missile development programs, gas stations, landfills, spill sites, ordnance sites, and numerous other waste disposal and release sites. The NNSS Industrial Sites activities neared completion at the end of fiscal year 2011 while other activities required under the Federal Facility Agreement and Consent Order (FFACO) and part of the same NNSS ER Project are forecasted to extend to 2027 or beyond. With the majority of Industrial Sites corrective action units (CAUs) completed (more than 250 CAUs and over 1,800 corrective action sites), it was determined that an activity closeout process should be implemented to ensure that the work completed over the past 15 years is well documented in a comprehensive and concise summary. While the process used to close each individual CAU is described in approved documents, no single document describes in summary fashion the work completed to close the many individual Industrial Sites. The activity closeout process will be used to develop an Industrial Sites closeout document that describes these years of work. This document will summarize the number of Industrial Sites closed under the FFACO and provide general descriptions of projects, contaminants removed, and sites closed in place with corresponding Use Restrictions. Other pertinent information related to Industrial Sites work such as the project history, closure decisions, historical declarations, remediation strategies, and final CAU status will be included in the closeout document, along with a table listing each CAU and corresponding corrective action sites within each CAU. Using this process of conducting the activity closeout and developing a closeout document may prove useful for other ER projects within the DOE complex in describing how a long period of ER can be summarized in a single document. The NNSS Industrial Sites activities were completed over the span of 15 years and involved the investigation, cleanup or Use Restriction, and closure of more than 260 CAUs and over 1,800 sites. These activities will conclude in FY 2012 (with the exception of one CAU). In order to capture the work completed over this length of time and document decisions made during the activities, a closeout effort was initiated. The closeout will review the work conducted during the Industrial Sites activities and produce a single document that summarizes Industrial Sites activities. This closeout is being conducted at an interim stage in the overall NNSA/NSO ER Project since the Soils and UGTA activities will continue for a number of years, but the completion of the Industrial Sites project warrants conducting a closeout now while personnel are available and information is still current. The process followed by NNSA/NSO in conducing project closeout for the Industrial Sites portion of the ER program may prove useful within the DOE complex in demonstrating how a large ER project can be summarized. (authors)

Cabble, Kevin [U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office, Las Vegas, Nevada 89193 (United States); Krauss, Mark [S.M. Stoller for Navarro-Intera, LLC, Las Vegas, Nevada 89193 (United States); Matthews, Pat [Navarro-Intera, LLC, Las Vegas, Nevada 8919 (United States)

2012-07-01

342

The Roman Military Sites of Britain  

NSDL National Science Digital Library

Peter Green, a military history enthusiast, has created The Roman Military Sites of Britain to provide location information and background material on the history of the Roman Army's occupation of Britain. This handsome site contains five gazetteers, organized by region, which summarize important Roman military sites and link to detailed maps. A collection of contemporary photographs provides visitors with a view of the physical surroundings of the sites. In addition to the historic geographic information, this site also introduces the organization of the Roman Army from the first century to the fifth century, explains Roman military terms and unit names, describes typical Roman military sites, and summarizes major military events in Britain during the Roman occupation. For visitors who desire more information, Green supplies a general reading list about the history of Britain and its relation to the Roman army as well as an extensive Roman military bibliography of Britain.

343

Field Validation of a Doubly Fed Induction Generator (DFIG) Model  

Microsoft Academic Search

With the increased penetration of wind power it is important to carefully asses the impact of grid integration of wind turbine generators. Accurate wind turbine generator models are required for this purpose. Variable speed wind turbine generators are widely being interconnected to the grid to ensure optimum power capture from the wind energy. In this paper, an attempt is made

Soubhik Auddy; R. K. Varma; M. Dang

2007-01-01

344

Site characterization and hazard assessment criteria for natural phenomena hazards at DOE sites  

SciTech Connect

This paper briefly summarizes requirements for site characterization and hazard assessment of Natural Phenomena Hazards for compliance with DOE Order 5480.28. The site characterization criteria for NPH evaluation are provided in a draft DOE-STD-1022-XX and the assessment criteria of natural phenomena hazards are provided in draft DOE-STD-1023-XX.

Chen, J.C.; Lu, S.C.; Ueng, T.S.; Boissonnade, A.C.

1993-09-01

345

Hanford Site Environmental Report for Calendar Year 1999  

SciTech Connect

The Hanford Site environmental report is prepared annually to summarize environmental data and information, to describe environmental management performance, to demonstrate the status of compliance with environmental regulations, and to highlight major environmental programs and efforts.

Poston, Ted M.; Hanf, Robert W.; Dirkes, Roger L.

2000-09-28

346

Hanford Site Environmental Report for Calendar Year 2000  

SciTech Connect

This Hanford Site environmental report is prepared annually to summarize environmental data and information, to describe environmental management performance, to demonstrate the status of compliance with environmental regulations, and to highlight major environmental programs and efforts.

Poston, Ted M.; Hanf, Robert W.; Dirkes, Roger L.; Morasch, Launa F.

2001-09-25

347

60 Great Internet Sites for Math, Reading, and Language Arts.  

ERIC Educational Resources Information Center

This book rates 60 selected Web sites that focus on three core K-12 content areas--math, reading, and language arts. The introduction summarizes the quality criteria for the site ratings and selection, lists recommended software and plug-ins for viewing Web sites, provides tips on Internet navigation, and offers guidelines for Internet safety. The…

Treadwell, Mark

348

Summary of the Hanford Site environmental report for calendar year 1996  

SciTech Connect

This report summarizes the 420-page Hanford Site Environmental Report for Calendar Year 1996. The Hanford Site environmental report is prepared annually to summarize environmental data and information, describe environmental management performance, demonstrate the status of compliance with environmental regulations, and highlight major environmental programs and efforts. The summary is designed to briefly: describe the Hanford Site and its mission; summarize the status in 1996 of compliance with environmental regulations; describe environmental programs at the Hanford Site; discuss estimated radionuclide exposure to the public from 1996 Hanford Site activities; present information on effluent monitoring and environmental surveillance, including groundwater protection and monitoring; and discuss activities to ensure quality.

Hanf, R.W.; O`Connor, G.P.; Dirkes, R.L. [eds.] [comps.

1997-08-01

349

RCRA Facility Investigation/Remedial Investigation Report for the Grace Road Site (631-22G)  

SciTech Connect

This report summarizes the activities and documents the results of a Resource Conservation and Recovery Act Facility Investigation/Remedial Investigation conducted at Grace Road Site on the Savannah River Site near Aiken, South Carolina.

Palmer, E.

1998-10-02

350

Site characterization criteria (DOE-STD-1022-94) for natural phenomena hazards at DOE sites  

SciTech Connect

This paper briefly summarizes requirements of site characterization for Natural Phenomena Hazards (NPH) at DOE sites. In order to comply with DOE Order 5480.28, site characterization criteria has been developed to provide site-specific information needed for development of NPH assessment criteria. Appropriate approaches are outlined to ensure that the current state-of-the-art methodologies and procedures are used in the site characterization. General and detailed site characterization requirements are provided in the areas of meteorology, hydrology, geology, seismology and geotechnical studies.

Chen, J.C.; Ueng, T.S.; Boissonnade, A.C.

1995-12-01

351

Acoustic Noise Test Report for the Viryd CS8 Wind Turbine  

SciTech Connect

This report summarizes the results of an acoustic noise test that the National Renewable Energy Laboratory (NREL) conducted on the Viryd CS8 wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 11: Acoustic Noise Measurement Techniques, IEC 61400-11 Ed.2.1, 2006-11. However, because the Viryd CS8 is a small turbine, as defined by IEC, NREL used 10-second averages instead of 60-second averages and binning by wind speed instead of regression analysis.

Roadman, J.; Huskey, A.

2013-07-01

352

Acoustic Noise Test Report for the SWIFT Wind Turbine in Boulder, CO  

SciTech Connect

This report summarizes the results of an acoustic noise test that the National Renewable Energy Laboratory (NREL) conducted on the SWIFT wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 11: Acoustic Noise Measurement Techniques, IEC 61400-11 Ed.2.1, 2006-11. However, because the SWIFT is a small turbine, as defined by IEC, NREL used 10-second averages instead of 60-second averages and utilized binning by wind speed instead of regression analysis.

Roadman, J.; Huskey, A.

2013-04-01

353

Power Performance Test Report for the SWIFT Wind Turbine  

SciTech Connect

This report summarizes the results of a power performance test that NREL conducted on the SWIFT wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 12: Power Performance Measurements of Electricity Producing Wind Turbines, IEC 61400-12-1 Ed.1.0, 2005-12. However, because the SWIFT is a small turbine as defined by IEC, NREL also followed Annex H that applies to small wind turbines. In these summary results, wind speed is normalized to sea-level air density.

Mendoza, I.; Hur, J.

2012-12-01

354

Analysis of the Use of Wind Energy to Supplement the Power Needs at McMurdo Station and Amundsen-Scott South Pole Station, Antarctica (Poster)  

SciTech Connect

This poster summarizes the analysis of the inclusion of wind-driven power generation technology into the existing diesel power plants at two U.S. Antarctic research stations, McMurdo and Amundsen-Scott South Pole Station. Staff at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) conducted the analysis. Available data were obtained on the wind resources, power plant conditions, load, and component cost. We then used NREL's Hybrid2 power system modeling software to analyze the potential and cost of using wind turbine generators at the two aforementioned facilities.

Baring-Gould, E. I.; Robichaud, R.; McLain, K.

2005-05-01

355

Behavioral Summarized Evaluation: An Assessment Tool to Enhance Multidisciplinary and Parent-Professional Collaborations in Assessing Symptoms of Autism  

Microsoft Academic Search

The Behavioral Summarized Evaluation (BSE) was developed by Barthelemy and colleagues (Barthelemy et al., 1990; Barthelemy et al., 1997) for professionals and paraprofessionals to assess autism symptom severity over the course of treatment. The purpose of this article is to review empirical literature examining the utility of this psychometric instrument in research and clinical practice, with an emphasis on the

Roger N. Reeb; Susan F. Folger; Brent J. Oneal

2009-01-01

356

Statement Summarizing Research Findings on the Issue of the Relationship Between Food-Additive-Free Diets and Hyperkinesis in Children.  

ERIC Educational Resources Information Center

The National Advisory Committee on Hyperkinesis and Food Additives paper summarized some research findings on the issue of the relationship between food-additive-free diets and hyperkinesis in children. Based on several challenge studies, it is concluded that the evidence generally refutes Dr. B. F. Feingold's claim that artificial colorings in…

Lipton, Morris; Wender, Esther

357

Pavement Smoothness for Illinois DOT -Doug Dirks 1. Briefly summarize your current pavement smoothness requirements. See below.  

E-print Network

Pavement Smoothness for Illinois DOT - Doug Dirks 1. Briefly summarize your current pavement? N/A Illinois has both standard specifications and a special provision for pavement smoothness-Depth HMA Pavement 407.09 PCC Pavement 420.10 The following is a link to Division 400 of the Illinois

358

The Effect of Summarization on Intermediate EFL Learners' Reading Comprehension and Their Performance on Display, Referential and Inferential Questions  

ERIC Educational Resources Information Center

This study examined the effect of summarization as a generative learning strategy of the readers' performance on reading comprehension, in general, and reading comprehension display, referential and inferential questions in particular. The subjects in this study were 61 high school students. They were assigned to two groups--control and…

Ghabanchi, Zargham; Mirza, Fateme Haji

2010-01-01

359

Oceanography Vol. 19, No. 1, Mar. 2006172 T H I S R E P O RT summarizes goals,  

E-print Network

Oceanography Vol. 19, No. 1, Mar. 2006172 T H I S R E P O RT summarizes goals, activities Malanotte-Rizzoli is Professor of Physical Oceanography, Massachusetts In- stitute of Technology, Cambridge, MA, USA. Detlef Stammer is Professor of Physical Oceanography, Universität Hamburg, Germany. James

Leonard, John J.

360

Upper Cervical Chiropractic Care for a Patient with Chronic Migraine Headaches with an Appendix Summarizing an Additional 100 Headache Cases  

Microsoft Academic Search

Objective: To review the effectiveness of chiropractic care us- ing an upper cervical technique in the case of a 35-year-old female who presented with chronic daily tension and migraine headaches, and to summarize, in an Appendix, the examination findings and results for 100 additional chronic headache cases. Clinical Features: At age 23, the patient, a professional ice skater, sustained a

Erin L. Elster

2003-01-01

361

Summary of some feasibility studies for site-specific solar industrial process heat  

SciTech Connect

Some feasibility studies for several different site specific solar industrial process heat applications are summarized. The followng applications are examined. Leather Tanning; Concrete Production: Lumber and Paper Processing; Milk Processing; Molding, Curing or Drying; Automobile Manufacture; and Food Processing and Preparation. For each application, site and process data, system design, and performance and cost estimates are summarized.

none,

1982-01-01

362

Ghost Sites  

NSDL National Science Digital Library

There is much on the Net that is living and vibrant, but there is also much that is dead, stuffed, or embalmed, as Steve Baldwin, former Pathfinder (discussed in the November 14, 1997 ScoutReport) writer likes to say. At this site Baldwin tracks notable embalmed, dead, or dying web sites. Each issue of Ghost Sites reviews five to ten such sites. Sites discussed include the latest Pathfinder out-of-date update on the Unibomber, the stillborn MecklerWeb, and Electric Minds (discussed in the November 22, 1996 Scout Report), abandoned by Howard Rheingold. Sites are rated from Dying in I.C.U. to Site is Stuffed, Embalmed and Ready for Internet Museum. Ironically, several of the sites discussed have been resurrected or metamorphosed since they were discussed, proving, if nothing else, that anything is possible in cyberspace. Note that clicking on discussed sites opens a new browser window.

363

Umatilla Satellite and Release Sites Project : Final Siting Report.  

SciTech Connect

This report presents the results of site analysis for the Umatilla Satellite and Release Sites Project. The purpose of this project is to provide engineering services for the siting and conceptual design of satellite and release facilities for the Umatilla Basin hatchery program. The Umatilla Basin hatchery program consists of artificial production facilities for salmon and steelhead to enhance production in the Umatilla River as defined in the Umatilla master plan approved in 1989 by the Northwest Power Planning Council. Facilities identified in the master plan include adult salmon broodstock holding and spawning facilities, facilities for recovery, acclimation, and/or extended rearing of salmon juveniles, and development of river sites for release of hatchery salmon and steelhead. The historic and current distribution of fall chinook, summer chinook, and coho salmon and steelhead trout was summarized for the Umatilla River basin. Current and future production and release objectives were reviewed. Twenty seven sites were evaluated for the potential and development of facilities. Engineering and environmental attributes of the sites were evaluated and compared to facility requirements for water and space. Site screening was conducted to identify the sites with the most potential for facility development. Alternative sites were selected for conceptual design of each facility type. A proposed program for adult holding facilities, final rearing/acclimation, and direct release facilities was developed.

Montgomery, James M.

1992-04-01

364

Nevada Test Site Environmental Report 2008 Attachment A: Site Description  

SciTech Connect

This attachment expands on the general description of the Nevada Test Site (NTS) presented in the Introduction to the Nevada Test Site Environmental Report 2008 (National Security Technologies, LLC [NSTec], 2009a). Included are subsections that summarize the site’s geological, hydrological, climatological, and ecological setting. The cultural resources of the NTS are also presented. The subsections are meant to aid the reader in understanding the complex physical and biological environment of the NTS. An adequate knowledge of the site’s environment is necessary to assess the environmental impacts of new projects, design and implement environmental monitoring activities for current site operations, and assess the impacts of site operations on the public residing in the vicinity of the NTS. The NTS environment contributes to several key features of the site that afford protection to the inhabitants of adjacent areas from potential exposure to radioactivity or other contaminants resulting from NTS operations. These key features include the general remote location of the NTS, restricted access, extended wind transport times, the great depths to slow-moving groundwater, little or no surface water, and low population density. This attachment complements the annual summary of monitoring program activities and dose assessments presented in the main body of this report.

Cathy A. Wills

2009-09-01

365

Plasmid Transformation into DH5alpha E.coli cells using Heat Shock (by Manish, summarized from LIFE technologies protocol)  

E-print Network

Plasmid Transformation into DH5alpha E.coli cells using Heat Shock (by Manish, summarized from LIFE minutes 6. Heat shock for 20 seconds at 37C. 7. Place back on ice for 2 minutes. 8. Add 950 uL of SOC. If necessary to use more transformed cells, then centrifuge in the 1.5mL tube for 5 seconds and resuspend

Raizada, Manish N.

366

Mobile-Cloud Assisted Video Summarization Framework for Efficient Management of Remote Sensing Data Generated by Wireless Capsule Sensors  

PubMed Central

Wireless capsule endoscopy (WCE) has great advantages over traditional endoscopy because it is portable and easy to use, especially in remote monitoring health-services. However, during the WCE process, the large amount of captured video data demands a significant deal of computation to analyze and retrieve informative video frames. In order to facilitate efficient WCE data collection and browsing task, we present a resource- and bandwidth-aware WCE video summarization framework that extracts the representative keyframes of the WCE video contents by removing redundant and non-informative frames. For redundancy elimination, we use Jeffrey-divergence between color histograms and inter-frame Boolean series-based correlation of color channels. To remove non-informative frames, multi-fractal texture features are extracted to assist the classification using an ensemble-based classifier. Owing to the limited WCE resources, it is impossible for the WCE system to perform computationally intensive video summarization tasks. To resolve computational challenges, mobile-cloud architecture is incorporated, which provides resizable computing capacities by adaptively offloading video summarization tasks between the client and the cloud server. The qualitative and quantitative results are encouraging and show that the proposed framework saves information transmission cost and bandwidth, as well as the valuable time of data analysts in browsing remote sensing data. PMID:25225874

Mehmood, Irfan; Sajjad, Muhammad; Baik, Sung Wook

2014-01-01

367

Mobile-cloud assisted video summarization framework for efficient management of remote sensing data generated by wireless capsule sensors.  

PubMed

Wireless capsule endoscopy (WCE) has great advantages over traditional endoscopy because it is portable and easy to use, especially in remote monitoring health-services. However, during the WCE process, the large amount of captured video data demands a significant deal of computation to analyze and retrieve informative video frames. In order to facilitate efficient WCE data collection and browsing task, we present a resource- and bandwidth-aware WCE video summarization framework that extracts the representative keyframes of the WCE video contents by removing redundant and non-informative frames. For redundancy elimination, we use Jeffrey-divergence between color histograms and inter-frame Boolean series-based correlation of color channels. To remove non-informative frames, multi-fractal texture features are extracted to assist the classification using an ensemble-based classifier. Owing to the limited WCE resources, it is impossible for the WCE system to perform computationally intensive video summarization tasks. To resolve computational challenges, mobile-cloud architecture is incorporated, which provides resizable computing capacities by adaptively offloading video summarization tasks between the client and the cloud server. The qualitative and quantitative results are encouraging and show that the proposed framework saves information transmission cost and bandwidth, as well as the valuable time of data analysts in browsing remote sensing data. PMID:25225874

Mehmood, Irfan; Sajjad, Muhammad; Baik, Sung Wook

2014-01-01

368

Nevada Test Site Environmental Report 2005, Attachment A - Site Description  

SciTech Connect

This appendix to the ''Nevada Test Site Environmental Report 2005'', dated October 2006 (DOE/NV/11718--1214; DOE/NV/25946--007) expands on the general description of the Nevada Test Site (NTS) presented in the Introduction. Included are subsections that summarize the site?s geological, hydrological, climatological, and ecological setting. The cultural resources of the NTS are also presented. The subsections are meant to aid the reader in understanding the complex physical and biological environment of the NTS. An adequate knowledge of the site's environment is necessary to assess the environmental impacts of new projects, design and implement environmental monitoring activities for current site operations, and assess the impacts of site operations on the public residing in the vicinity of the NTS. The NTS environment contributes to several key features of the site which afford protection to the inhabitants of adjacent areas from potential exposure to radioactivity or other contaminants resulting from NTS operations. These key features include the general remote location of the NTS, restricted access, extended wind transport times, the great depths to slow-moving groundwater, little or no surface water, and low population density. This appendix complements the annual summary of monitoring program activities and dose assessments presented in the main body of this report.

Cathy A. Wills

2006-10-01

369

The Savannah River Site's Groundwater Monitoring Program  

SciTech Connect

This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted during the first quarter of 1992. It includes the analytical data, field data, data review, quality control, and other documentation for this program; provides a record of the program's activities; and serves as an official document of the analytical results.

Not Available

1992-08-03

370

The Savannah River Site's groundwater monitoring program  

SciTech Connect

This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted by EPD/EMS in the first quarter of 1991. In includes the analytical data, field data, data review, quality control, and other documentation for this program, provides a record of the program's activities and rationale, and serves as an official document of the analytical results.

Not Available

1991-10-18

371

Annual Site Environmental Report. Calendar Year 1997  

SciTech Connect

This report summarizes the environmental status of Ames Laboratory for calendar year 1997. It includes descriptions of the Laboratory site, its mission, the status of its compliance with applicable environmental regulations, its planning and activities to maintain compliance, and a comprehensive review of its environmental protection, surveillance and monitoring programs.

NONE

1997-12-01

372

Lawrence Berkeley Laboratory 1993 Site Environmental Report  

SciTech Connect

This annual Site Environmental Report summarizes Lawrence Berkeley Laboratory`s (LBL`s) environmental activities in calendar year (CY) 1993. The purpose of this report is to characterize site environmental management performance, confirm compliance status with environmental standards and requirements, and highlight significant programs and efforts. Its format and content are consistent with the requirements of the US Department of Energy (DOE) Order 5400.1, General Environmental Protection Program.

Not Available

1994-05-01

373

Fernald Environmental Management Project 1995 site environmental report summary  

SciTech Connect

This report summarizes the 1995 Site Environmental Report for the Fernald site. It describes the Fernald site mission, exposure pathways, and environmental standards and guidelines. An overview is presented of the impact these activities have on the local environment and public health. Environmental monitoring activities measure and estimate the amount of radioactive and nonradioactive materials that may leave the site and enter the surrounding environment.

NONE

1996-06-01

374

2006 SITE ENVIRONMENTAL REPORT  

SciTech Connect

Each year, Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health Reporting of the U.S. Department of Energy. The report is written to inform the public, regulators, employees, and other stakeholders of BNL's environmental performance during the calendar year in review. The SER summarizes environmental data; environmental management performance; compliance with applicable DOE, federal, state, and local regulations; and compliance, restoration, and surveillance monitoring program performance. BNL has prepared annual SERs since 1971 and has documented nearly all of its environmental history since the Laboratory's inception in 1947. The report is available in print and as a downloadable file on the BNL web page at http://www.bnl.gov/ewms/ser/. A summary of the SER is also prepared each year to provide a general overview of the report, and is distributed with a CD of the full report.

BROOKHAVEN NATIONAL LABORATORY; RATEL,K.

2007-10-01

375

2002 SITE ENVIRONMENTAL REPORT.  

SciTech Connect

The 2002 Site Environmental Report (SER) is prepared in accordance with DOE Order 231.1, ''Environment, Safety and Health Reporting'', and summarizes the status of Brookhaven National Laboratory's (BNL) environmental programs and performance and restoration efforts, as well as any impacts, both past and present, that Laboratory operations have had on the environment. The document is intended to be technical in nature. A summary of the report is also prepared as a separate document to provide a general overview and includes a CD version of the full report. Operated by Brookhaven Science Associates (BSA) for the Department of Energy (DOE), BNL manages its world-class scientific research with particular sensitivity to environmental and community issues. BNL's motto, ''Exploring Life's Mysteries...Protecting its Future'', reflects BNL's management philosophy to fully integrate environmental stewardship into all facets of its missions, with a health balance between science and the environment.

BROOKHAVEN NATIONAL LABORATORY

2003-10-01

376

2005 SITE ENVIRONMENTAL REPORT  

SciTech Connect

Each year, Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health Reporting of the U.S. Department of Energy (DOE). The report is written to inform the public, regulators, employees, and other stakeholders of BNL's environmental performance during the calendar year in review. The SER summarizes environmental data; environmental management performance; compliance with applicable DOE, federal, state, and local regulations; and compliance, restoration, and surveillance monitoring program performance. BNL has prepared annual SERs since 1971 and has documented nearly all of its environmental history since the Laboratory's inception in 1947. The report is available in print and as a downloadable file on the BNL web page at http://www.bnl.gov/ewms/ser/. A summary of the SER is also prepared each year to provide a general overview of the report, and is distributed with a CD of the full report.

BROOKHAVEN NATIONAL LABORATORY

2006-08-29

377

2009 Site Environmental Report  

SciTech Connect

Each year, Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health Reporting of the U.S. Department of Energy. The report is written to inform the public, regulators, employees, and other stakeholders of BNL's environmental performance during the calendar year in review. The SER summarizes environmental data; environmental management performance; compliance with applicable DOE, federal, state, and local regulations; and compliance, restoration, and surveillance monitoring program performance. BNL has prepared annual SERs since 1971 and has documented nearly all of its environmental history since the Laboratory's inception in 1947. The report is available in print and as a downloadable file on the BNL web page at http://www.bnl.gov/ewms/ser/. A summary of the SER is also prepared each year to provide a general overview of the report, and is distributed with a CD of the full report.

Ratel, K.M.; Brookhaven National Laboratory

2010-09-30

378

1999 SITE ENVIRONMENTAL REPORT  

SciTech Connect

Throughout the scientific community, Brookhaven National Laboratory (BNL) is renowned for its leading-edge research in physics, medicine, chemistry, biology, materials, and the environment. BNL is committed to supporting its world-class scientific research with an internationally recognized environmental protection program. The 1999 Site Environmental Report (SER) summarizes the status of the Laboratory's environmental programs and performance, including the steady progress towards cleaning up the site and fully integrating environmental stewardship into all facets of the Laboratory's mission. BNL is located on 5,265 acres of pine barrens in Suffolk County in the center of Long Island, New York. The Laboratory is situated above a sole source aquifer at the headwaters of the Peconic River; therefore, protecting ground and surface water quality is a special concern. Approximately 3,600 acres of the site are undeveloped and serve as habitat for a wide variety of animals and plants, including one New York State endangered species, the tiger salamander, and two New York State threatened species, the banded sunfish and the stiff goldenrod. Monitoring, preserving, and restoring these ecological resources is a high priority for the Laboratory.

ENGEL-COX,J.; ZIMMERMAN,E.; LEE,R.; WILLIAMS,J.; GREEN,T.; PAQUETTE,D.; HOODA,B.; SCARPITTA,S.; GENZER,P.; ET AL

2000-09-01

379

Health Care Transformation Through Collaboration on Open-Source Informatics Projects: Integrating a Medical Applications Platform, Research Data Repository, and Patient Summarization  

PubMed Central

Background The Strategic Health IT Advanced Research Projects (SHARP) program seeks to conquer well-understood challenges in medical informatics through breakthrough research. Two SHARP centers have found alignment in their methodological needs: (1) members of the National Center for Cognitive Informatics and Decision-making (NCCD) have developed knowledge bases to support problem-oriented summarizations of patient data, and (2) Substitutable Medical Apps, Reusable Technologies (SMART), which is a platform for reusable medical apps that can run on participating platforms connected to various electronic health records (EHR). Combining the work of these two centers will ensure wide dissemination of new methods for synthesized views of patient data. Informatics for Integrating Biology and the Bedside (i2b2) is an NIH-funded clinical research data repository platform in use at over 100 sites worldwide. By also working with a co-occurring initiative to SMART-enabling i2b2, we can confidently write one app that can be used extremely broadly. Objective Our goal was to facilitate development of intuitive, problem-oriented views of the patient record using NCCD knowledge bases that would run in any EHR. To do this, we developed a collaboration between the two SHARPs and an NIH center, i2b2. Methods First, we implemented collaborative tools to connect researchers at three institutions. Next, we developed a patient summarization app using the SMART platform and a previously validated NCCD problem-medication linkage knowledge base derived from the National Drug File-Reference Terminology (NDF-RT). Finally, to SMART-enable i2b2, we implemented two new Web service “cells” that expose the SMART application programming interface (API), and we made changes to the Web interface of i2b2 to host a “carousel” of SMART apps. Results We deployed our SMART-based, NDF-RT-derived patient summarization app in this SMART-i2b2 container. It displays a problem-oriented view of medications and presents a line-graph display of laboratory results. Conclusions This summarization app can be run in any EHR environment that either supports SMART or runs SMART-enabled i2b2. This i2b2 “clinical bridge” demonstrates a pathway for reusable app development that does not require EHR vendors to immediately adopt the SMART API. Apps can be developed in SMART and run by clinicians in the i2b2 repository, reusing clinical data extracted from EHRs. This may encourage the adoption of SMART by supporting SMART app development until EHRs adopt the platform. It also allows a new variety of clinical SMART apps, fueled by the broad aggregation of data types available in research repositories. The app (including its knowledge base) and SMART-i2b2 are open-source and freely available for download. PMID:23722634

McCoy, Allison B; Wright, Adam; Wattanasin, Nich; Sittig, Dean F; Murphy, Shawn N

2013-01-01

380

Opinion Integration and Summarization  

ERIC Educational Resources Information Center

As Web 2.0 applications become increasingly popular, more and more people express their opinions on the Web in various ways in real time. Such wide coverage of topics and abundance of users make the Web an extremely valuable source for mining people's opinions about all kinds of topics. However, since the opinions are usually expressed as…

Lu, Yue

2011-01-01

381

Video Summarization via Crowdsourcing  

E-print Network

-1-4503-0268-5/11/05. Shao-Yu Wu Institute of Information Science Academia Sinica 128 Academia Road, Section 2 Nankang-Ta Chen Institute of Information Science Academia Sinica 128 Academia Road, Section 2 Nankang, Taipei 115

Chen, Sheng-Wei

382

Closure report for housekeeping category, Corrective Action Unit 347, Nevada Test Site  

SciTech Connect

This Closure Report summarizes the corrective actions which were completed at the Corrective Action Sites within Corrective Action Unit 347 at the Nevada Test Site. Current site descriptions, observations and identification of wastes removed are included on FFACO Corrective Action Site housekeeping closure verification forms.

NONE

1998-01-01

383

Closure report for housekeeping category, Corrective Action Unit 354, Nevada Test Site  

SciTech Connect

This Closure Report summarizes the corrective actions which were completed at the Corrective Action Sites within Corrective Action Unit 354 at the Nevada Test Site. Current site descriptions, observations and identification of wastes removed are included on FFACO Corrective Action Site housekeeping closure verification forms.

NONE

1998-01-01

384

Closure report for housekeeping category, Corrective Action Unit 344, Nevada Test Site. Revision 1  

SciTech Connect

This Closure Report summarizes the corrective actions which were completed at the Corrective Action Sites within Corrective Action Unit 344 at the Nevada Test Site. Current site descriptions, observations and identification of wastes removed are included on FFACO Corrective Action Site housekeeping closure verification forms.

NONE

1997-09-01

385

Site Map  

Cancer.gov

Site Map Programs & Resources Research Groups Foundations of Prevention Biometry Publications Statistical Software About the Research Group Cancer Biomarkers Funding Opportunities Key Programs Meetings and Events Publications About

386

Meteorological aspects of siting large wind turbines  

SciTech Connect

This report, which focuses on the meteorological aspects of siting large wind turbines (turbines with a rated output exceeding 100 kW), has four main goals. The first is to outline the elements of a siting strategy that will identify the most favorable wind energy sites in a region and that will provide sufficient wind data to make responsible economic evaluations of the site wind resource possible. The second is to critique and summarize siting techniques that were studied in the Department of Energy (DOE) Wind Energy Program. The third goal is to educate utility technical personnel, engineering consultants, and meteorological consultants (who may have not yet undertaken wind energy consulting) on meteorological phenomena relevant to wind turbine siting in order to enhance dialogues between these groups. The fourth goal is to minimize the chances of failure of early siting programs due to insufficient understanding of wind behavior.

Hiester, T.R.; Pennell, W.T.

1981-01-01

387

Result Summary for the Area 5 Radioactive Waste Management Site Performance Assessment Model Version 4.113  

SciTech Connect

Preliminary results for Version 4.113 of the Nevada National Security Site Area 5 Radioactive Waste Management Site performance assessment model are summarized. Version 4.113 includes the Fiscal Year 2011 inventory estimate.

Shott, G. J.

2012-04-15

388

Nevada Test Site Environmental Report 2007 Attachment A: Site Description  

SciTech Connect

This appendix expands on the general description of the Nevada Test Site (NTS) presented in the Introduction to the Nevada Test Site Environmental Report 2007 (U.S. Department of Energy [DOE], 2008). Included are subsections that summarize the site's geological, hydrological, climatological, and ecological setting. The cultural resources of the NTS are also presented. The subsections are meant to aid the reader in understanding the complex physical and biological environment of the NTS. An adequate knowledge of the site's environment is necessary to assess the environmental impacts of new projects, design and implement environmental monitoring activities for current site operations, and assess the impacts of site operations on the public residing in the vicinity of the NTS. The NTS environment contributes to several key features of the site which afford protection to the inhabitants of adjacent areas from potential exposure to radioactivity or other contaminants resulting from NTS operations. These key features include the general remote location of the NTS, restricted access, extended wind transport times, the great depths to slow-moving groundwater, little or no surface water, and low population density. This attachment complements the annual summary of monitoring program activities and dose assessments presented in the main body of this report.

Cathy Wills

2008-09-01

389

Color intensity projections provides a fast, simple and robust method of summarizing the grayscale images from a renal scan in a single color image  

E-print Network

To assess its usefulness, the peak version of color intensity projections (CIPs) was used to display a summary of the grayscale images composing a renogram as a single color image. Method For each pixel in a renogram, the time point with the maximum intensity was used to control the hue of the color of the corresponding pixel in the CIPs image. The hue ranged over red-yellow-green-light blue-blue with red representing the earliest time. Results For subjects with normal appearing kidneys, the injection site shows up in red, the kidneys in a red-yellow and the bladder in a green-blue. A late fill kidney typically appeared greener or bluer than a normal kidney indicating it reached its peak intensity at a later time point than normal. Conclusions Having the time and intensity information summarized in a single image promises to speed up the initial impression of patients by less experienced interpreters and should also provide a valuable training tool.

Keith S Cover

2008-04-28

390

Value siting  

SciTech Connect

Finding an appropriate site is becoming an increasing challenge in building new power projects. One of the first orders of business in project development is identifying a site that offers the maximum spread between the cost of fuel and net power price. The collection of sites that exhibit an adequate spread - presenting a first-order, acceptable economic expectation - must now be subjected to an ever increasing number of political, societal, technical, and economic exclusion screens. The barriers can include cooling water constraints, community resistance, visual incompatibility, archaeological concerns and endangered species preservation issues. Most power siting difficulties can be substantially mitigated by gaining access to developed, but under-used sites, whose current owners are bound by circumstances - political or financial - that prevent them from using such locations. There are two such categories of sites: Utilities that have sites on which depreciated power production assets rest; and, The federal government, with numerous sites throughout the country, particularly military bases subject to closure under the Base Realignment and Closure (BRAC) proceedings. It is in the interests of developers, as well as consumers, investors and taxpayers, ti undertake a thorough examination of these overlooked pearls of opportunities and develop their potential.

Ferrar, T.A. [PRA Management Consultants, Atlanta, GA (United States); Howes, J.A. [Redland Energy Group, Arlington, VA (United States)

1995-02-01

391

Hanford Site environmental report for calendar year 1990  

SciTech Connect

The Hanford Site Environmental Report is prepared annually to summarize environmental data and information, describe environmental management performance, and demonstrate the status of compliance with environmental regulations. The report also highlights major environmental programs and efforts. The following sections: describe the Hanford Site and its new mission; summarize the status in 1990 of compliance with environmental regulations; describe the environmental programs at the Hanford Site; present information on environmental surveillance and the ground-water protection and monitoring program; and discuss activities to ensure quality.

Woodruff, R.K.; Hanf, R.W.; Hefty, M.G.; Lundgren, R.E. [eds.] [eds.

1991-12-20

392

Hanford Site Environmental Report for calendar year 1992  

SciTech Connect

This report is prepared annually to summarize environmental data and information, describe environmental management performance, and demonstrate the status of compliance with environmental regulations at the Hanford Site. The following sections: describe the Hanford Site and its mission; summarize the status in 1992 of compliance with environmental regulations; describe the environmental programs at the Hanford Site; discuss public dose estimates from 1992 Hanford activities; present information on effluent monitoring and environmental surveillance, including ground-water protection and monitoring, and discuss activities to ensure quality.

Woodruff, R.K.; Hanf, R.W.; Lundgren, R.E. [eds.

1993-06-01

393

Site Environmental Report for 2007 Volume I  

SciTech Connect

The Site Environmental Report is an integrated report on Berkeley Lab's environmental programs to satisfy the requirements of DOE Order 231.1A, Environment, Safety, and Health Reporting. It summarizes Berkeley Lab's environmental management performance, presents environmental monitoring results, and describes significant programs for calendar year 2007. Volume I is organized into an executive summary followed by six chapters that contain an overview of the Laboratory, a discussion of the Laboratory's environmental management system, the status of environmental programs, and summarized results from surveillance and monitoring activities.

Lackner, Regina E.; Baskin, David; Fox, Robert; Jelinski, John; Pauer, Ron; Thorson, Patrick; Wahl, Linnea

2008-09-15

394

Nevada Test Site 2008 Waste Management Monitoring Report Area 3 and Area 5 Radioactive Waste Management Sites  

SciTech Connect

Environmental monitoring data were collected at and around the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) at the Nevada Test Site. These data are associated with radiation exposure, air, groundwater, meteorology, vadose zone, subsidence, and biota. This report summarizes the 2008 environmental data to provide an overall evaluation of RWMS performance and to support environmental compliance and performance assessment (PA) activities.

NSTec Environmental Management

2009-06-23

395

Field Summary Report for Remedial Investigation of Hanford Site Releases to the Columbia River, Hanford Site, Washington  

SciTech Connect

This report summarizes field sampling activities conducted in support of WCH’s Remedial Investigation of Hanford Site Releases to the Columbia River. This work was conducted form 2008 through 2010. The work included preliminary mapping and measurement of Hanford Site contaminants in sediment, pore water, and surface water located in areas where groundwater upwelling were found.

L.C. Hulstrom

2010-08-11

396

Field Summary Report for Remedial Investigation of Hanford Site Releases to the Coumbia River, Hanford Site, Washington  

SciTech Connect

This report summarizes field sampling activities conducted in support of WCH’s Remedial Investigation of Hanford Site Releases to the Columbia River. This work was conducted form 2008 through 2010. The work included preliminary mapping and measurement of Hanford Site contaminants in sediment, pore water, and surface water located in areas where groundwater upwelling were found.

L.C. Hulstrom

2010-11-10

397

Electrical studies at the proposed Wahmonie and Calico Hills nuclear waste sites, Nevada Test Site, Nye Co., Nevada  

Microsoft Academic Search

These two sites in the southwest quadrant of NTS were investigated as potential repositories for high-level nuclear waste. The emplacement medium at both sites was to be an inferred intrusive body at shallow depth; the inference of the presence of the body was based on aeromagnetic and regional gravity data. This report summarizes results of Schlumberger VES, induced polarization dipole-dipole

D. B. Hoover; M. P. Chornack; K. H. Nervick; M. M. Broker

1982-01-01

398

Nevada Test Site 2009 Waste Management Monitoring Report Area 3 and Area 5 Radioactive Waste Management Sites  

Microsoft Academic Search

Environmental monitoring data were collected at and around the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) at the Nevada Test Site (NTS). These data are associated with radiation exposure, air, groundwater, meteorology, vadose zone, subsidence, and biota. This report summarizes the 2009 environmental data to provide an overall evaluation of RWMS performance and to support environmental compliance

NSTec Radioactive Waste

2010-01-01

399

The Savannah River Site`s Groundwater Monitoring Program. First quarter 1992  

SciTech Connect

This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted during the first quarter of 1992. It includes the analytical data, field data, data review, quality control, and other documentation for this program; provides a record of the program`s activities; and serves as an official document of the analytical results.

Not Available

1992-08-03

400

The Savannah River Site`s groundwater monitoring program. First quarter 1991  

SciTech Connect

This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted by EPD/EMS in the first quarter of 1991. In includes the analytical data, field data, data review, quality control, and other documentation for this program, provides a record of the program`s activities and rationale, and serves as an official document of the analytical results.

Not Available

1991-10-18

401

The Savannah River Site`s Groundwater Monitoring Program, First Quarter 1996, Volumes I and II  

SciTech Connect

This report summarizes the Savanna River Site (SRS) Groundwater Monitoring Program conducted by EPD/EMS during the first quarter 1996. It includes the analytical data, field data, data review, quality control, and other documentation for this program. It also provides a record of the program`s activities and serves as an official record of the analytical results.

Rogers, C.D. [Westinghouse Savannah River Company, AIKEN, SC (United States)

1996-10-22

402

2010 SITE ENVIRONMENTAL REPORTiii Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER)  

E-print Network

Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health in review. Volume I of the SER summarizes environmental data; environmental management performance and surveillance monitoring programs. BNL has prepared annual SERs since 1971 and has documented nearly all of its

403

2009 Site environmental reportiii Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER)  

E-print Network

Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health in review. Volume I of the SER summarizes environmental data; environmental management performance and surveillance monitoring programs. BNL has prepared annual SERs since 1971 and has documented nearly all of its

404

Probabilistic Evaluation of Wind Power Generation  

NASA Astrophysics Data System (ADS)

The power supplied by wind turbine generators (WTG) is widely random following the stochastic nature of weather conditions. For planning and decision making purposes, understanding and evaluation of the behaviour and distribution of WTG's output power are crucial. Monte Carlo simulation enables the realization of artificial futures by generating a huge number of sample paths of outcomes to perform this analysis. The paper presents an algorithm developed for a random wind speed generator governed by the probability density function of Weibull distribution and evaluates the WTG's output by using the power curve of wind turbines. The method may facilitate assessment of suitable turbine site as well as generator selection and sizing.

Muhamad Razali, N. M.; Misbah, Muizzuddin

2013-06-01

405

Network Wind Power Over the Pacific Northwest. Progress Report, October 1979-September 1980.  

SciTech Connect

The research in FY80 is composed of six primary tasks. These tasks include data collection and analysis, wind flow studies around an operational wind turbine generator (WTG), kite anemometer calibration, wind flow analysis and prediction, the Klickitat County small wind energy conversion system (SWECS) program, and network wind power analysis. The data collection and analysis task consists of four sections, three of which deal with wind flow site surveys and the fourth with collecting and analyzing wind data from existing data stations. This report also includes an appendix which contains mean monthly wind speed data summaries, wind spectrum summaries, time series analysis plots, and high wind summaries.

Baker, Robert W.; Hewson, E. Wendell

1980-10-01

406

Validity and reliability of the infant Behavioral Summarized Evaluation (IBSE): A rating scale for the assessment of young children with autism and developmental disorders  

Microsoft Academic Search

The Infant Behavioral Summarized Evaluation (IBSE) is a rating scale adapted from the Behavioral Summarized Evaluation (BSE) and specifically related to the assessment of behaviors of young children having autistic disorders. Content validity and reliability studies described in the paper were made from behavior ratings of videotapes for 89 children aged from 6 to 48 months. Results show a significant

J. L. Adrien; C. Barthélémy; A. Perrot; S. Roux; P. Lenoir; L. Hameury; D. Sauvage

1992-01-01

407

A Howardite-Eucrite-Diogenite (HED) Meteorite Compendium: Summarizing Samples of ASteroid 4 Vesta in Preparation for the Dawn Mission  

NASA Technical Reports Server (NTRS)

The Howardite-Eucrite-Diogenite (HED) suite of achondritic meteorites, thought to originate from asteroid 4 Vesta, has recently been summarized into a meteorite compendium. This compendium will serve as a guide for researchers interested in further analysis of HEDs, and we expect that interest in these samples will greatly increase with the planned arrival of the Dawn Mission at Vesta in August 2011. The focus of this abstract/poster is to (1) introduce and describe HED samples from both historical falls and Antarctic finds, and (2) provide information on unique HED samples available for study from the Antarctic Meteorite Collection at JSC, including the vesicular eucrite PCA91007, the olivine diogenite EETA79002, and the paired ALH polymict eucrites.

Garber, J. M.; Righter, K.

2011-01-01

408

2003 SITE ENVIRONMENTAL REPORT  

SciTech Connect

Each year, Brookhaven National Laboratory (BNL), a multi-program national laboratory, prepares an annual Site Environmental Report (SER) in accordance with Order 231.1A, Environment, Safety and Health Reporting, of the U.S. Department of Energy (DOE). The SER is written to inform outside regulators, the public, and Laboratory employees of BNL's environmental performance during the calendar year in review, and to summarize BNL's on-site environmental data; environmental management performance; compliance with applicable DOE, Environmental Protection Agency (EPA), state, and local regulations; and environmental, restoration, and surveillance monitoring programs. BNL has prepared annual SERs since 1971 and has documented nearly all of its environmental history since the Laboratory's inception in 1947. This report is intended to be a technical document. It is available in print and as a downloadable file on the BNL web page at http://www.bnl.ser.htm. A summary of the SER is also prepared each year to provide a general overview, and is distributed with a CD version of the full-length SER. The summary supports BNL's educational and community outreach program.

ENVIRONMENT AND WASTE MANAGMENT SERVICES DIVISION; ET AL.

2004-10-01

409

Offsite radiation doses summarized from Hanford environmental monitoring reports for the years 1957-1984. [Contains glossary  

SciTech Connect

Since 1957, evaluations of offsite impacts from each year of operation have been summarized in publicly available, annual environmental reports. These evaluations included estimates of potential radiation exposure to members of the public, either in terms of percentages of the then permissible limits or in terms of radiation dose. The estimated potential radiation doses to maximally exposed individuals from each year of Hanford operations are summarized in a series of tables and figures. The applicable standard for radiation dose to an individual for whom the maximum exposure was estimated is also shown. Although the estimates address potential radiation doses to the public from each year of operations at Hanford between 1957 and 1984, their sum will not produce an accurate estimate of doses accumulated over this time period. The estimates were the best evaluations available at the time to assess potential dose from the current year of operation as well as from any radionuclides still present in the environment from previous years of operation. There was a constant striving for improved evaluation of the potential radiation doses received by members of the public, and as a result the methods and assumptions used to estimate doses were periodically modified to add new pathways of exposure and to increase the accuracy of the dose calculations. Three conclusions were reached from this review: radiation doses reported for the years 1957 through 1984 for the maximum individual did not exceed the applicable dose standards; radiation doses reported over the past 27 years are not additive because of the changing and inconsistent methods used; and results from environmental monitoring and the associated dose calculations reported over the 27 years from 1957 through 1984 do not suggest a significant dose contribution from the buildup in the environment of radioactive materials associated with Hanford operations.

Soldat, J.K.; Price, K.R.; McCormack, W.D.

1986-02-01

410

The Hanford Site focus, 1994  

SciTech Connect

This report describes what the Hanford Site will look like in the next two years. We offer thumbnail sketches of Hanford Site programs and the needs we are meeting through our efforts. We describe our goals, some recent accomplishments, the work we will do in fiscal year (FY) 1994, the major activities the FY 1995 budget request covers, and the economic picture in the next few years. The Hanford Site budget shows the type of work being planned. US Department of Energy (DOE) sites like the Hanford Site use documents called Activity Data Sheets to meet this need. These are building blocks that are included in the budget. Each Activity Data Sheet is a concise (usually 4 or 5 pages) summary of a piece of work funded by the DOE`s Environmental Restoration and Waste Management budget. Each sheet describes a waste management or environmental restoration need over a 5-year period; related regulatory requirements and agreements; and the cost, milestones, and steps proposed to meet the need. The Hanford Site is complex and has a huge budget, and its Activity Data Sheets run to literally thousands of pages. This report summarizes the Activity Data Sheets in a less detailed and much more reader-friendly fashion.

Peterson, J.M.

1994-03-01

411

Hanford Site Environmental Report for Calendar Year 2002  

SciTech Connect

This report is prepared annually to satisfy the requirements of DOE Orders. The report provides an overview of activities at the Hanford Site during 2002 and demonstrates the site's compliance with applicable federal, state, and local environmental laws, regulations, executive orders, and DOE policies; and to summarize environmental data that characterize Hanford Site environmental management performance. The purpose of the report is to provide useful summary information to members of the public, public officials, regulators, Hanford contractors, and elected representatives.

Poston, Ted M.; Hanf, Robert W.; Dirkes, Roger L.; Morasch, Launa F.

2003-09-01

412

Site Investigation  

NSDL National Science Digital Library

Authors Clayton, Matthews and Simon offer their work, titled "Site Investigation," for free download. The text is broken up into chapters, and can be accessed together or separately. Additionally, users can also access a free copy of "Critical State Soil Mechanics" by authors Schofield and Wroth.

Clayton, C.R.I.

413

Site Accessibility  

Cancer.gov

The National Institutes of Health, NIH is making every effort to ensure that the information available on our website is accessible to all. If you use special adaptive equipment to access the Web and encounter problems when using our site, please let us know.

414

School Siting  

Microsoft Academic Search

Problem: The United States is embarking on an unprecedented era of school construction even as debate continues over where schools should be located and how much land they should occupy.Purpose: My three goals for this study were to trace the evolution of school siting standards, to explain the factors currently influencing school facility location decisions, and to identify what local

Noreen C. McDonald

2010-01-01

415

Summarizing techniques that combine three non-parametric scores to detect disease-associated 2-way SNP-SNP interactions.  

PubMed

Identifying susceptibility genes that influence complex diseases is extremely difficult because loci often influence the disease state through genetic interactions. Numerous approaches to detect disease-associated SNP-SNP interactions have been developed, but none consistently generates high-quality results under different disease scenarios. Using summarizing techniques to combine a number of existing methods may provide a solution to this problem. Here we used three popular non-parametric methods-Gini, absolute probability difference (APD), and entropy-to develop two novel summary scores, namely principle component score (PCS) and Z-sum score (ZSS), with which to predict disease-associated genetic interactions. We used a simulation study to compare performance of the non-parametric scores, the summary scores, the scaled-sum score (SSS; used in polymorphism interaction analysis (PIA)), and the multifactor dimensionality reduction (MDR). The non-parametric methods achieved high power, but no non-parametric method outperformed all others under a variety of epistatic scenarios. PCS and ZSS, however, outperformed MDR. PCS, ZSS and SSS displayed controlled type-I-errors (<0.05) compared to GS, APDS, ES (>0.05). A real data study using the genetic-analysis-workshop 16 (GAW 16) rheumatoid arthritis dataset identified a number of interesting SNP-SNP interactions. PMID:24076437

Sengupta Chattopadhyay, Amrita; Hsiao, Ching-Lin; Chang, Chien Ching; Lian, Ie-Bin; Fann, Cathy S J

2014-01-01

416

Neutron and X-Ray Effects on Small Intestine Summarized by Using a Mathematical Model or Paradigm  

NASA Astrophysics Data System (ADS)

The responses of intestinal tissues to ionizing radiation can be described by comparing irradiated cell populations qualitatively or quantitatively with corresponding controls. This paper describes quantitative data obtained from resin-embedded sections of neutron-irradiated mouse small intestine at different times after treatment. Information is collected by counting cells or structures present per complete circumference. The data are assessed by using standard statistical tests, which show that early mitotic arrest precedes changes in goblet, absorptive, endocrine and stromal cells and a decrease in crypt numbers. The data can also produce ratios of irradiated: control figures for cells or structural elements. These ratios, along with tissue area measurements, can be used to summarize the structural damage as a composite graph and table, including a total figure, known as the Morphological Index. This is used to quantify the temporal response of the wall as a whole and to compare the effects of different qualities of radiation, here X-ray and cyclotron-produced neutron radiations. It is possible that such analysis can be used predictively along with other reference data to identify the treatment, dose and time required to produce observed tissue damage.

Carr, K. E.; McCullough, J. S.; Nunn, S.; Hume, S. P.; Nelson, A. C.

1991-03-01

417

West Valley Demonstration Project Annual Site Environmental Report Calendar Year 2004  

SciTech Connect

Annual Site Environmental Report for the West Valley Demonstration Project (WVDP) for Calendar Year 2004. The report summarizes the environmental protection program at the West Valley Demonstration Project for CY 2004.

West Valley Nuclear Services Company (WVNSCO) and URS Group, Inc.

2005-09-30

418

APPLICATIONS ANALYSIS REPORT: BIOLOGICAL TREATMENT OF WOOD PRESERVING SITE GROUNDWATER BY BIOTROL, INC.  

EPA Science Inventory

This report is an evaluation of the Biotrol, Inc. Aqueous Treatment System (BATS), a fixed-film, aerobic biological treatment process for contaminated groundwaters and other wastewaters. t summarizes and analyzes the results of the Superfund Innovative Technology Evaluation (SITE...

419

Hanford Site Environmental Report for Calendar Year 2008  

SciTech Connect

The Hanford Site environmental report is prepared annually for the U.S. Department of Energy (DOE) in accordance with regulatory requirements. The report provides an overview of activities at the Hanford Site; demonstrates the status of the site’s compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and DOE policies and directives; and summarizes environmental data that characterize Hanford Site environmental management performance. The report also highlights significant environmental and public protection programs and efforts. Some historical and early 2009 information is included where appropriate.

Poston, Ted M.; Duncan, Joanne P.; Dirkes, Roger L.

2009-09-15

420

Hanford Site Environmental Report for Calendar Year 2009  

SciTech Connect

The Hanford Site environmental report is prepared annually for the U.S. Department of Energy (DOE) in accordance with regulatory requirements. The report provides an overview of activities at the Hanford Site; demonstrates the status of the site’s compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and DOE policies and directives; and summarizes environmental data that characterize Hanford Site environmental management performance. The report also highlights significant environmental and public protection programs and efforts. Some historical and early 2010 information is included where appropriate.

Poston, Ted M.; Duncan, Joanne P.; Dirkes, Roger L.

2010-09-01

421

Hanford Site Environmental Report for Calendar Year 2007  

SciTech Connect

The Hanford Site environmental report is prepared annually for the U.S. Department of Energy (DOE) in accordance with regulatory requirements. The report provides an overview of activities at the site; demonstrates the status of the site’s compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and DOE policies and directives; and summarizes environmental data that characterize Hanford Site environmental management performance. The report also highlights signifi cant environmental and public protection programs and efforts. Some historical and early 2008 information is included where appropriate.

Poston, Ted M.; Duncan, Joanne P.; Dirkes, Roger L.

2008-06-05

422

[Odor pollution from landfill sites and its control: a review].  

PubMed

Landfill sites are the major sources of offensive odor in urban public facilities. With the progress of urbanization and the residents' demands for a higher living environment quality, the odor emission from landfill sites has become a severe pollution problem, and the odor control at landfill sites has been one of the research hotspots. This paper summarized the main components and their concentrations of the odor from landfill sites, and expatiated on the research progress in the in-situ control of the odor. The further research directions in in-situ control of the odor from landfill sites were prospected. PMID:20560339

Hu, Bin; Ding, Ying; Wu, Wei-Xiang; Hu, Bei-Gang; Chen, Ying-Xu

2010-03-01

423

Hanford Site environmental report for calendar year 1991  

SciTech Connect

This report of the Hanford Reservation is prepared annually to summarize environmental data and information, describe environmental management performance, and demonstrate the status of compliance with environmental regulations. The report also highlights major environmental programs and efforts. The following sections: describe the Hanford Site and its mission; summarize the status in 1991 of compliance with environmental regulations; describe the environmental programs at the Hanford Site; present information on environmental surveillance and the ground-water protection and monitoring program; and discuss activities to ensure quality.

Woodruff, R.K.; Hanf, R.W.; Lundgren, R.E. (eds.)

1992-06-01

424

Hanford Site environmental report for calendar year 1995  

SciTech Connect

The Hanford Site Environmental Report is prepared annually to summarize environmental data and information, describe environmental management performance, and demonstrate the status of compliance with environmental regulations. It also highlights environmental programs and efforts. It is written to meet reporting requirements and guidelines of DOE and to meet the needs of the public. Individual sections are designed to describe the Hanford Site and its mission, summarize the status in 1995 of compliance, describe the environmental programs, discuss estimated radionuclide exposure to the public from 1995 Hanford activities, present information on effluent monitoring and environmental surveillance (including ground- water protection and monitoring), and discuss activities to ensure quality.

Dirkes, R.L.; Hanf, R.W. [eds.] [Pacific Northwest National Lab., Richland, WA (United States)] [eds.; Pacific Northwest National Lab., Richland, WA (United States)

1996-06-01

425

Site environmental report for calendar year 1996: Yucca Mountain site, Nye County, Nevada  

SciTech Connect

The environmental program established by the Yucca Mountain Site Characterization Office (YMSCO) has been designed and implemented to protect, maintain, and restore environmental quality, minimize potential threats to the environment and the public, and comply with environmental policies and US Department of Energy (DOE) Orders. In accordance with DOE Order 5400.1, General Environmental Protection Program (DOE, 1990a), to be superseded by DOE Order 231.1 (under review), the status of the Yucca Mountain Site Characterization Project (YMP) environmental program has been summarized in this annual Site Environmental Report (SER) to characterize performance, document compliance with environmental requirements, and highlight significant programs and efforts during calendar year 1996.

NONE

1997-11-01

426

Site characterization plan: Yucca Mountain site, Nevada research and development area, Nevada: Consultation draft, Nuclear Waste Policy Act: Volume 2  

SciTech Connect

The Yucca Mountain site in Nevada is one of three candidate sites for the first geologic repository for radioactive waste. On May 28, 1986, it was recommended for detailed study in a program of site characterization. This site characterization plan (SCP) has been prepared in accordance with the requirements of the Nuclear Waste Policy Act to summarize the information collected to date about the geologic conditions at the site; to describe the conceptual designs for the repository and the waste package and to present the plans for obtaining the geologic information necessary to demonstrate the suitability of the site for a repository, to design the repository and the waste package, to prepare an environmental impact statement, and to obtain from the US Nuclear Regulatory Commission (NRC) an authorization to construct the repository. Chapter 3 summarizes present knowledge of the regional and site hydrologic systems. The purpose of the information presented is to (1) describe the hydrology based on available literature and preliminary site-exploration activities that have been or are being performed and (2) provide information to be used to develop the hydrologic aspects of the planned site characterization program. Chapter 4 contains geochemical information about the Yucca Mountain site. The chapter references plan for continued collection of geochemical data as a part of the site characterization program. Chapter 4 describes and evaluates data on the existing climate and site meterology, and outlines the suggested procedures to be used in developing and validating methods to predict future climatic variation. 534 refs., 100 figs., 72 tabs.

NONE

1988-01-01

427

2007 Site Environmental Report  

SciTech Connect

Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health Reporting of the U.S. Department of Energy. The report is written to inform the public, regulators, employees, and other stakeholders of the Laboratory's environmental performance during the calendar year in review. Volume I of the SER summarizes environmental data; environmental management performance; compliance with applicable DOE, federal, state, and local regulations; and performance in restoration and surveillance monitoring programs. BNL has prepared annual SERs since 1971 and has documented nearly all of its environmental history since the Laboratory's inception in 1947. Volume II of the SER, the Groundwater Status Report, also is prepared annually to report on the status of and evaluate the performance of groundwater treatment systems at the Laboratory. Volume II includes detailed technical summaries of groundwater data and its interpretation, and is intended for internal BNL users, regulators, and other technically oriented stakeholders. A brief summary of the information contained in Volume II is included in this volume in Chapter 7, Groundwater Protection. Both reports are available in print and as downloadable files on the BNL web page at http://www.bnl.gov/ewms/ser/. An electronic version on compact disc is distributed with each printed report. In addition, a summary of Volume I is prepared each year to provide a general overview of the report, and is distributed with a compact disc containing the-length report.

Ratel,K.

2008-10-01

428

2004 SITE ENVIRONMENTAL REPORT  

SciTech Connect

Each year, Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health Reporting of the U.S. Department of Energy (DOE). The SER is written to inform the public, regulators, Laboratory employees, and other stakeholders of BNL's environmental performance during the calendar year in review. The report summarizes BNL's environmental data; environmental management performance; compliance with applicable DOE, federal, state, and local regulations; and restoration and surveillance monitoring programs. BNL has prepared annual SERs since 1971 and has documented nearly all of its environmental history since the Laboratory's inception in 1947. The SER is intended to be a technical document. It is available in print and as a downloadable file on the BNL web page at http://www.bnl.gov/esd/SER.htm. A summary of the SER is also prepared each year to provide a general overview of the report, and is distributed with a CD version of the full report. The summary supports BNL's educational and community outreach program.

BROOKHAVEN NATIONAL LABORATORY; SER TEAM; ENVIRONMENTAL INFORMATION MANAGEMENT SERVICES GROUP; ENVIROMENTAL AND WASTE MANAGEMENT SERVICES DIVISION FIELD SAMPLING TEAM; (MANY OTHER CONTRIBUTORS)

2005-08-22

429

Site environmental report for calendar year 1996  

SciTech Connect

The purpose of this Site Environmental Report (SER) is to characterize site environmental management performance, confirm compliance with environmental standards and requirements, and highlight significant programs and efforts to the US Department of Energy (DOE) Strategic Petroleum Reserve (SPR). The SER, provided annually in accordance with DOE Order 5400.1, serves the public by summarizing monitoring data collected to assess how the SPR impacts the environment. The SER provides a balanced synopsis of non-radiological monitoring and regulatory compliance data and affirms that the SPR has been operating within acceptable regulatory limits.

NONE

1997-08-01

430

Nevada Test Site Environmental Report 2005  

SciTech Connect

The Nevada Test Site Environmental Report 2005 (NTSER) was prepared to meet the information needs of the public and the requirements and guidelines of the U.S. Department of Energy (DOE) for annual site environmental reports. Its purpose is to (1) report compliance status with environmental standards and requirements, (2) present results of environmental monitoring of radiological and nonradiological effluents, (3) report estimated radiological doses to the public from releases of radioactive material, (4) summarize environmental incidents of noncompliance and actions taken in response to them, (5) describe the NTS Environmental Management System and characterize its performance, and (6) highlight significant environmental programs and efforts.

Cathy A. Wills

2006-10-01

431

Improved ATLAS HammerCloud Monitoring for local Site Administration  

E-print Network

Every day hundreds of tests are run on the Worldwide LHC Computing Grid for the ATLAS, CMS, and LHCb experiments in order to evaluate the performance and reliability of the different computing sites. All this activity is steered, controlled, and monitored by the HammerCloud testing infrastructure. Sites with failing functionality tests are auto-excluded from the ATLAS computing grid, therefore it is essential to provide a detailed and well organized web interface for the local site administrators such that they can easily spot and promptly solve site issues. Additional functionalities have been developed to extract and visualize the most relevant information. The site administrators can now be pointed easily to major site issues which lead to site blacklisting as well as possible minor issues that are usually not conspicuous enough to warrant the blacklisting of a specific site, but can still cause undesired effects such as a non-negligible job failure rate. This contribution summarizes the different developm...

Boehler, Michael; The ATLAS collaboration; Hoenig, Friedrich; Legger, Federica

2015-01-01

432

Summarizing lecture: factors influencing enzymatic H-transfers, analysis of nuclear tunnelling isotope effects and thermodynamic versus specific effects  

PubMed Central

In the articles in this Discussion, a wide variety of topics are treated, including reorganization energy, initially introduced for electron transfers (‘environmentally assisted tunnelling’), nuclear tunnelling, H/D and C12/C13 kinetic isotope effects (KIEs), the effect of changes of distal and nearby amino acid residues using site-directed mutagenesis, and dynamics versus statistical effects. A coordinate-free form of semi-classical theory is used to examine topics on data such as tunnelling versus ‘over-the-barrier’ paths and temperature and pressure effects on KIEs. The multidimensional semi-classical theory includes classically allowed and classically forbidden transitions. More generally, we address the question of relating kinetic to thermodynamic factors, as in the electron transfer field, so learning about specific versus thermodynamic effects in enzyme catalysis and KIEs. PMID:16873131

Marcus, R.A

2006-01-01

433

Nevada National Security Site Environmental Report 2011  

SciTech Connect

This report was prepared to meet the information needs of the public and the requirements and guidelines of the U.S. Department of Energy (DOE) for annual site environmental reports. It was prepared by National Security Technologies, LLC (NSTec), for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO). This and previous years reports, called Annual Site Environmental Reports (ASERs), Nevada Test Site Environmental Reports (NTSERs), and, beginning in 2010, Nevada National Security Site Environmental Reports (NNSSERs), are posted on the NNSA/NSO website at http://www.nv.energy.gov/library/publications/aser.aspx. This NNSSER was prepared to satisfy DOE Order DOE O 231.1B, 'Environment, Safety and Health Reporting.' Its purpose is to (1) report compliance status with environmental standards and requirements, (2) present results of environmental monitoring of radiological and nonradiological effluents, (3) report estimated radiological doses to the public from releases of radioactive material, (4) summarize environmental incidents of noncompliance and actions taken in response to them, (5) describe the NNSA/NSO Environmental Management System and characterize its performance, and (6) highlight significant environmental programs and efforts. This NNSSER summarizes data and compliance status for calendar year 2011 at the Nevada National Security Site (NNSS) (formerly the Nevada Test Site) and its two support facilities, the North Las Vegas Facility (NLVF) and the Remote Sensing Laboratory-Nellis (RSL-Nellis). It also addresses environmental restoration (ER) projects conducted at the Tonopah Test Range (TTR). Through a Memorandum of Agreement, NNSA/NSO is responsible for the oversight of TTR ER projects, and the Sandia Site Office of NNSA (NNSA/SSO) has oversight of all other TTR activities. NNSA/SSO produces the TTR annual environmental report available at http://www.sandia.gov/news/publications/environmental/index.html.

Cathy Wills, ed

2012-09-12

434

Spaceliner Class Operability Gains Via Combined Airbreathing/ Rocket Propulsion: Summarizing an Operational Assessment of Highly Reusable Space Transports  

NASA Technical Reports Server (NTRS)

In discussing a new NASA initiative in advanced space transportation systems and technologies, the Director of the NASA Marshall Space Flight Center, Arthur G. Stephenson, noted that, "It would use new propulsion technology, air-breathing engine so you don't have to carry liquid oxygen, at least while your flying through the atmosphere. We are calling it Spaceliner 100 because it would be 100 times cheaper, costing $ 100 dollars a pound to orbit." While airbreathing propulsion is directly named, rocket propulsion is also implied by, "... while you are flying through the atmosphere." In-space final acceleration to orbital speed mandates rocket capabilities. Thus, in this informed view, Spaceliner 100 will be predicated on combined airbreathing/rocket propulsion, the technical subject of this paper. Interestingly, NASA's recently concluded Highly Reusable Space Transportation (HRST) study focused on the same affordability goal as that of the Spaceliner 100 initiative and reflected the decisive contribution of combined propulsion as a way of expanding operability and increasing the design robustness of future space transports, toward "aircraft like" capabilities. The HRST study built on the Access to Space Study and the Reusable Launch Vehicle (RLV) development activities to identify and characterize space transportation concepts, infrastructure and technologies that have the greatest potential for reducing delivery cost by another order of magnitude, from $1,000 to $100-$200 per pound for 20,000 lb. - 40.000 lb. payloads to low earth orbit (LEO). The HRST study investigated a number of near-term, far-term, and very far-term launch vehicle concepts including all-rocket single-stage-to-orbit (SSTO) concepts, two-stage-to-orbit (TSTO) concepts, concepts with launch assist, rocket-based combined cycle (RBCC) concepts, advanced expendable vehicles, and more far term ground-based laser powered launchers. The HRST study consisted of preliminary concept studies, assessments and analysis tool development for advanced space transportation systems, followed by end-to-end system concept definitions and trade analyses, specific system concept definition and analysis, specific key technology and topic analysis, system, operational and economics model development, analysis, and integrated assessments. The HRST Integration Task Force (HITF) was formed to synthesize study results in several specific topic areas and support the development of conclusions from the study: Systems Concepts Definitions, Technology Assessment, Operations Assessment, and Cost Assessment. This paper summarizes the work of the Operations Assessment Team: the six approaches used, the analytical tools and methodologies developed and employed, the issues and concerns, and the results of the assessment. The approaches were deliberately varied in measures of merit and procedure to compensate for the uncertainty inherent in operations data in this early phase of concept exploration. In general, rocket based combined cycle (RBCC) concepts appear to have significantly greater potential than all-rocket concepts for reducing operations costs.

Nix, Michael B.; Escher, William J. d.

1999-01-01

435

Hanford Site Environmental Report for Calendar Year 2010  

SciTech Connect

The Hanford Site environmental report is prepared annually for the U.S. Department of Energy (DOE) in accordance with regulatory requirements. The report provides an overview of activities at the Hanford Site; demonstrates the status of the site's compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and DOE policies and directives; and summarizes environmental data that characterize Hanford Site environmental management performance. The report also highlights significant environmental and public protection programs and efforts. Some historical and early 2011 information is included where appropriate.

Poston, Ted M.; Duncan, Joanne P.; Dirkes, Roger L.

2011-07-12

436

Summary of the Hanford Site Environmental Report for Calendar Year 2008  

SciTech Connect

This summary booklet summarizes the "Hanford Site Environmental Report for Calendar Year 2008." The Hanford Site environmental report, published annually since 1958, includes information and summary data that provide an overview of activities at the U.S. Department of Energy's (DOE) Hanford Site. The Hanford Site environmental report provides an overview of activities at the site; demonstrates the status of the site’s compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and DOE policies and directives; and summarizes environmental data that characterize Hanford Site environmental management performance. The report also highlights significant environmental and public protection programs and efforts. Some historical and early 2009 information is included where appropriate.

Duncan, Joanne P.; Poston, Ted M.; Dirkes, Roger L.

2009-09-15

437

Summary of the Hanford Site Environmental Report for Calendar Year 2009  

SciTech Connect

This summary booklet summarizes the "Hanford Site Environmental Report for Calendar Year 2009." The Hanford Site environmental report, published annually since 1958, includes information and summary data that provide an overview of activities at the U.S. Department of Energy's (DOE) Hanford Site. The Hanford Site environmental report provides an overview of activities at the site; demonstrates the status of the site’s compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and DOE policies and directives; and summarizes environmental data that characterize Hanford Site environmental management performance. The report also highlights significant environmental and public protection programs and efforts. Some historical and early 2010 information is included where appropriate.

Duncan, Joanne P.; Poston, Ted M.; Dirkes, Roger L.

2010-09-30

438

Summary of the Hanford Site Environmental Report for Calendar Year 2007  

SciTech Connect

This summary booklet summarizes the "Hanford Site Environmental Report for Calendar Year 2007." The Hanford Site environmental report, published annually since 1958, includes information and summary data that provide an overview of activities at the U.S. Department of Energy's (DOE) Hanford Site. The Hanford Site environmental report provides an overview of activities at the site; demonstrates the status of the site’s compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and DOE policies and directives; and summarizes environmental data that characterize Hanford Site environmental management performance. The report also highlights signifi cant environmental and public protection programs and efforts. Some historical and early 2008 information is included where appropriate.

Duncan, Joanne P.; Poston, Ted M.; Dirkes, Roger L.

2008-09-10

439

Site ID: 2.0056 Site Name: Verde Valley Site  

E-print Network

Site ID: 2.0056 Site Name: Verde Valley Site Site Number: n/a Alternate Name: Alternate Number in "A Dessicated Infant Burial from the Verde Valley, Arizona" by G.A. Wright, 1965 that the remains #: Field #: Quantity: Description: Individual #: 1 Object: Figurine 56998b n/a 4 woven cotton textile bands

Shyy, Wei

440

Bioterrorism Web Site Resources for Infectious Disease Clinicians and Epidemiologists  

Microsoft Academic Search

Finding bioterrorism-related information on the World Wide Web can be laborious. We hope to help readers find such information more easily by summarizing essential information in a consistent framework. A panel of 7 Centers for Disease Control and Prevention reviewers identified Web sites and evaluated them for sponsorship, mission, content usefulness, online ease of use, and adherence to commonly accepted

Natalie E. Ferguson; Lynn Steele; Carol Y. Crawford; Nathan L. Huebner; Jamila C. Fonseka; Jason C. Bonander; Matthew J. Kuehnert

2003-01-01

441

Ames Laboratory site environmental report, calendar year 1995  

SciTech Connect

This report summarizes the environmental status of Ames Laboratory for calendar year 1995. It includes descriptions of the Laboratory site, its mission, the status of its compliance with applicable environmental regulations, its planning and activities to maintain compliance, and a comprehensive review of its environmental protection, surveillance and monitoring programs.

NONE

1997-01-01

442

Assessment of launch site accommodations versus Spacelab payload requirements  

NASA Technical Reports Server (NTRS)

The Kennedy launch site capability for accommodating spacelab payload operations was assessed. Anomalies between facility accommodations and requirements for the Spacelab III (Strawman), OA Mission 83-2, Dedicated Life Sciences, and Combined Astronomy missions are noted. Recommendations for revision of the accommodations handbook are summarized.

1977-01-01

443

NEVADA TEST SITE EXPERIMENTAL FARM: SUMMARY REPORT 1963-1981  

EPA Science Inventory

This report summarizes the findings from experiments conducted at the Experimental Dairy Farm located on the Nevada Test Site. These experiments included the air-forage-cow-milk transport of the radioiodines, and the metabolism and milk transfer of other fission products and seve...

444

Approach for tank safety characterization of Hanford site waste  

Microsoft Academic Search

The overall approach and associated technical basis for characterizing Hanford Site waste to help identify and resolve Waste Tank Safety Program safety issues has been summarized. The safety issues include flammable gas, noxious vapors, organic solvents, condensed-phase exothermic reactions (ferrocyanide and organic complexants), criticality, high heat, and safety screening. For the safety issues involving chemical reactions (i.e., flammable gas, organic

J. E. Meacham; H. Babad; R. J. Cash; G. T. Dukelow; S. J. Eberlein; D. W. Hamilton; G. D. Johnson; J. W. Osborne; M. A. Payne; D. J. Sherwood

1995-01-01

445

Critical Evaluation of a Web Site: Elementary School Level  

NSDL National Science Digital Library

This is a checklist designed to help elementary school users critically evaluate web resources. By answering the questions in the checklist, students can then assess if the site would be a good one to use for their science research projects. There is a series of "How does it look?" questions and a series of "What did you learn?" questions that challenge students to think critically about what they are looking at and then summarize the effectiveness of the web site.

Kathleen Schrock

446

Critical Evaluation of a Web Site: Middle School Level  

NSDL National Science Digital Library

This is a checklist designed to help middle school users critically evaluate web resources. By answering the questions in the checklist, students can then assess if the site would be a good one to use for their science research projects. There is a series of "How does it look?" questions and a series of "What did you learn?" questions that challenge students to think critically about what they are looking at and then summarize the effectiveness of the web site.

Kathleen Schrock

447

Critical Evaluation of a Web Site: Secondary School Level  

NSDL National Science Digital Library

This is a checklist designed to help secondary school users critically evaluate web resources. By answering the questions in the checklist, students can then assess if the site would be a good one to use for their science research projects. There is a series of "How does it look?" questions and a series of "What did you learn?" questions that challenge students to think critically about what they are looking at and then summarize the effectiveness of the web site.

Kathleen Schrock

448

Hanford Site Groundwater Monitoring for Fiscal Year 2006  

SciTech Connect

This report presents the results of groundwater monitoring for FY 2006 on DOE's Hanford Site. Results of groundwater remediation, vadose zone monitoring, and characterization are summarized. DOE monitors groundwater at the Hanford Site to fulfill a variety of state and federal regulations, including the Atomic Energy Act (AEA), the Resource Conservation and Recovery Act (RCRA), the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), and Washington Administrative Code (WAC).

Hartman, Mary J.; Morasch, Launa F.; Webber, William D.

2007-03-01

449

The Savannah River Site`s Groundwater Monitoring Program: First quarter 1993, Volume 1  

SciTech Connect

This report summarizes the Savannah River Site (SRS) Groundwater Monitoring Program conducted by the Environmental Protection Department`s Environmental Monitoring Section (EPD/EMS) during the first quarter of 1993. It includes the analytical data, field data, data review, quality control, and other documentation for this program; provides a record of the program`s activities; and serves as an official document of the analytical results.

Rogers, C.D. [Westinghouse Savannah River Co., Aiken, SC (United States)

1993-08-01

450

The Savannah River Site`s Groundwater Monitoring Program. Fourth quarter 1992  

SciTech Connect

This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted by the Environmental Protection Department`s Environmental Monitoring Section (EPD/EMS) during the fourth quarter of 1992. It includes the analytical data, field data, data review, quality control, and other documentation for this program, provides a record of the program`s activities; and serves as an official document of the analytical results.

Not Available

1993-05-17

451

FEDERAL FINANCIAL AID UPDATE FOR 20122013 The following summarizes some of the major changes in the administration of the federal financial  

E-print Network

FEDERAL FINANCIAL AID UPDATE FOR 20122013 The following summarizes some of the major changes in the administration of the federal financial aid programs for the 20122013 academic year. Federal 1040 tax forms can no longer document prior year income for federal financial aid. The federal government no longer

Brinkmann, Peter

452

PORCINE EPIDEMIC DIARRHEA VIRUS (PEDV) TESTING SUMMARY REPORT This report summarizes NAHLN laboratory testing for porcine epidemic diarrhea virus (PEDV) and covers testing through  

E-print Network

PORCINE EPIDEMIC DIARRHEA VIRUS (PEDV) TESTING SUMMARY REPORT This report summarizes NAHLN laboratory testing for porcine epidemic diarrhea virus (PEDV) and covers testing through 2 in this report are provided at the end of this report. CRITICAL UPDATES Test Results This Week Cumulative PEDV

Blanchette, Robert A.

453

The recommendations can be summarized as follows: i) The young bulls should be used randomly with respect to mates, herds and regions.  

E-print Network

) and fertility of the daughters. 5) The calculation of a selection index is highly recommended. 6) SomeThe recommendations can be summarized as follows: i) The young bulls should be used randomly, performance test, fertility of the semen; from the progeny: lactation yield (milk, protein, fat), beef test

Paris-Sud XI, Université de

454

Annual Site Environmental Report of the Lawrence Berkeley Laboratory, calendar year 1991  

SciTech Connect

This Annual Site Environmental Report (ASER) summarizes LBL environmental activities in calendar year (CY) 1991. The purpose of this Report is to present summary environmental data in order to characterize site environmental management performance, confirm compliance with environmental standards and requirements, and highlight significant programs and efforts.

Pauer, R.O.; Schleimer, G.E.; Javendel, I. [eds.

1992-05-01

455

2002 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory  

SciTech Connect

The 2002 Wastewater Land Application site Performance Reports for the Idaho National Engineering and Environmental Laboratory describe site conditions for the facilities with State of Idaho Wastewater Land Application Permits. Permit-required monitoring data are summarized, and permit exceedences or environmental impacts relating to the operation of the facilities during the 2002 permit year are discussed.

Meachum, T.R.; Lewis, M.G.

2003-02-20

456

Animal investigation program for the Nevada Test Site: 1957-1981  

Microsoft Academic Search

This report summarizes the findings of the Animal Investigation Program from its initiation in 1957 to termination in 1981. The Program investigated the effects of nuclear testing at the Nevada Test Site on domestic and wild animals residing on, and in the vicinity of the Test Site. Claims of injury to animals were investigated and a routine program of collecting

D. D. Smith; S. C. Black

1984-01-01

457

APPLICATION ANALYSIS REPORT: SITE PROGRAM, CF SYSTEMS ORGANICS EXTRACTION SYSTEM, NEW BEDFORD, MA  

EPA Science Inventory

This report summarizes the results of a Superfund Innovative Technology Evaluation (SITE) demonstration of the CF Systems critical fluid organics extraction system at the New Bedford Harbor, Mass., Superfund site. t also provides a review of those conditions which this technology...

458

Annual Report - FY 1998, Shipments to and from the Nevada Test Site (NTS)  

SciTech Connect

This report summarizes waste shipments to the Nevada Test Site Radioactive Waste Management Sites at Area 3 and Area 5 during fiscal year 1998. In addition this report provides a summary evaluation of each shipping campaign by source (waste generator) which identifies observable incidents, if any, associated with the actual waste shipments.

U.S. Department of Energy, Nevada Operations Office

1999-02-01

459

Nevada National Security Site Environmental Report 2012 Attachment A: Site Description  

SciTech Connect

This attachment expands on the general description of the Nevada National Security Site (NNSS) presented in the Introduction to the Nevada National Security Site Environmental Report 2012 (National Security Technologies, LLC [NSTec], 2013). Included are subsections that summarize the site’s geological, hydrological, climatological, and ecological setting and the cultural resources of the NNSS. The subsections are meant to aid the reader in understanding the complex physical and biological environment of the NNSS. An adequate knowledge of the site’s environment is necessary to assess the environmental impacts of new projects, design and implement environmental monitoring activities for current site operations, and assess the impacts of site operations on the public residing in the vicinity of the NNSS. The NNSS environment contributes to several key features of the site that afford protection to the inhabitants of adjacent areas from potential exposure to radioactivity or other contaminants resulting from NNSS operations. These key features include the general remote location of the NNSS, restricted access, extended wind transport times, the great depths to slow-moving groundwater, little or no surface water, and low population density. This attachment complements the annual summary of monitoring program activities and dose assessments presented in the main body of this report.

Wills, Cathy A

2013-09-11

460

Nevada National Security Site Environmental Report 2013 Attachment A: Site Description  

SciTech Connect

This attachment expands on the general description of the Nevada National Security Site (NNSS) presented in the Introduction to the Nevada National Security Site Environmental Report 2012 (National Security Technologies, LLC [NSTec], 2013). Included are subsections that summarize the site’s geological, hydrological, climatological, and ecological setting and the cultural resources of the NNSS. The subsections are meant to aid the reader in understanding the complex physical and biological environment of the NNSS. An adequate knowledge of the site’s environment is necessary to assess the environmental impacts of new projects, design and implement environmental monitoring activities for current site operations, and assess the impacts of site operations on the public residing in the vicinity of the NNSS. The NNSS environment contributes to several key features of the site that afford protection to the inhabitants of adjacent areas from potential exposure to radioactivity or other contaminants resulting from NNSS operations. These key features include the general remote location of the NNSS, restricted access, extended wind transport times, the great depths to slow-moving groundwater, little or no surface water, and low population density. This attachment complements the annual summary of monitoring program activities and dose assessments presented in the main body of this report.

Wills, C.

2014-09-09

461

Site Environmental Report for 2011, Volumes 1& 2  

SciTech Connect

The Site Environmental Report for 2011 summarizes Berkeley Lab’s environmental management performance, presents environmental monitoring results, and describes significant programs for calendar year (CY) 2011. Throughout this report, “Berkeley Lab” or “LBNL” refers both to (1) the multiprogram scientific facility the UC manages and operates on the 202-acre university-owned site located in the hills above the UC Berkeley campus, and the site itself, and (2) the UC as managing and operating contractor for Ernest Orlando Lawrence Berkeley National Laboratory. The report is separated into two volumes. Volume I is organized into an executive summary followed by six chapters that include an overview of LBNL, a discussion of its Environmental Management System (EMS), the status of environmental programs, summarized results from surveillance and monitoring activities, and quality assurance (QA) measures. Volume II contains individual data results from surveillance and monitoring activities.

Baskin, David; Bauters, Tim; Borglin, Ned; Fox, Robert; Horst, Blair; Jelinski, John; Lackner, Ginny; Philliber, Jeff; Rothermich, Nancy; Thorson, Patrick; Wahl, Linnea; Xu, Suying

2012-09-12

462

Preliminary site characterization - final report  

SciTech Connect

This report summarizes the ecological unit reconnaissance conducted at the F-Area Burning/Rubble Pit(s) RCRA/CERCLA Unit (F-Area BRP) on August 30 and 31, 1993 as part of the RFI/RI baseline risk assessment for the waste unit The baseline risk assessment will assess the potential endangerment to human health and the environment associated with the unit and will be used to evaluate remediation criteria, if needed. The information presented in this report will be used in subsequent stages of the ecological risk assessment to refine the conceptual site model, assist in the selection of contaminants of concern, identify potential ecological receptors, and evaluate trophic relationships and other exposure pathways. The unit reconnaissance survey was conducted in accordance with Specification No. E-18272, Rev. 1 dated August 5, 1993, and the Draft {open_quotes}Ecological Risk Assessment Program Plan for Evaluation of Waste Sites on the Savannah River Site{close_quotes}. The objectives of the site reconnaissance were to: Assess the general characteristics of on-unit biological communities including mammals, birds, reptiles, amphibians, and any aquatic communities present. Determine the location, extent, and characteristics of on-unit ecological resources, such as forested areas and wetlands, that could serve as important wildlife habitat or provide other ecological functions. Identify any overt effects of contamination on biological communities. The field investigations included mapping and describing all wetland and terrestrial habitats; recording wildlife observations of birds, mammals, and reptiles; and investigating ecological resources in nearby downgradient and downstream areas which could be affected by mobile contaminants or future remedial actions. In preparation for the field investigation, existing unit information including aerial photographs and reports were reviewed to help identify and describe ecological resources at the waste unit.

Clark, D.; Smith, L.B.

1993-12-01

463

Nevada National Security Site Environmental Report 2010  

SciTech Connect

This NNSSER was prepared to satisfy DOE Order DOE O 231.1B, “Environment, Safety and Health Reporting.” Its purpose is to (1) report compliance status with environmental standards and requirements, (2) present results of environmental monitoring of radiological and nonradiological effluents, (3) report estimated radiological doses to the public from releases of radioactive material, (4) summarize environmental incidents of noncompliance and actions taken in response to them, (5) describe the NNSA/NSO Environmental Management System and characterize its performance, and (6) highlight significant environmental programs and efforts. This NNSSER summarizes data and compliance status for calendar year 2010 at the Nevada National Security Site (NNSS) (formerly the Nevada Test Site) and its two support facilities, the North Las Vegas Facility (NLVF) and the Remote Sensing Laboratory–Nellis (RSL-Nellis). It also addresses environmental restoration (ER) projects conducted at the Tonopah Test Range (TTR). Through a Memorandum of Agreement, NNSA/NSO is responsible for the oversight of TTR ER projects, and the Sandia Site Office of NNSA (NNSA/SSO) has oversight of all other TTR activities. NNSA/SSO produces the TTR annual environmental report available at http://www.sandia.gov/news/publications/environmental/index.html.

C. Wills, ed.

2011-09-13

464

Post-Closure Inspection, Sampling, and Maintenance Report for the Salmon, Mississippi, Site Calendar Year 2011  

SciTech Connect

This report summarizes the 2011 annual inspection, sampling, measurement, and maintenance activities performed at the Salmon, Mississippi, Site (Salmon site1). The draft Long-Term Surveillance and Maintenance Plan for the Salmon Site, Lamar County, Mississippi (DOE 2007) specifies the submittal of an annual report of site activities with the results of sample analyses. The Salmon site consists of 1,470 acres. The site is located in Lamar County, Mississippi, approximately 10 miles west of Purvis, Mississippi, and about 21 miles southwest of Hattiesburg, Mississippi.

None

2012-03-01

465

Savannah River Site environmental report for 1993 summary pamphlet  

SciTech Connect

This pamphlet summarizes the impact of 1993 Savannah River Site operations on the environment and the off-site public. It includes an overview of site operations; the basis for radiological and nonradiological monitoring; 1993 radiological releases and the resulting dose to the off-site population; and results of the 1993 nonradiological program. The Savannah River Site Environmental Report for 1993 describes the findings of the environmental monitoring program for 1993. The report contains detailed information about site operations,the environmental monitoring and surveillance programs, monitoring and surveillance results, environmental compliance activities, and special programs. The report is distributed to government officials, members of the US Congress, universities, government facilities, environmental and civic groups, the news media, and interested individuals.

Karapatakis, L.

1994-05-01

466

Annual Site Environmental Report: 2002  

SciTech Connect

This report provides information about environmental programs during 2002 at the Stanford Linear Accelerator Center (SLAC). Seasonal activities that span calendar years are also included. Production of an annual site environmental report (ASER) is a requirement established by the United States Department of Energy (DOE) for all management and operating (M&O) contractors throughout the DOE complex. SLAC is a federally-funded, research and development center with Stanford University as the M&O contractor. The most noteworthy information in this report is summarized in this section. This summary demonstrates the effective application of SLAC environmental management in meeting the site's integrated safety management system (ISMS) goals. For normal daily activities, all SLAC managers and supervisors are responsible for ensuring that proper procedures are followed so that worker safety and health are protected; the environment is protected; and compliance is ensured. Throughout 2002, SLAC focused on these activities through the SLAC management systems (described in Chapter 3). These systems were also the way SLAC approached implementing ''greening of the government'' initiatives such as Executive Order 13148. The management systems at SLAC are effective, supporting compliance with all relevant statutory and regulatory requirements. SLAC did not receive any notices of violation during 2002. In addition, many improvements were continued during 2002, in decreasing air emission rates, the storm drain system, groundwater restoration, and planning for a chemical management system to manage chemical use better.

Nuckolls, H.; /SLAC

2006-04-19

467

Lawrence Berkeley Laboratory 1994 site environmental report  

SciTech Connect

The 1994 Site Environmental Report summarizes environmental activities at Lawrence Berkeley Laboratory (LBL) for the calendar year (CY) 1994. The report strives to present environmental data in a manner that characterizes the performance and compliance status of the Laboratory`s environmental management programs when measured against regulatory standards and DOE requirements. The report also discusses significant highlight and planning efforts of these programs. The format and content of the report are consistent with the requirements of the U.S. Department of Energy (DOE) Order 5400.1, General Environmental Protection Program.

NONE

1995-05-01

468

Closure Report for Corrective Action Unit 107: Low Impact Soil Sites, Nevada Test Site, Nevada  

SciTech Connect

Corrective Action Unit (CAU) 107 is identified in the Federal Facility Agreement and Consent Order (FFACO) as 'Low Impact Soil Sites' and consists of the following 15 Corrective Action Sites (CASs), located in Areas 1, 2, 3, 4, 5, 9, 10, and 18 of the Nevada Test Site: CAS 01-23-02, Atmospheric Test Site - High Alt; CAS 02-23-02, Contaminated Areas (2); CAS 02-23-03, Contaminated Berm; CAS 02-23-10, Gourd-Amber Contamination Area; CAS 02-23-11, Sappho Contamination Area; CAS 02-23-12, Scuttle Contamination Area; CAS 03-23-24, Seaweed B Contamination Area; CAS 03-23-27, Adze Contamination Area; CAS 03-23-28, Manzanas Contamination Area; CAS 03-23-29, Truchas-Chamisal Contamination Area; CAS 04-23-02, Atmospheric Test Site T4-a; CAS 05-23-06, Atmospheric Test Site; CAS 09-23-06, Mound of Contaminated Soil; CAS 10-23-04, Atmospheric Test Site M-10; and CAS 18-23-02, U-18d Crater (Sulky). Closure activities were conducted from February through April 2009 according to the FFACO (1996; as amended February 2008) and Revision 1 of the Streamlined Approach for Environmental Restoration Plan for CAU 107 (U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office, 2009). The corrective action alternatives included No Further Action and Closure in Place with Administrative Controls. Closure activities are summarized.

NSTec Environmental Restoration

2009-06-01

469

Nevada National Security Site Environmental Report 2010, Attachment A: Site Description  

SciTech Connect

Introduction to the Nevada National Security Site Environmental Report 2010. Included are subsections that summarize the site’s geological, hydrological, climatological, and ecological setting and the cultural resources of the NNSS. The subsections are meant to aid the reader in understanding the complex physical and biological environment of the NNSS. An adequate knowledge of the site’s environment is necessary to assess the environmental impacts of new projects, design and implement environmental monitoring activities for current site operations, and assess the impacts of site operations on the public residing in the vicinity of the NNSS. The NNSS environment contributes to several key features of the site that afford protection to the inhabitants of adjacent areas from potential exposure to radioactivity or other contaminants resulting from NNSS operations. These key features include the general remote location of the NNSS, restricted access, extended wind transport times, the great depths to slow-moving groundwater, little or no surface water, and low population density. This attachment complements the annual summary of monitoring program activities and dose assessments presented in the main body of this report.

C. Wills, ed.

2011-09-13

470

Performance evaluation of the technical capabilities of DOE sites for disposal of mixed low-level waste: Volume 3, Site evaluations  

SciTech Connect

A team of analysts designed and conducted a performance evaluation to estimate the technical capabilities of fifteen Department of Energy sites for disposal of mixed low-level waste (i.e., waste that contains both low-level radioactive materials and hazardous constituents). Volume 1 summarizes the process for selecting the fifteen sites, the methodology used in the evaluation, and the conclusions derived from the evaluation. Volume 2 provides details about the site-selection process, the performance-evaluation methodology, and the overall results of the analysis. Volume 3 contains detailed evaluations of the fifteen sites and discussion of the results for each site.

Waters, R.D.; Gruebel, M.M. [eds.] [eds.

1996-03-01

471

Northeast Oregon Hatchery Project, Final Siting Report.  

SciTech Connect

This report presents the results of site analysis for the Bonneville Power Administration Northeast Oregon Hatchery Project. The purpose of this project is to provide engineering services for the siting and conceptual design of hatchery facilities for the Bonneville Power Administration. The hatchery project consists of artificial production facilities for salmon and steelhead to enhance production in three adjacent tributaries to the Columbia River in northeast Oregon: the Grande Ronde, Walla Walla, and Imnaha River drainage basins. Facilities identified in the master plan include adult capture and holding facilities; spawning incubation, and early rearing facilities; full-term rearing facilities; and direct release or acclimation facilities. The evaluation includes consideration of a main production facility for one or more of the basins or several smaller satellite production facilities to be located within major subbasins. The historic and current distribution of spring and fall chinook salmon and steelhead was summarized for the Columbia River tributaries. Current and future production and release objectives were reviewed. Among the three tributaries, forty seven sites were evaluated and compared to facility requirements for water and space. Site screening was conducted to identify the sites with the most potential for facility development. Alternative sites were selected for conceptual design of each facility type. A proposed program for adult holding facilities, final rearing/acclimation, and direct release facilities was developed.

Watson, Montgomery

1995-03-01

472

Tanks Focus Area site needs assessment FY 1998  

SciTech Connect

This report documents the process used by the Tanks Focus Area (TFA) to analyze and develop responses to technology needs submitted by four major US Department of Energy (DOE) sites with radioactive tank waste problems, and the initial results of the analysis. The sites are the Hanford Site, Idaho National Engineering and Environmental Laboratory (INEEL), Oak Ridge Reservation (ORR), and Savannah River Site (SRS). This document describes the TFA`s process of collecting site needs, analyzing them, and creating technical responses to the sites. It also summarizes the information contained within the TFA needs database, portraying information provided by four major DOE sites with tank waste problems. The overall TFA program objective is to deliver a tank technology program that reduces the current cost, and the operational and safety risks of tank remediation. The TFA`s continues to enjoy close, cooperative relationships with each site. During the past year, the TFA has fostered exchanges of technical information between sites. These exchanges have proven to be healthy for all concerned. The TFA recognizes that site technology needs often change, and the TFA must be prepared not only to amend its program in response, but to help the sites arrive at the best technical approach to solve revised site needs.

NONE

1998-03-01

473

Site Environmental Report for 2001  

SciTech Connect

The mission of Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) is to continue the long tradition of outstanding research that has made it a premier national and international multiprogram laboratory. In order to provide the highest degree of protection for the public and the environment, Berkeley Lab employs Integrated Safety Management (ISM). ISM is a comprehensive U.S. Department of Energy management system that involves five core functions (work planning, hazard and risk analysis, establishment of controls, work performance, and feedback and improvement). These five core functions are applied to all activities at Berkeley Lab. Laboratory activities are planned and conducted with full regard to protecting the public and the environment and complying with appropriate environmental laws and regulations. Both radiological and nonradiological activities are thoroughly monitored to assess their potential impact on public health and the environment. This annual Site Environmental Report covers activities for calendar year (CY) 2001. Volume I summarizes environmental protection performance and environmental monitoring activities. Volume II contains individual analytical data summarized in the first volume. Volume II is available on request. (For details, see the Preface.) Data are presented in the report using the International System of Units measuring system, more commonly referred to as the metric system. For the convenience of readers, both volumes of this report can be accessed on the Web from the Berkeley Lab Environmental Services home page, which is located at http://www.lbl.gov/ehs/esg. Readers are encouraged to comment on this report by completing either the survey card included with the distributed hard copy of the report or the survey form in the Web version of the report. The format and content of this report satisfy the requirements of United States Department of Energy (DOE) Order 231.1, Environment, Safety and Health Reporting,1 and the operating contract between the University of California Office of the President (UCOP) and DOE.

Pauer, Ron

2002-07-01

474

2010 Site Environmental Report  

SciTech Connect

Brookhaven National Laboratory (BNL) prepares an annual Site Environmental Report (SER) in accordance with DOE Order 231.1A, Environment, Safety and Health Reporting of the U.S. Department of Energy. The report is written to inform the public, regulators, employees, and other stakeholders of the Laboratory's environmental performance during the calendar year in review. Volume I of the SER summarizes environmental data; environmental management performance; compliance with applicable DOE, federal, state, and local regulations; and performance in restoration and surveillance monitoring programs. BNL has prepared annual SERs since 1971 and has documented nearly all of its environmental history since the Laboratory's inception in 1947. Volume II of the SER, the Groundwater Status Report, also is prepared annually to report on the status of and evaluate the performance of groundwater treatment systems at the Laboratory. Volume II includes detailed technical summaries of groundwater data and its interpretation, and is intended for internal BNL users, regulators, and other technically oriented stakeholders. A brief summary of the information contained in Volume II is included in Chapter 7, Groundwater Protection, of this volume. Both reports are available in print and as downloadable files on the BNL web page at http://www.bnl.gov/ewms/ser/. An electronic version on compact disc is distributed with each printed report. In addition, a summary of Volume I is prepared each year to provide a general overview of the report, and is distributed with a compact disc containing the full report. BNL is operated and managed for DOE's Office of Science by Brookhaven Science Associates (BSA), a partnership formed by Stony Brook University and Battelle Memorial Institute. For more than 60 years, the Laboratory has played a lead role in the DOE Science and Technology mission and continues to contribute to the DOE missions in energy resources, environmental quality, and national security. BNL manages its world-class scientific research with particular sensitivity to environmental issues and community concerns. The Laboratory's motto, 'Exploring Life's Mysteries...Protecting its Future,' and its Environmental, Safety, Security and Health Policy reflect the commitment of BNL's management to fully integrate environmental stewardship into all facets of its mission and operations.

Ratel, K.; Lee, R; Remien, J; Hooda, B; Green, T; Williams, J; Pohlot, P; Dorsch, W; Paquette, D; Burke, J

2011-10-01

475

Promoting Your Web Site.  

ERIC Educational Resources Information Center

Discussion of ways to promote sites on the World Wide Web focuses on how search engines work and how they retrieve and identify sites. Appropriate Web links for submitting new sites and for Internet marketing are included. (LRW)

Raeder, Aggi

1997-01-01

476

Mining and summarizing customer reviews  

Microsoft Academic Search

Merchants selling products on the Web often ask their customers to review the products that they have purchased and the associated services. As e-commerce is becoming more and more popular, the number of customer reviews that a product receives grows rapidly. For a popular product, the number of reviews can be in hundreds or even thousands. This makes it difficult

Minqing Hu; Bing Liu

2004-01-01

477

High compression rate text summarization  

E-print Network

This thesis focuses on methods for condensing large documents into highly concise summaries, achieving compression rates on par with human writers. While the need for such summaries in the current age of information overload ...

Branavan, Satchuthananthavale Rasiah Kuhan

2008-01-01

478

Music summarization using key phrases  

Microsoft Academic Search

Systems to automatically provide a representative summary or `key phrase' of a piece of music are described. For a `rock' song with `verse' and `chorus' sections, we aim to return the chorus or in any case the most repeated and hence most memorable section. The techniques are less applicable to music with more complicated structure although possibly our general framework

Beth Logan; Stephen Chu

2000-01-01

479

Summarizing my DHS Internship Experience  

SciTech Connect

In this paper, the author addresses four main topics: (1) A description of the topic of his internship at the U.S. Department of Homeland Security; (2) A description of his contributions to the project; (3) A discussion of research directions beneficial to the Department of Homeland Security (DHS); and (4) A discussion of the impact the internship experience had on his career aspirations. He feels the first three points can best be addressed using the contents of a paper his mentor, Dr. Tina Eliassi-Rad, and he have published based on their work this summer [Roberts and Eliassi-Rad, 2006]. Sections 2 - 5 are intended for this purpose and have been excerpted from that paper. He concludes this paper in Section 6 with a discussion of the fourth point.

Roberts, D L

2006-09-06

480

NGNP SITE 2 HAZARDS ASSESSMENT  

SciTech Connect

The Next Generation Nuclear Plant (NGNP) Project initiated at Idaho National Laboratory (INL) by the U.S. Department of Energy pursuant to the 2005 Energy Policy Act, is based on research and development activities supported by the Generation IV Nuclear Energy Systems Initiative. The principal objective of the NGNP Project is to support commercialization of the high temperature gas-cooled reactor (HTGR) technology. The HTGR is a helium-cooled and graphite-moderated reactor that can operate at temperatures much higher than those of conventional light water reactor (LWR) technologies. Accordingly, it can be applied in many industrial applications as a substitute for burning fossil fuels, such as natural gas, to generate process heat in addition to producing electricity, which is the principal application of current LWRs. Nuclear energy in the form of LWRs has been used in the U.S. and internationally principally for the generation of electricity. However, because the HTGR operates at higher temperatures than LWRs, it can be used to displace the use of fossil fuels in many industrial applications. It also provides a carbon emission-free energy supply. For example, the energy needs for the recovery and refining of petroleum, for the petrochemical industry and for production of transportation fuels and feedstocks using coal conversion processes require process heat provided at temperatures approaching 800 C. This temperature range is readily achieved by the HTGR technology. This report summarizes a site assessment authorized by INL under the NGNP Project to determine hazards and potential challenges that site owners and HTGR designers need to be aware of when developing the HTGR design for co-location at industrial facilities, and to evaluate the site for suitability considering certain site characteristics. The objectives of the NGNP site hazard assessments are to do an initial screening of representative sites in order to identify potential challenges and restraints to be addressed in design and licensing processes; assure the HTGR technology can be deployed at variety of sites for a range of applications; evaluate potential sites for potential hazards and describe some of the actions necessary to mitigate impacts of hazards; and, provide key insights that can inform the plant design process. The report presents a summary of the process methodology and the results of an assessment of hazards typical of a class of candidate sites for the potential deployment of HTGR reactor technology. The assessment considered health and safety, and other important siting characteristics to determine the potential impact of identified hazards and potential challenges presented by the location for this technology. A four reactor module nuclear plant (2000 to 2400 MW thermal), that co-generates steam, electricity for general use in the plant, and hot gas for use in a nearby chemical processing facility, to provide the requisite performance and reliability was assumed for the assessment.

Wayne Moe

2011-10-01

481

Technical summary of groundwater quality protection program at the Savannah River Site, 1952--1986. Volume 1, Site geohydrology and waste sites  

SciTech Connect

This report provides information regarding the status of and groundwater quality at the waste sites at the Department of Energy`s (DOE) Savannah River Site (SRS). Specific information provided for each waste site at SRS includes its location, size, inventory (when known), and history. Many waste sites at SRS are considered to be of little environmental concern because they contain nontoxic or inert material such as construction rubble and debris. Other waste sites, however, either are known to have had an effect on groundwater quality or are suspected of having the potential to affect groundwater. Monitoring wells have been installed at most of these sites; monitoring wells are scheduled for installation at the remaining sites. Results of the groundwater analyses from these monitoring wells, presented in the appendices, are used in the report to help identify potential contaminants of concern, if any, at each waste site. The list of actions proposed for each waste site in Christensen and Gordon`s 1983 report are summarized, and an update is provided for each site. Planned actions for the future are also outlined.

Heffner, J.D. [ed.] [Exploration Resources, Inc., Athens, GA (United States)

1991-11-01

482

Hanford Site Development Plan  

SciTech Connect

The Hanford Site Development Plan (Site Development Plan) is intended to guide the short- and long-range development and use of the Hanford Site. All acquisition, development, and permanent facility use at the Hanford Site will conform to the approved plan. The Site Development Plan also serves as the base document for all subsequent studies that involve use of facilities at the Site. This revision is an update of a previous plan. The executive summary presents the highlights of the five major topics covered in the Site Development Plan: general site information, existing conditions, planning analysis, Master Plan, and Five-Year Plan. 56 refs., 67 figs., 31 tabs.

Rinne, C.A.; Curry, R.H.; Hagan, J.W.; Seiler, S.W.; Sommer, D.J. (Westinghouse Hanford Co., Richland, WA (USA)); Yancey, E.F. (Pacific Northwest Lab., Richland, WA (USA))

1990-01-01

483

Nevada National Security Site Environmental Report 2011 Attachment A: Site Description  

SciTech Connect

This attachment expands on the general description of the Nevada National Security Site (NNSS) presented in the Introduction to the Nevada National Security Site Environmental Report 2011. Included are subsections that summarize the site's geological, hydrological, climatological, and ecological setting and the cultural resources of the NNSS. The subsections are meant to aid the reader in understanding the complex physical and biological environment of the NNSS. An adequate knowledge of the site's environment is necessary to assess the environmental impacts of new projects, design and implement environmental monitoring activities for current site operations, and assess the impacts of site operations on the public residing in the vicinity of the NNSS. The NNSS environment contributes to several key features of the site that afford protection to the inhabitants of adjacent areas from potential exposure to radioactivity or other contaminants resulting from NNSS operations. These key features include the general remote location of the NNSS, restricted access, extended wind transport times, the great depths to slow-moving groundwater, little or no surface water, and low population density. This attachment complements the annual summary of monitoring program activities and dose assessments presented in the main body of this report.

Cathy Wills, ed.

2012-09-12

484

The Savannah River Site's Groundwater Monitoring Program  

SciTech Connect

This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted in the fourth quarter of 1990. It includes the analytical data, field data, well activity data, and other documentation for this program, provides a record of the program's activities and rationale, and serves as an official document of the analytical results. The groundwater monitoring program includes the following activities: installation, maintenance, and abandonment of monitoring wells, environmental soil borings, development of the sampling and analytical schedule, collection and analyses of groundwater samples, review of analytical and other data, maintenance of the databases containing groundwater monitoring data, quality assurance (QA) evaluations of laboratory performance, and reports of results to waste-site facility custodians and to the Environmental Protection Section (EPS) of EPD.

Not Available

1991-06-18

485

The Savannah River Site's Groundwater Monitoring Program  

SciTech Connect

This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted in the first quarter of 1990. It includes the analytical data, field data, well activity data, and the other documentation for this program and provides a record of the program's activities and rationale and an official document of the analytical results. The groundwater monitoring program includes the following activities: installation, maintenance, and abandonment of monitoring wells, environmental soil borings, development of the sampling and analytical schedule, collection and analyses of groundwater samples, review of the analytical data and other data, maintenance of the databases containing groundwater monitoring data and related data, quality assurance (QA) evaluations of laboratory performance, and reports of results to waste-site facility custodians and to the Environmental Protection Section (EPS) of EPD.

Not Available

1990-10-18

486

Paducah Site 1997 annual environmental report  

SciTech Connect

The Paducah Gaseous Diffusion Plant, located in McCracken County, Kentucky, has been producing enriched uranium since 1952. In July 1993, the US Department of Energy (DOE) leased the production areas of the site to the US Enrichment Corporation (USEC). A subsidiary of Lockheed Martin Corporation, Lockheed Martin Utility Services, manages the leased facilities for USEC. The DOE maintains responsibility for the environmental restoration, waste management, and depleted uranium hexafluoride cylinder program activities at the plant through its management contractor. The purpose of this document is to summarize calendar year 1997 environmental monitoring activities for DOE activities at the Paducah Site managed by Lockheed Martin Energy Systems. The DOE requires all of its facilities to conduct and document such activities annually. This report does not include USEC environmental activities.

NONE

1998-12-01

487

Paducah Site annual report for 1995  

SciTech Connect

The Paducah Gaseous Diffusion Plant, located in McCracken County, Kentucky, has been producing enriched uranium since 1952. In July 1993, the US department of Energy (DOE) leased the production areas of the site to the US Enrichment Corporation (USEC). A new subsidiary of Lockheed Martin Corporation, Lockheed Martin Utility Services, manages the leased facilities for USEC. DOE maintains responsibility for the environmental restoration, waste management, and enrichment facilities activities at the plant through its management contractor, Lockheed Martin Energy Systems. The purpose of this document is to summarize calendar year 1995 environmental monitoring activities for DOE activities at the Paducah Site. DOE requires all of its facilities to conduct and document such activities annually. This report does not include USEC environmental activities.

Belcher, G. [ed.

1997-01-01

488

Nevada National Security Site Environmental Report 2012  

SciTech Connect

This report was prepared to meet the information needs of the public and the requirements and guidelines of the U.S. Department of Energy (DOE) for annual site environmental reports. It was prepared by National Security Technologies, LLC (NSTec), for the U.S. Department of Energy, National Nuclear Security Administration Nevada Field Office (NNSA/NFO) (formerly designated as the Nevada Site Office [NNSA/NSO]). The new field office designation occurred in March 2013. Published reports cited in this 2012 report, therefore, may bear the name or authorship of NNSA/NSO. This and previous years’ reports, called Annual Site Environmental Reports (ASERs), Nevada Test Site Environmental Reports (NTSERs), and, beginning in 2010, Nevada National Security Site Environmental Reports (NNSSERs), are posted on the NNSA/NFO website at http://www.nv.energy.gov/library/publications/aser.aspx. This NNSSER was prepared to satisfy DOE Order DOE O 231.1B, “Environment, Safety and Health Reporting.” Its purpose is to (1) report compliance status with environmental standards and requirements, (2) present results of environmental monitoring of radiological and nonradiological effluents, (3) report estimated radiological doses to the public from releases of radioactive material, (4) summarize environmental incidents of noncompliance and actions taken in response to them, (5) describe the NNSA/NFO Environmental Management System and characterize its performance, and (6) highlight significant environmental programs and efforts. This NNSSER summarizes data and compliance status for calendar year 2012 at the Nevada National Security Site (NNSS) (formerly the Nevada Test Site) and its two support facilities, the North Las Vegas Facility (NLVF) and the Remote Sensing Laboratory–Nellis (RSL-Nellis). It also addresses environmental restoration (ER) projects conducted at the Tonopah Test Range (TTR) and the Nevada Test and Training Range (NTTR). Through a Memorandum of Agreement, NNSA/NFO is responsible for the oversight of these ER projects, and the Sandia Site Office of NNSA (NNSA/SSO) has oversight of all other TTR and NTTR activities. NNSA/SSO produces the TTR annual environmental report available at http://www.sandia.gov/news/publications/environmental/index.html.

Wills, Cathy

2013-09-11

489

Nevada Test Site Environmental Report 2007  

SciTech Connect

The Nevada Test Site Environmental Report 2007 (NTSER) was prepared to meet the information needs of the public and the requirements and guidelines of the U.S. Department of Energy (DOE) for annual site environmental reports. It was prepared by National Security Technologies, LLC (NSTec). This Executive Summary presents the purpose of the document, the major programs conducted at the Nevada Test Site (NTS), NTS key environmental initiatives, radiological releases and potential doses to the public resulting from site operations, a summary of nonradiological releases, implementation status of the NTS Environmental Management System, a summary of compliance with environmental regulations, pollution prevention and waste minimization accomplishments, and significant environmental accomplishments. Much of the content of this Executive Summary is also presented in a separate stand-alone pamphlet titled Nevada Test Site Environmental Report Summary 2007. This NTSER was prepared to satisfy DOE Order 231.1A, Environment, Safety and Health Reporting. Its purpose is to (1) report compliance status with environmental standards and requirements, (2) present results of environmental monitoring of radiological and nonradiological effluents, (3) report estimated radiological doses to the public from releases of radioactive material, (4) summarize environmental incidents of noncompliance and actions taken in response to them, (5) describe the NTS Environmental Management System and characterize its performance, and (6) highlight significant environmental programs and efforts. This report meets these objectives for the NTS and three offsite Nevada facilities mentioned in this report.

Cathy Wills

2008-09-01

490

Site Environmental Report for 2002, Volume 1  

SciTech Connect

Each year, Ernest Orlando Lawrence Berkeley National Laboratory prepares an integrated report on its environmental programs to satisfy the requirements of United States Department of Energy Order 231.1. The ''Site Environmental Report for 2002'' summarizes Berkeley Lab's compliance with environmental standards and requirements, characterizes environmental management efforts through surveillance and monitoring activities, and highlights significant programs and efforts for calendar year 2002. Throughout this report, Ernest Orlando Lawrence Berkeley National Laboratory is referred to as ''Berkeley Lab,'' ''the Laboratory,'' ''Lawrence Berkeley National Laboratory,'' and ''LBNL.'' The report is separated into two volumes. Volume I contains a general overview of the Laboratory, the status of environmental programs, and summarized results from surveillance and monitoring activities. Volume II contains individual data results from the monitoring programs. This year, the ''Site Environmental Report'' was distributed on a CD in PDF format that includes Volume I, Volume II, and related documents. The report is also available on the Web at http://www.lbl.gov/ehs/esg/. The report follows the Laboratory's policy of using the International System of Units (SI), also known as the metric system of measurements. Whenever possible, results are additionally reported using the more conventional (non-SI) system of measurements because this system is referenced by some current regulatory standards and is more familiar to some readers. The tables included at the end of the Glossary are intended to help readers understand the various prefixes used with SI units of measurement and convert these units from one system to the other.

Pauer, Ron

2003-07-01

491

Improving Web Site Design  

Microsoft Academic Search

lead to lost productivity and rev-enue. The question of how to improve the design of informational Web sites is thus of critical importance. Although most prominent Web sites are created by professional design firms, many smaller sites are built by people with little design experience or training. As a consequence, Web sites with local reach, such as those belonging to

Melody Y. Ivory; Marti A. Hearst

2002-01-01

492

Summary of atmospheric wind design criteria for wind energy conversion system development  

NASA Technical Reports Server (NTRS)

Basic design values are presented of significant wind criteria, in graphical format, for use in the design and development of wind turbine generators for energy research. It is a condensed version of portions of the Engineering Handbook on the Atmospheric Environmental Guidelines for Use in Wind Turbine Generator Development.

Frost, W.; Turner, R. E.

1979-01-01

493

A hybrid power system using alternative energy facilities in isolated island  

Microsoft Academic Search

A hybrid power system uses many wind turbine generators in isolated small islands. The output power of wind turbine generators is mostly fluctuating and has an effect on system frequency. In order to solve this problem, we propose a new power system using renewable energy in small, isolated islands. The system can supply high-quality power using an aqua electrolyzer, fuel

Tomonobu Senjyu; Toshiaki Nakaji; Katsumi Uezato; Toshihisa Funabashi

2005-01-01

494

Wind power collection and transmission with series connected current source converters  

Microsoft Academic Search

In this paper, series connected DC current source converter based Wind Turbine Generation System (WTGS) is proposed. Not only a multi-phase generator but also a group of wind turbine generator can be linked easily with multiple series connected current source converters. It is expected that the system can have higher availability and lower initial setup cost compared to conventional voltage

Hak-Jun Lee; Seung-Ki Sul

2011-01-01

495

76 FR 66064 - Notice of a Project Waiver of Section 1605 (Buy American Requirement) of the American Recovery...  

Federal Register 2010, 2011, 2012, 2013, 2014

...purchase of a foreign manufactured 50 kW wind turbine generator that meets the Borough's design...currently no domestic manufactured 50 kW wind turbines available in sufficient and reasonable...purchase of a foreign manufactured 50 kW wind turbine generator by the Borough, as...

2011-10-25

496

First International Workshop on Grid Simulator Testing of Wind Turbine Drivetrains: Workshop Proceedings  

SciTech Connect

This report summarizes the proceedings of the First International Workshop on Grid Simulator Testing of Wind Turbine Drivetrains, held from June 13 to 14, 2013, at the National Renewable Energy Laboratory's National Wind Technology Center, located south of Boulder, Colorado. The workshop was sponsored by the U.S. Department of Energy and cohosted by the National Renewable Energy Laboratory and Clemson University under ongoing collaboration via a cooperative research and development agreement. The purpose of the workshop was to provide a forum to discuss the research, testing needs, and state-of-the-art apparatuses involved in grid compliance testing of utility-scale wind turbine generators. This includes both dynamometer testing of wind turbine drivetrains ('ground testing') and field testing grid-connected wind turbines. Four sessions followed by discussions in which all attendees of the workshop were encouraged to participate comprised the workshop.

Gevorgian, V.; Link, H.; McDade, M.; Mander, A.; Fox, J. C.; Rigas, N.

2013-11-01

497

Hanford Site Development Plan  

SciTech Connect

The Hanford Site Development Plan (HSDP) provides an overview of land use, infrastructure, and facility requirements to support US Department of Energy (DOE) programs at the Hanford Site. The HSDP`s primary purpose is to inform senior managers and interested parties of development activities and issues that require a commitment of resources to support the Hanford Site. The HSDP provides an existing and future land use plan for the Hanford Site. The HSDP is updated annually in accordance with DOE Order 4320.1B, Site Development Planning, to reflect the mission and overall site development process. Further details about Hanford Site development are defined in individual area development plans.

Hathaway, H.B.; Daly, K.S.; Rinne, C.A.; Seiler, S.W.

1993-05-01

498

Rocky Flats Plant Site Environmental Report: 1993 Highlights  

SciTech Connect

The Rocky Flats Plant Site Environmental Report provides summary information on the plant`s environmental monitoring programs and the results recorded during 1993. The report contains a compliance summary, results of environmental monitoring and other related programs, a review of environmental remediation activities, information on external gamma radiation dose monitoring, and radiation dose estimates for the surrounding population. This section provides an overview of these topics and summarizes more comprehensive discussions found in the main text of this annual report.

Not Available

1993-12-31

499

Hanford Site environmental report for calendar year 1996  

SciTech Connect

The Hanford Site environmental report is prepared annually to summarize environmental data and information, to describe environmental management performance, to demonstrate the status of compliance with environmental regulations, and to highlight major environmental programs and efforts. The report is written to meet requirements and guidelines of the U.S. Department of Energy (DOE) and to meet the needs of the public. This summary has been written with a minimum of technical terminology.

Dirkes, R.L.; Hanf, R.W. [eds.] [eds.

1997-08-01

500

Site Analysis Shadow Analysis Site Objectives  

E-print Network

Scheme 1 Scheme 2 #12;2 Sustainable Design Elements o Sola Tubes for Lighting o High-efficiency Lighting Response Design (Insulation, Site Orientation Considerations) o Local & Minimally Processed Materials o On ­ Site Rainwater Collection o Composting Toilets o Green Roof o Indigenous Landscape - Wetlands Building

Kyte, Michael