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1

Optimization Online - Lower Bounds and Exact Algorithms for the ...  

E-Print Network (OSTI)

Dec 16, 2013 ... Lower Bounds and Exact Algorithms for the Quadratic Minimum Spanning Tree Problem. Dilson Pereira(dilsonlucas ***at*** gmail.com)

Dilson Pereira

2013-12-16T23:59:59.000Z

2

Solutions diversification in a column generation algorithm  

E-Print Network (OSTI)

Solutions diversification in a column generation algorithm N. Touati a L. L´etocart a A. Nagih b a Column generation algorithms have been specially designed for solving mathemat- ical programs with a huge-based techniques. A more classical approach, known as "intensification", consists in inserting a set of columns

Létocart, Lucas

3

Obtaining Lower Bounds from the Progressive Hedging Algorithm ...  

E-Print Network (OSTI)

Oct 11, 2013 ... Note that the non-anticipativity constraints (15) define a ..... Complicating constraints are incurred by generator ... Next, we consider the interaction between PHA lower bound quality and .... for assessing wind integration.

2014-01-21T23:59:59.000Z

4

Revisiting Algorithms for Generating Surrogate Time Series  

Science Journals Connector (OSTI)

The method of surrogates is one of the key concepts of nonlinear data analysis. Here, we demonstrate that commonly used algorithms for generating surrogates often fail to generate truly linear time series. Rather, they create surrogate realizations with Fourier phase correlations leading to nondetections of nonlinearities. We argue that reliable surrogates can only be generated, if one tests separately for static and dynamic nonlinearities.

C. Rth, M. Gliozzi, I. E. Papadakis, and W. Brinkmann

2012-10-05T23:59:59.000Z

5

Hyperspectral Imaging: Training Algorithms & Data Generation  

E-Print Network (OSTI)

Hyperspectral Imaging: Training Algorithms & Data Generation REU Students: Ping Fung and Carl +exp[-2(( + s))1/2 D / 3]} 1-rlSI +(rl - SI )exp[-2(( + s))1/2 D / 3] Data Generation To apply our possible parameters is impractical, so we generate approximate spectra using a physical model based

Mountziaris, T. J.

6

Randomized Algorithms and Lower Bounds for Quantum Simulation  

E-Print Network (OSTI)

We consider deterministic and {\\em randomized} quantum algorithms simulating $e^{-iHt}$ by a product of unitary operators $e^{-iA_jt_j}$, $j=1,...,N$, where $A_j\\in\\{H_1,...,H_m\\}$, $H=\\sum_{i=1}^m H_i$ and $t_j > 0$ for every $j$. Randomized algorithms are algorithms approximating the final state of the system by a mixed quantum state. First, we provide a scheme to bound the trace distance of the final quantum states of randomized algorithms. Then, we show some randomized algorithms, which have the same efficiency as certain deterministic algorithms, but are less complicated than their opponentes. Moreover, we prove that both deterministic and randomized algorithms simulating $e^{-iHt}$ with error $\\e$ at least have $\\Omega(t^{3/2}\\e^{-1/2})$ exponentials.

Chi Zhang

2009-10-21T23:59:59.000Z

7

More wind generation means lower GHG emissions, right?  

SciTech Connect

The answer to what will be the net effect of an x percent increase in wind generation on GHG emissions in a given system is not a simple y percent -- but is likely to depend on many variables, assumptions, modeling, and number crunching. But the result is important, and hence there has been a flurry of contradictory studies, confusing policymakers and the general public alike. While one can certainly find exceptions, under most circumstances, more renewable generation can be expected to result in lower GHG emissions.

NONE

2010-11-15T23:59:59.000Z

8

Lower bounds to the spectral gap of Davies generators  

SciTech Connect

We construct lower bounds to the spectral gap of a family of Lindblad generators known as Davies maps. These maps describe the thermalization of quantum systems weakly coupled to a heat bath. The steady state of these systems is given by the Gibbs distribution with respect to the system Hamiltonian. The bounds can be evaluated explicitly, when the eigenbasis and the spectrum of the Hamiltonian is known. A crucial assumption is that the spectrum of the Hamiltonian is non-degenerate. Furthermore, we provide a counterexample to the conjecture, that the convergence rate is always determined by the gap of the associated Pauli master equation. We conclude that the full dynamics of the Lindblad generator has to be considered. Finally, we present several physical example systems for which the bound to the spectral gap is evaluated.

Temme, Kristan [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2013-12-15T23:59:59.000Z

9

Optimal Algorithms for Generating Discrete Random Variables with Changing Distributions  

E-Print Network (OSTI)

Optimal Algorithms for Generating Discrete Random Variables with Changing Distributions T. Hagerup arithmetic and the floor function, 3. generating a uniformly distributed real number between 0 and 1 K. Mehlhorn I. Munro Abstract We give optimal algorithms for generating discrete random variables

Mehlhorn, Kurt

10

Generating Fast Indulgent Algorithms Dan Alistarh1  

E-Print Network (OSTI)

, France Abstract. Synchronous distributed algorithms are easier to design and prove cor- rect than overhead in terms of time complexity in well-behaved executions. Our technique is based on a new. This line of research inspired the introduction of indulgent algo- rithms [1], i.e. algorithms

Paris-Sud XI, Université de

11

Asymptotic properties of some underdiagonal walks generation algorithms  

E-Print Network (OSTI)

to a random generator), the height of the walk at its last step and the maximum of the walk. We obtain various a linear algorithm for the random generation of single- rooted directed animals, whose #12;rst step is to generate an underdiagonal walk. In [2] they examine a more general class of underdiagonal walks made up

Louchard, Guy

12

The automatic generation of mutation operators for genetic algorithms  

Science Journals Connector (OSTI)

We automatically generate mutation operators for Genetic Algorithms (GA) and tune them to problem instances drawn from a given problem class. By so doing, we perform metalearning in which the base-level contains GAs (which learn about problem instances), ... Keywords: automatic design, genetic algorithms, genetic programming, hyper-heuristics

John R. Woodward; Jerry Swan

2012-07-01T23:59:59.000Z

13

Search based algorithms for test sequence generation in functional testing  

Science Journals Connector (OSTI)

AbstractContext The generation of dynamic test sequences from a formal specification, complementing traditional testing methods in order to find errors in the source code. Objective In this paper we extend one specific combinatorial test approach, the Classification Tree Method (CTM), with transition information to generate test sequences. Although we use CTM, this extension is also possible for any combinatorial testing method. Method The generation of minimal test sequences that fulfill the demanded coverage criteria is an NP-hard problem. Therefore, search-based approaches are required to find such (near) optimal test sequences. Results The experimental analysis compares the search-based technique with a greedy algorithm on a set of 12 hierarchical concurrent models of programs extracted from the literature. Our proposed search-based approaches (GTSG and ACOts) are able to generate test sequences by finding the shortest valid path to achieve full class (state) and transition coverage. Conclusion The extended classification tree is useful for generating of test sequences. Moreover, the experimental analysis reveals that our search-based approaches are better than the greedy deterministic approach, especially in the most complex instances. All presented algorithms are actually integrated into a professional tool for functional testing.

Javier Ferrer; Peter M. Kruse; Francisco Chicano; Enrique Alba

2015-01-01T23:59:59.000Z

14

Optimization Algorithm for the Generation of ONCV Pseudopotentials  

E-Print Network (OSTI)

We present an optimization algorithm to construct pseudopotentials and use it to generate a set of Optimized Norm-Conserving Vanderbilt (ONCV) pseudopotentials for elements up to Z=83 (Bi) (excluding Lanthanides). We introduce a quality function that assesses the agreement of a pseudopotential calculation with all-electron FLAPW results, and the necessary plane-wave energy cutoff. This quality function allows us to use a Nelder-Mead optimization algorithm on a training set of materials to optimize the input parameters of the pseudopotential construction for most of the periodic table. We control the accuracy of the resulting pseudopotentials on a test set of materials independent of the training set. We find that the automatically constructed pseudopotentials provide a good agreement with the all-electron results obtained using the FLEUR code with a plane-wave energy cutoff of approximately 60 Ry.

Schlipf, Martin

2015-01-01T23:59:59.000Z

15

Future Generation Computer Systems 16 (2000) 851871 Ant algorithms and stigmergy  

E-Print Network (OSTI)

Future Generation Computer Systems 16 (2000) 851­871 Ant algorithms and stigmergy Marco Dorigoa Generation Computer Systems 16 (2000) 851­871 The term stigmergy was introduced by Grassé [39] to describe

Theraulaz, Guy

16

Generation of lower hybrid and whistler waves by an ion velocity ring distribution  

SciTech Connect

Using fully kinetic simulations in two and three spatial dimensions, we consider the generation and nonlinear evolution of lower hybrid waves produced by a cold ion ring velocity distribution in a low beta plasma. We show that the initial development of the instability is very similar in two and three dimensions and not significantly modified by electromagnetic effects, consistent with linear theory. At saturation, the level of electric field fluctuations is a small fraction of the background thermal energy; the electric field and corresponding density fluctuations consist of long, field-aligned striations. Energy extracted from the ring goes primarily into heating the background ions and the electrons at comparable rates. The initial growth and saturation of the magnetic components of the lower hybrid waves are related to the electric field components, consistent with linear theory. As the growing electric field fluctuations saturate, parallel propagating whistler waves develop by the interaction of two lower hybrid waves. At later times, these whistlers are replaced by longer wavelength, parallel propagating whistlers that grow through the decay of the lower hybrid fluctuations. Wave matching conditions demonstrate these conversion processes of lower hybrid waves to whistler waves. The conversion efficiency (=ratio of the whistler wave energy to the energy in the saturated lower hybrid waves) is computed and found to be significant ({approx}15%) for the parameters of the three-dimensional simulation (and even larger in the two-dimensional simulation), although when normalized in terms of the initial kinetic energy in the ring ions the overall efficiency is very small (<10{sup -4}). The results are compared with relevant linear and nonlinear theory.

Winske, D.; Daughton, W. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2012-07-15T23:59:59.000Z

17

Optimal Placement of Wind Generators in Medium Voltage Power Grids -- Investigations of Genetic Algorithm  

Science Journals Connector (OSTI)

The paper presents investigations of a genetic algorithm for computations of power losses in the MV power grid. In this case, the vector of start population PO0 and mutation likelihood was investigated. Diagrams of power losses in the grid dependent ... Keywords: genetic algorithm, wind generators, power grid, parallel processing, MPI

Andrzej Jordan; Carsten Maple; Ryszard Szczebiot; Lukasz Swierczewski

2011-04-01T23:59:59.000Z

18

An enhanced algorithm for protocol conformance test sequence generation based on the UIO method  

E-Print Network (OSTI)

An Enhanced Algorithm for Protocol Conformance Test Sequence Generation Based on the UIO Method. (December 1993) Ravindra Allada, B.E., Osmania University, Hyderabad, India Chair of Advisory Committee: Dr. Hosame Abu-Amara A computer protocol is a...

Allada, Ravindra

2012-06-07T23:59:59.000Z

19

An effective algorithm for mining closed sequential patterns and their minimal generators based on prefix trees  

Science Journals Connector (OSTI)

Sequential generator patterns and closed sequential patterns play an important role in data mining tasks. They are proposed to address difficult problems in mining sequential pattern and have often been used together to generate non-redundant rules. Based on their important role, this paper proposes an efficient algorithm called CloGen for mining closed sequential patterns and their minimal sequential generator patterns. The CloGen algorithm uses the parent-child relationship on prefix tree structure and inserts fields into each node on prefix tree to determine whether that is a minimal sequential generator pattern or closed sequential pattern. Experimental results show that the performance runtime of CloGen algorithm is much faster than that of other algorithms by more than one order of magnitude.

Thi-Thiet Pham; Jiawei Luo; Bay Vo

2013-01-01T23:59:59.000Z

20

On the vanishing of the lower K-theory of the Holomorph of a free group on two generators.  

E-Print Network (OSTI)

We show that the holomorph of the free group on two generators satisfies the Farrell-Jones Fibered Isomorphism Conjecture. As a consequence, we show that the lower K-theory of the above group vanishes.

V. Metaftsis; S. Prassidis

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

A genetic algorithm approach to voltage-VAR control in systems with distributed generation  

Science Journals Connector (OSTI)

This paper presents a case study that highlights the influences which the connection of distributed generation sources may have over the solutions of reactive power compensation and voltage control already existing in a given network. The problem of ... Keywords: distributed generation, genetic algorithms, renewable sources, voltage-var control

Iulia Coroama; Mihai Gavrilas; Ovidiu Ivanov

2010-10-01T23:59:59.000Z

22

A Smart Algorithm for the Diagnosis of Short-Circuit Faults in a Photovoltaic Generator  

E-Print Network (OSTI)

A Smart Algorithm for the Diagnosis of Short-Circuit Faults in a Photovoltaic Generator Wail Rezgui observations distributed over classes is used for simulation purposes. Keywords--Photovoltaic generator, SVM, k-NN, short-circuit fault, smart classification, linear programming. NOMENCLATURE PV = Photovoltaic; SVM

Paris-Sud XI, Université de

23

Asymptotic, Algorithmic and Geometric Aspects of Groups Generated by Automata  

E-Print Network (OSTI)

: : : : : : : : : : : : : : : : : : : 98 24 Part of the spectrum of fM(y;z;?) : : : : : : : : : : : : : : : : : : : 104 25 Histogram of the spectrum on the 9th level : : : : : : : : : : : : : : 105 26 Symmetric automata generating the lamplighter group : : : : : : : : 120 1 CHAPTER I... states of a single automaton. The flrst self- similar example was provided by a 3-state automaton B3 over 2-letter alphabet whose Moore diagram is depicted in the left half of Figure 1, where = (1;2) denotes the nontrivial element of Sym(f1;2g...

Savchuk, Dmytro M.

2010-01-14T23:59:59.000Z

24

Algorithm for calculation of characterisitcs of thermionic electricity-generating assemblies  

SciTech Connect

A numerical algorithm has been developed for calculating the kinetic characteristics of electricity-generating coaxial cells and assemblies; it is based on separate solution of the equations describing the thermal and electrical processes with their subsequent coordination by way of the volt-ampere characteristics of an elementary thermionic converter by means of piecewise-linear approximation of the nonlinear characteristics at the operating points. The possibilities and advantages of the proposed calculation algorithm for investigation of the transients occurring in the course of operation of the electricity generating assemblies (EGA) are indicated. Results are reported for sample calculations of several EGA static and kinetic characteristics. 10 refs.

Babushkin, Yu.V.; Mendel'baum, M.A.; Savinov, A.P.; Sinyavskii, V.V.

1981-01-01T23:59:59.000Z

25

A Regression Algorithm for the Smart Prognosis of a Reversed Polarity Fault in a Photovoltaic Generator  

E-Print Network (OSTI)

A Regression Algorithm for the Smart Prognosis of a Reversed Polarity Fault in a Photovoltaic database containing sample data is used for simulation purposes. Keywords--Photovoltaic generator, SVR, k-NNR, reversed polarity fault, diagnosis, prognosis. NOMENCLATURE PV = Photovoltaic; SVM = Support Vector

Paris-Sud XI, Université de

26

Next-Generation Algorithms for Navigation, Geodesy and~Earth Sciences Under Modernized Global Navigation Satellite Systems (GNSS)  

Science Journals Connector (OSTI)

The project on Next-generation algorithms for navigation, geodesy and earth sciences under modernized Global Navigation Satellite Systems (GNSS) has been under development within the scope of the Geomatics f...

Marcelo C Santos; Richard B Langley; Rodrigo F Leandro

2009-01-01T23:59:59.000Z

27

Current generation by helicons and lower hybrid waves in modern tokamaks and reactors ITER and DEMO. Scenarios, modeling and antennae  

SciTech Connect

The innovative concept and 3D full-wave code modeling the off-axis current drive by radio-frequency (RF) waves in large-scale tokamaks, ITER and DEMO, for steady-state operation with high efficiency is proposed. The scheme uses the helicon radiation (fast magnetosonic waves at high (20-40) ion cyclotron frequency harmonics) at frequencies of 500-700 MHz propagating in the outer regions of the plasmas with a rotational transform. It is expected that the current generated by helicons, in conjunction with the bootstrap current, ensure the maintenance of a given value of the total current in the stability margin q(0) {>=} 2 and q(a) {>=} 4, and will help to have regimes with a negative magnetic shear and internal transport barrier to ensure stability at high normalized plasma pressure {beta}{sub N} > 3 (the so-called advanced scenarios) of interest for the commercial reactor. Modeling with full-wave three-dimensional codes PSTELION and STELEC showed flexible control of the current profile in the reactor plasmas of ITER and DEMO, using multiple frequencies, the positions of the antennae and toroidal wave slow down. Also presented are the results of simulations of current generation by helicons in the DIII-D, T-15MD, and JT-60AS tokamaks. Commercially available continuous-wave klystrons of the MW/tube range are promising for commercial stationary fusion reactors. The compact antennae of the waveguide type are proposed, and an example of a possible RF system for today's tokamaks is given. The advantages of the scheme (partially tested at lower frequencies in tokamaks) are a significant decline in the role of parametric instabilities in the plasma periphery, the use of electrically strong resonator-waveguide type antennae, and substantially greater antenna-plasma coupling.

Vdovin, V. L., E-mail: vdov@nfi.kiae.ru [National Research Centre 'Kurchatov Institute,' (Russian Federation)

2013-02-15T23:59:59.000Z

28

Optimal allocation of multi-type distributed generators using backtracking search optimization algorithm  

Science Journals Connector (OSTI)

Abstract In this article, a very recently swarm optimization technique namely a backtracking search optimization algorithm (BSOA) is addressed to assign the distributed generators (DGs) along radial distribution networks. One of the main features of the BSOA is a single control parameter and not over sensitive to the initial value of this factor. The objective function is adapted with weighting factor to reduce the network real loss and enhance the voltage profile with the purpose of improving the operating performance. In addition, the combined power factor and reduction in network reactive power loss are spotted. Set of fuzzy expert rules using loss sensitivity factors and bus voltages are employed to identify the initial DGs locations. The proposed approach is attuned to tackle the shortfall of loss sensitivity factors and to decide the final placement of the DGs. Two types of the \\{DGs\\} are studied and investigated. The proposed method is demonstrated and validated thru many radial distribution networks with different sizes and complexities. The BSOA-based methodology can efficiently generate high-quality solutions compared to other competitive techniques in the literature.

Attia El-Fergany

2015-01-01T23:59:59.000Z

29

A new HBMO algorithm for multiobjective daily Volt/Var control in distribution systems considering Distributed Generators  

Science Journals Connector (OSTI)

In recent years, Distributed Generators (DGs) connected to the distribution network have received increasing attention. The connection of enormous \\{DGs\\} into existing distribution network changes the operation of distribution systems. Because of the small X/R ratio and radial structure of distribution systems, \\{DGs\\} affect the daily Volt/Var control. This paper presents a new algorithm for multiobjective daily Volt/Var control in distribution systems including Distributed Generators (DGs). The objectives are costs of energy generation by \\{DGs\\} and distribution companies, electrical energy losses and the voltage deviations for the next day. A new optimization algorithm based on a Chaotic Improved Honey Bee Mating Optimization (CIHBMO) is proposed to determine the active power values of DGs, reactive power values of capacitors and tap positions of transformers for the next day. Since objectives are not the same, a fuzzy system is used to calculate the best solution. The plausibility of the proposed algorithm is demonstrated and its performance is compared with other methods on a 69-bus distribution feeder. Simulation results illustrate that the proposed algorithm has better outperforms the other algorithms.

Taher Niknam

2011-01-01T23:59:59.000Z

30

A general algorithm to generate unweighted events for next-to-leading order calculations in electron-positron annihilation  

E-Print Network (OSTI)

Given a next-to-leading order calculation, we show how to set up a computer program, which generates a sequence of unweighted momentum configurations, each configuration containing either n or n+1 four-vectors, such that for any infrared safe observable the average over these configurations coincides with the NLO calculation up to errors of order y_res. The core of the algorithm is a method to combine real emission and virtual corrections on a point-by-point basis in hard phase space. The algorithm can be implemented on top of existing NLO calculations.

Stefan Weinzierl

2001-06-14T23:59:59.000Z

31

IEEE TRANSACTIONS ON NEURAL NETWORKS, VOL. 17, NO. 3, MAY 2006 771 On Algorithmic Rate-Coded AER Generation  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON NEURAL NETWORKS, VOL. 17, NO. 3, MAY 2006 771 On Algorithmic Rate-Coded AER of frames into the spike event-based representation known as the address-event-rep- resentation (AER). In this paper we concentrate on rate-coded AER. The problem is addressed as an algorithmic problem, in which

Barranco, Bernabe Linares

32

Development and comparison of algorithms for generating a scan sequence for a random access scanner. [ZAP (and flow charts for ZIP and SCAN), in FORTRAN for DEC-10  

SciTech Connect

Many data acquisition systems incorporate high-speed scanners to convert analog signals into digital format for further processing. Some systems multiplex many channels into a single scanner. A random access scanner whose scan sequence is specified by a table in random access memory will permit different scan rates on different channels. Generation of this scan table can be a tedious manual task when there are many channels (e.g. 50), when there are more than a few scan rates (e.g. 5), and/or when the ratio of the highest scan rate to the lowest scan rate becomes large (e.g. 100:1). An algorithm is developed which will generate these scan sequences for the random access scanner and implements the algorithm on a digital computer. Application of number theory to the mathematical statement of the problem led to development of several algorithms which were implemented in FORTRAN. The most efficient of these algorithms operates by partitioning the problem into a set of subproblems. Through recursion they solve each subproblem by partitioning it repeatedly into even smaller parts, continuing until a set of simple problems is created. From this process, a pictorial representation or wheel diagram of the problem can be constructed. From the wheel diagram and a description of the original problem, a scan table can be constructed. In addition, the wheel diagram can be used as a method of storing the scan sequence in a smaller amount of memory. The most efficient partitioning algorithm solved most scan table problems in less than a second of CPU time. Some types of problems, however, required as much as a few minutes of CPU time. 26 figures, 2 tables.

Eason, R. O.

1980-09-01T23:59:59.000Z

33

Application of fuzzy logic control algorithm as stator power controller of a grid-connected doubly-fed induction generator  

Science Journals Connector (OSTI)

This paper discusses the power outputs control of a grid-connected doubly-fed induction generator (DFIG) for a wind power generation systems. The DFIG structure control has a six diode rectifier ... order to cont...

Ridha Cheikh; Arezki Menacer; Said Drid; Mourad Tiar

2013-03-01T23:59:59.000Z

34

A Gravitational Search Algorithm (GSA) based Photo-Voltaic (PV) excitation control strategy for single phase operation of three phase wind-turbine coupled induction generator  

Science Journals Connector (OSTI)

Abstract Three phase induction generators are widely used for single phase operation in wind based micro-generation schemes to cater single phase loads due to various advantages. This paper presents an improved control methodology for self excited three phase induction generator operating in single phase mode. The excitation is controlled through an inverter with Photo-Voltaic (PV) panels providing power to the dc bus. The proposed technique enables the generator for building up voltage from low wind speeds compared to conventional three phase machines. A capacitor connected across load terminals reduces the reactive power supplied by the inverter connected across the other two phases. Gravitational search algorithm (GSA) is used to calculate the switching angles of the inverter under various load and wind speeds for minimum Total Harmonic Distortion (THD) of the generated voltage. The proposed induction generator is aimed to be conveniently used in remote and grid isolated areas as a portable source of electrical power driving single phase loads. Simulations and experiments performed on a 3-phase 1kW, 415V, 50Hz, 1440r/min induction machine validates the proposed concept.

Arunava Chatterjee; Krishna Roy; Debashis Chatterjee

2014-01-01T23:59:59.000Z

35

Fifth International Conference on Document Analysis and Recognition (ICDAR99), Bangalore, India, 1999, pp. 173-176 A Two-step Algorithm and its Parallelization for the Generation of Minimum  

E-Print Network (OSTI)

, 1999, pp. 173-176 A Two-step Algorithm and its Parallelization for the Generation of Minimum Containing. This reduces resource requirements and speeds up the subsequent rectangle detection step. The rectangle that completely encloses a geometric pattern. In this paper, we present a two-step MCR detection algorithm and its

Sural, Shamik

36

Optimization of high-order harmonic generation by genetic algorithm and wavelet time-frequency analysis of quantum dipole emission  

E-Print Network (OSTI)

-order har- monic generation ~HHG! of orders as high as 300 has been observed @5,6#, with photon energies in excess of 500 eV. A novel concept of intra-atomic phase matching has been recently introduced, allowing the enhancement of the inten- sity of a..., as shown in Fig. 2, the major time domain contributing to the total har- monic intensity is the central part of the laser pulse with significant field intensity ~for example, between 24 to 14 optical cycles!. Beyond this central time regime, the har- monic...

Chu, Xi; Chu, Shih-I

2001-07-13T23:59:59.000Z

37

Next-generation transcriptome assembly  

E-Print Network (OSTI)

technologies - the next generation. Nat Rev Genet 11, 31-algorithms for next-generation sequencing data. Genomicsassembly from next- generation sequencing data. Genome Res

Martin, Jeffrey A.

2012-01-01T23:59:59.000Z

38

Primitives for animation of algorithms  

E-Print Network (OSTI)

are the difficulty to animate algorithms automatically (or even manually) and the lack of color which is an important visual attribute. TANGO [23] (transition-based animation generation) is another algorithm animation system developed using a path... are the difficulty to animate algorithms automatically (or even manually) and the lack of color which is an important visual attribute. TANGO [23] (transition-based animation generation) is another algorithm animation system developed using a path...

Sudarsky, Sandra

2012-06-07T23:59:59.000Z

39

Distributed Generation  

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

Untapped Value of Backup Generation Untapped Value of Backup Generation While new guidelines and regulations such as IEEE (Institute of Electrical and Electronics Engineers) 1547 have come a long way in addressing interconnection standards for distributed generation, utilities have largely overlooked the untapped potential of these resources. Under certain conditions, these units (primarily backup generators) represent a significant source of power that can deliver utility services at lower costs than traditional centralized solutions. These backup generators exist today in large numbers and provide utilities with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie Mellon's Electricity

40

Arctic Lower Troposphere Observed Structure (ALTOS)  

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

Lower Troposphere Observed Structure (ALTOS) Lower Troposphere Observed Structure (ALTOS) will raise and lower a heavily instrumented tethered balloon system at regular intervals in the lower 2 kilometers of the atmosphere at Oliktok Point. Data obtained during the ALTOS campaign will provide a statistically significant set of observed in situ cloud properties for validating retrieval algorithms and help scientists reduce the uncertainty in the radiative forcing and heating rates on hourly time scales. The data will also help researchers gain a better understanding of the driving processes that control climate changes and determine the state of the Arctic climate system. Collaborators Science Team: The Pennsylvania State University, Stratton

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

The generation of HCl in the system NaCl-KCl-H{sub 2}O-quartz at 600{degrees}C: Implications regarding HCl in natural systems at lower temperatures  

SciTech Connect

In experiments at 600C in the system NaCI-KCI-H2O, within the analytical uncertainty, stoichiometric quantities of Cl and total alkali metals (Na+K) appear to dissolve in steam coexisting with chloride-rich brine at high pressures in the absence of solid salt. In contrast, at lower pressures, where steam coexists with precipitated salts, significant excess chloride as associated hydrogen chloride (HCI) dissolves in steam. The HCI appears to be generated by the reaction of solid NaCl(s) (halite) with steam, producing solid NaOH(s) that diffuses into halite, forming a solid solution. Where HCI is present highly associated NaOH as well as associated NaCI appear to dissolve in steam, and the solubility of each is increased as the mole fraction of NaOH(s) in halite increases. In our quasi-static experiments, compared to dynamic flow-through experiments of others, higher initial ratios of H2O/NaCI have resulted in higher mole fractions of NaOH(s) in solid solution in halite and, accordingly, higher solubilities of NaCI" and NaOH" dissolved in steam. Addition of quartz to the system NaCI-KCI-H2O results in the formation of sodium disilicate by reaction of silica with NaOH(s) and an order of magnitude increase in the concentration of HCl dissolved in steam. In natural hydrothermal systems at lower temperatures where brine or brine plus steam are present in the absence of precipitated salt, the pH of the brine is controlled mainly by base exchange reactions involving a variety of silicates that fix Na+/H+ and K+/H+ activity ratios. Where feldspars are present pH values generally are near neutral. Where mica, but no feldspar is present pH values may become only moderately acid. High acidity in salt-absent brine systems occurs only where all feldspars and mica have been altered to other minerals (generally pyrophyllite/ kaolinite or alunite). The situation changes significantly when salt precipitates. Hydrolysis produces HCI by the reaction of water with NaCl when halite is present. The NaOH(s) that is produced as a byproduct is likely to react with quartz plus various alumino-silicates, producing a variety of alteration products and allowing steam to become greatly enriched in HCl compared to the composition of steam that is attained in the simple system NaCI-KCI-H2O with halite present. Also, when a natural high-temperature hydrothermal system changes from one in which the pore fluid is brine to one in which the pore fluid is dry steam there is a drastic change in Na+/H+ and K+/H+ activity ratios in the pore fluid because the hydrogen ions that were predominantly dissociated species in the brine become predominantly associated species in steam. The net result is the stabilization of alkali feldspars in contact with steam that may contain appreciable HCI that is produced by the reaction of precipitated salt with the steam.

Fournier, Robert O.; Thompson, J. Michael

1993-01-28T23:59:59.000Z

42

Central Ferry Lower Monumental  

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

Projects Wind Projects Central Ferry Lower Monumental Transmission Line Project BPA will build a new 500-kilovolt (kV) transmission line from BPA's Central Ferry...

43

Inexact and accelerated proximal point algorithms  

E-Print Network (OSTI)

Aug 10, 2011 ... Abstract: We present inexact accelerated proximal point algorithms for minimizing a proper lower semicon- tinuous and convex function.

Saverio Salzo

2011-08-10T23:59:59.000Z

44

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

most commercial buildings, electricity costs far exceed heatoffset by lower electricity costs from on- site generation (as much from lower electricity costs as it does from lower

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

45

Comparison of Pseudorandom Numbers Generators and Chaotic Numbers Generators used in Differential Evolution  

Science Journals Connector (OSTI)

Differential evolution is one of the great family of evolutionary algorithms. As well as all evolutionary algorithms differential evolution uses pseudorandom numbers generators in many steps of algorithm. In this...

Lenka Skanderova; Adam ?eho?

2014-01-01T23:59:59.000Z

46

An Algorithm for Bootstrapping Communications  

E-Print Network (OSTI)

I present an algorithm which allows two agents to generate a simple language based only on observations of a shared environment. Vocabulary and roles for the language are learned in linear time. Communication is robust and ...

Beal, Jacob

2001-08-13T23:59:59.000Z

47

Energy Department Announces $25 Million to Lower Cost of Concentrating...  

Energy Savers (EERE)

clean and renewable energy, even at night, by storing the heat generated by the sun. "Investments to improve the efficiency and lower the costs of concentrating solar...

48

ORIGINAL ARTICLE Hydropower development in the lower Mekong basin  

E-Print Network (OSTI)

ORIGINAL ARTICLE Hydropower development in the lower Mekong basin: alternative approaches to deal hydropower generation and potentially irreversible negative impacts on the ecosystems that provide hydropower generation and potentially irreversible negative impacts on the ecosystems that provide

Vermont, University of

49

Algorithmic issues in queueing systems and combinatorial counting problems  

E-Print Network (OSTI)

(cont.) However, these randomized algorithms can never provide proven upper or lower bounds on the number of objects they are counting, but can only give probabilistic estimates. We propose a set of deterministic algorithms ...

Katz-Rogozhnikov, Dmitriy A

2008-01-01T23:59:59.000Z

50

NLO Partonic Event Generators  

E-Print Network (OSTI)

Merging the benefits of an NLO calculation with event generators is a topic of current interest. Among other things, it is advantageous to be able to generate unweighted events according to NLO matrix elements. I report on an algorithm which generates a sequence of unweighted momentum configurations, each configuration containing either n or n+1 four-vectors, such that for any infrared safe observable the average over these configurations coincides with the NLO calculation up to errors of a resolution variable.

Stefan Weinzierl

2002-05-10T23:59:59.000Z

51

A Seeded Memetic Algorithm for Large Unit Commitment Problems  

Science Journals Connector (OSTI)

The paper shows that the use of a memetic algorithm (MA), a genetic algorithm (GA) combined with local search, synergistically combined with Lagrangian relaxation is effective and efficient for solving large unit commitment problems in electric power ... Keywords: Lagrangian relaxation, electrical power generation, genetic algorithm, memetic algorithm, unit commitment

Jorge Valenzuela; Alice E. Smith

2002-03-01T23:59:59.000Z

52

Lower Hybrid to Whistler Wave Conversion  

SciTech Connect

In this presentation we discuss recent work concerning the conversion of whistler waves to lower hybrid waves (as well as the inverse process). These efforts have been motivated by the issue of attenuation of upward propagating whistler waves in the ionosphere generated by VLF transmitters on the ground, i.e., the 'Starks 20 db' problem, which affects the lifetimes of energetic electrons trapped in the geomagnetic field at low magnetic altitude (L). We discuss recent fluid and kinetic plasma simulations as well as ongoing experiments at UCLA to quantify linear and nonlinear mode conversion of lower hybrid to whistler waves.

Winske, Dan [Los Alamos National Laboratory

2012-07-16T23:59:59.000Z

53

Lower hybrid wavepacket stochasticity revisited  

SciTech Connect

Analysis is presented in support of the explanation in Ref. [1] for the observation of relativistic electrons during Lower Hybrid (LH) operation in EC pre-heated plasma at the WEGA stellarator [1,2]. LH power from the WEGA TE11 circular waveguide, 9 cm diameter, un-phased, 2.45 GHz antenna, is radiated into a B?0.5 T, Мn{sub e}?510{sup 17} 1/m{sup 3} plasma at T{sub e}?10 eV bulk temperature with an EC generated 50 keV component [1]. The fast electrons cycle around flux or drift surfaces with few collisions, sufficient for randomizing phases but insufficient for slowing fast electrons down, and thus repeatedly interact with the rf field close to the antenna mouth, gaining energy in the process. Our antenna calculations reveal a standing electric field pattern at the antenna mouth, with which we formulate the electron dynamics via a relativistic Hamiltonian. A simple approximation of the equations of motion leads to a relativistic generalization of the area-preserving Fermi-Ulam (F-U) map [3], allowing phase-space global stochasticity analysis. At typical WEGA plasma and antenna conditions, the F-U map predicts an LH driven current of about 230 A, at about 225 W of dissipated power, in good agreement with the measurements and analysis reported in [1].

Fuchs, V.; Krln, L.; Pnek, R.; Preinhaelter, J.; Seidl, J.; Urban, J. [Institute of Plasma Physics AS CR, v.v.i., Prague, CZ, Association EURATOM/IPP.CR (Czech Republic); Laqua, H. P. [Max Planck Institute fr Plasmaphysik, EURATOM Association, D-17491 Greifswald (Germany)

2014-02-12T23:59:59.000Z

54

Genetic algorithms  

SciTech Connect

Genetic algorithms solve problems by using principles inspired by natural population genetics: They maintain a population of knowledge structures that represent candidate solutions, and then let that population evolve over time through competition and controlled variation. GAs are being applied to a wide range of optimization and learning problems in many domains.

Grefenstette, J.J.

1994-12-31T23:59:59.000Z

55

Detecting Networks Employing Algorithmically Generated Domain Names  

E-Print Network (OSTI)

and hence has no com- mon IP address or a common domain name. Let ip = I be the total number of IP-addresses that are present after the F1 stage. and let d = D be total number of domain names that are present after the F1 stage. The vertices of graph G... for the second level domain name of xyz.com. At times a few of the IP addresses would end up in this component class because of a shortage in the 27 analysis period, given enough time ideally all the IP addresses (hosting server) of a single business unit...

Ashwath Kumar Krishna Reddy

2011-10-21T23:59:59.000Z

56

Lower East Fork Poplar Creek  

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

This document explains the cleanup activities and any use limitations for the land surrounding the Lower East Fork Poplar Creek.

57

GENERATING BINARY PROCESSES WITH ALL-POLE SPECTRA Petros Boufounos  

E-Print Network (OSTI)

GENERATING BINARY PROCESSES WITH ALL-POLE SPECTRA Petros Boufounos MIT Digital signal Processing presents an algorithm to generate autoregressive random binary processes with predefined mean spectrum. The process is generated recursively using a linear combination of the previously generated

Boufounos, Petros T.

58

Bose-Einstein Weights for Event Generators  

E-Print Network (OSTI)

A simple new algorithm for the calculation of two-particle Bose-Einstein correlations from classical event generators is derived and discussed.

Q. H. Zhang; U. A. Wiedemann; C. Slotta; U. Heinz

1997-04-21T23:59:59.000Z

59

Optimization Online - Dynamic Generation of Scenario Trees  

E-Print Network (OSTI)

Sep 3, 2014 ... Abstract: We present new algorithms for the dynamic generation of scenario trees for multistage stochastic optimization. The different methods...

G. Ch. Pflug

2014-09-03T23:59:59.000Z

60

TOWARDS AFFECTIVE ALGORITHMIC COMPOSITION  

E-Print Network (OSTI)

TOWARDS AFFECTIVE ALGORITHMIC COMPOSITION Duncan Williams* , Alexis Kirke* , Eduardo Reck Miranda are driving an emerging field: affective algorithmic composition. Strate- gies for algorithmic composition within the last decade) implementing systems for algorithmic composition with the intention of targeting

Miranda, Eduardo Reck

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Central Ferry-Lower Monumental  

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

Projects Spacer Damper Replacement Program Wind Projects Central Ferry-Lower Monumental BPA will build a new 500-kilovolt (kV) transmission line from BPA's Central Ferry...

62

Lowering Barriers | Department of Energy  

Office of Environmental Management (EM)

Lowering Barriers DOE is working to improve solar market conditions in order to create green jobs and increase the availability of clean, renewable energy for Americans. Efforts...

63

E-Print Network 3.0 - alignment tensors generated Sample Search...  

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

results for: alignment tensors generated Page: << < 1 2 3 4 5 > >> 1 Algorithm 862: MATLAB Tensor Classes for Fast Algorithm Prototyping Summary: . In other words, we align the...

64

Reducing the Cost of Generating APH-distributed Random Numbers  

E-Print Network (OSTI)

Reducing the Cost of Generating APH-distributed Random Numbers Philipp Reinecke1 , Mikl´os Telek2 for generating PH-distributed random numbers. In this work, we discuss algorithms for generating random numbers from PH distributions and propose two algorithms for reducing the cost associated with generating

Telek, Miklós

65

Nonlinear lower hybrid modeling in tokamak plasmas  

SciTech Connect

We present here new results concerning the nonlinear mechanism underlying the observed spectral broadening produced by parametric instabilities occurring at the edge of tokamak plasmas in present day LHCD (lower hybrid current drive) experiments. Low frequency (LF) ion-sound evanescent modes (quasi-modes) are the main parametric decay channel which drives a nonlinear mode coupling of lower hybrid (LH) waves. The spectrum of the LF fluctuations is calculated here considering the beating of the launched LH wave at the radiofrequency (RF) operating line frequency (pump wave) with the noisy background of the RF power generator. This spectrum is calculated in the frame of the kinetic theory, following a perturbative approach. Numerical solutions of the nonlinear LH wave equation show the evolution of the nonlinear mode coupling in condition of a finite depletion of the pump power. The role of the presence of heavy ions in a Deuterium plasma in mitigating the nonlinear effects is analyzed.

Napoli, F.; Schettini, G. [Universit Roma Tre, Dipartimento di Ingegneria, Roma (Italy); Castaldo, C.; Cesario, R. [Associazione EURATOM/ENEA sulla Fusione, Centro Ricerche Frascati (Italy)

2014-02-12T23:59:59.000Z

66

Horizontal Well Placement Optimization in Gas Reservoirs Using Genetic Algorithms  

E-Print Network (OSTI)

......................................................................................................................... 65 x LIST OF FIGURES FIGURE Page 1 Algorithm for single generation of GA.... well location......................................................... 40 11 Maximum function fitness value vs generation number for Case 1........... 41 12 Case 2 fitness value vs. well location...

Gibbs, Trevor Howard

2011-08-08T23:59:59.000Z

67

Japan may lower investment bars  

Science Journals Connector (OSTI)

Japan may lower investment bars ... But Minister of International Trade and Industry Takeo Miki did indicate that his ministry is studying the feasibility of easing restrictions on foreign investments, industry by industry. ...

1966-07-11T23:59:59.000Z

68

Lower Cost Carbon Fiber Precursors  

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

1 Lower Cost Carbon Fiber Precursors P.I. Name: Dave Warren Presenter: Dr. Amit K. Naskar Oak Ridge National Laboratory 05162012 Project ID LM004 This presentation does not...

69

Lower Colorado River Authority | Open Energy Information  

Open Energy Info (EERE)

River Authority River Authority Jump to: navigation, search Name Lower Colorado River Authority Place Texas Utility Id 11269 Utility Location Yes Ownership S NERC Location TRE NERC ERCOT Yes ISO Ercot Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Distribution Yes Activity Bundled Services Yes Alt Fuel Vehicle Yes Alt Fuel Vehicle2 Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates No Rates Available References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a"

70

A Polynomial Time Incremental Algorithm for Learning DFA  

E-Print Network (OSTI)

and membership queries. This algorithm is an extension of Angluin's ID pro­ cedure to an incremental framework that the modified hypoth­ esis is consistent with all examples observed thus far. The algorithm is guaranteed a knowledgeable teacher who responds to queries generated by the learner. Angluin's ID algorithm learns the target

Honavar, Vasant

71

Algorithm Development & Stepwise Refinement Algorithm Development  

E-Print Network (OSTI)

? Daylight savings time? Another required property of an algorithm is that each step can actually be carried to have no solution; algorithm asserts that a sub- problem will be solved without specifying how; etc

Murphy, John

72

Deductive Algorithmic Knowledge  

Science Journals Connector (OSTI)

......Original Articles Deductive Algorithmic Knowledge Riccardo Pucella Northeastern University...June 2005. The framework of algorithmic knowledge assumes that agents use algorithms to...reasoning about both implicit and explicit knowledge with the latter defined with respect......

Riccardo Pucella

2006-04-01T23:59:59.000Z

73

Transition-fault test generation  

E-Print Network (OSTI)

large to store in the memory of the tester. The proposed methods of test generation utilize stuck-at-fault tests to create transition-fault test sets of a smaller size. Greedy algorithms are used in the generation of both the stuck...

Cobb, Bradley Douglas

2013-02-22T23:59:59.000Z

74

Diophantine Generation,  

E-Print Network (OSTI)

Diophantine Generation, Horizontal and Vertical Problems, and the Weak Vertical Method Alexandra Shlapentokh Diophantine Sets, Definitions and Generation Diophantine Sets Diophantine Generation Properties of Diophantine Generation Diophantine Family of Z Diophantine Family of a Polynomial Ring Going Down Horizontal

Shlapentokh, Alexandra

75

Graph Algorithms Edge Coloring  

E-Print Network (OSTI)

: Perfect Matching Graph Algorithms 6 #12;Edge Covering An edge covering, EC E, is a set of edges #12;Example: Edge Covering Graph Algorithms 8 #12;Example: Minimal Edge Covering Graph Algorithms 9 #12;Example: Minimum Size Edge Covering Graph Algorithms 10 #12;Matching and Edge Covering Definition

Bar-Noy, Amotz

76

Lower bounds on mutual information  

Science Journals Connector (OSTI)

We correct claims about lower bounds on mutual information (MI) between real-valued random variables made by Kraskov et al., Phys. Rev. E 69, 066138 (2004). We show that non-trivial lower bounds on MI in terms of linear correlations depend on the marginal (single variable) distributions. This is so in spite of the invariance of MI under reparametrizations, because linear correlations are not invariant under them. The simplest bounds are obtained for Gaussians, but the most interesting ones for practical purposes are obtained for uniform marginal distributions. The latter can be enforced in general by using the ranks of the individual variables instead of their actual values, in which case one obtains bounds on MI in terms of Spearman correlation coefficients. We show with gene expression data that these bounds are in general nontrivial, and the degree of their (non)saturation yields valuable insight.

David V. Foster and Peter Grassberger

2011-01-20T23:59:59.000Z

77

QCD (&) event generators  

SciTech Connect

Recent developments in QCD phenomenology have spurred on several improved approaches to Monte Carlo event generation, relative to the post-LEP state of the art. In this brief review, the emphasis is placed on approaches for (1) consistently merging fixed-order matrix element calculations with parton shower descriptions of QCD radiation, (2) improving the parton shower algorithms themselves, and (3) improving the description of the underlying event in hadron collisions.

Skands, Peter Z.; /Fermilab

2005-07-01T23:59:59.000Z

78

A probabilistic approach to apriori algorithm  

Science Journals Connector (OSTI)

We consider the problem of applying probability concepts to discover frequent itemsets in a transaction database. The paper presents a probabilistic algorithm to discover association rules. The proposed algorithm outperforms the apriori algorithm for larger databases without losing a single rule. It involves a single database scan and significantly reduces the number of unsuccessful candidate sets generated in apriori algorithm that later fails the minimum support test. It uses the concept of recursive medians to compute the dispersion in the transaction list for each itemset. The recursive medians are implemented in the algorithm as an Inverted V-Median Search Tree (IVMST). The recursive medians are used to compute the maximum number of common transactions for any two itemsets. We try to present a time efficient probabilistic mechanism to discover frequent itemsets.

Vaibhav Sharma; M.M. Sufyan Beg

2012-01-01T23:59:59.000Z

79

Yucca: An Efficient Algorithm for Small-Molecule Docking1 by Vicky Choi  

E-Print Network (OSTI)

docking algorithms have been developed (see reviews [1][2] and comparison studies [3 ± 5]). Broadly and Genome Informatics?. #12;algorithms are based on genetic algorithms and/or Monte Carlo-simulated, multi-conformer docking algorithms separately generate a set of low-energy conformers, and then do rigid

Choi, Vicky

80

Generating random thermal momenta  

E-Print Network (OSTI)

Generation of random thermal particle momenta is a basic task in many problems, such as microscopic studies of equilibrium and transport properties of systems, or the conversion of a fluid to particles. In heavy-ion physics, the (in)efficiency of the algorithm matters particularly in hybrid hydrodynamics + hadronic transport calculations. With popular software packages, such as UrQMD 3.3p1 or THERMINATOR, it can still take ten hours to generate particles for a single Pb+Pb "event" at the LHC from fluid dynamics output. Below I describe reasonably efficient simple algorithms using the MPC package, which should help speed momentum generation up by at least one order of magnitude. It is likely that this wheel has been reinvented many times instead of reuse, so there may very well exist older and/or better algorithms that I am not aware of (MPC has been around only since 2000). The main goal here is to encourage practitioners to use available efficient routines, and offer a few practical solutions.

Denes Molnar

2012-12-09T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Lower Sioux Wind Feasibility & Development  

SciTech Connect

This report describes the process and findings of a Wind Energy Feasibility Study (Study) conducted by the Lower Sioux Indian Community (Community). The Community is evaluating the development of a wind energy project located on tribal land. The project scope was to analyze the critical issues in determining advantages and disadvantages of wind development within the Community. This analysis addresses both of the Community's wind energy development objectives: the single turbine project and the Commerical-scale multiple turbine project. The main tasks of the feasibility study are: land use and contraint analysis; wind resource evaluation; utility interconnection analysis; and project structure and economics.

Minkel, Darin

2012-04-01T23:59:59.000Z

82

Oxygen-Enriched Combustion for Military Diesel Engine Generators...  

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

Combustion for Military Diesel Engine Generators Oxygen-Enriched Combustion for Military Diesel Engine Generators Substantial increases in brake power and considerably lower peak...

83

1. Generation 1 1. Generation  

E-Print Network (OSTI)

1. Generation 1 _________________________________________________________________________ 1. Generation Sound and vibrations or, in more general terms, oscillations of matter (solids or fluids) are generated in many different dynamic processes. The basic mechanisms which underlie these oscillations

Berlin,Technische Universität

84

Finding Optimal Probabilistic Generators for XML Collections  

E-Print Network (OSTI)

Finding Optimal Probabilistic Generators for XML Collections Serge Abiteboul INRIA Saclay ENS (generative) probabilistic model, where optimality here means maximizing the like- lihood of the particular corpus to be generated. Focusing first on the structure of documents, we present an efficient algorithm

Paris-Sud XI, Université de

85

How Efficient Can We Be?: Bounds on Algorithm Energy Consumption  

E-Print Network (OSTI)

How Efficient Can We Be?: Bounds on Algorithm Energy Consumption Andrew Gearhart #12;Relation design use feedback to "cotune" compute kernel energy efficiency #12;Previous Work: Communication Lower-optimal" algorithms #12;Communication is energy inefficient! · On-chip/Off-chip gap isn't going to improve much Data

California at Irvine, University of

86

Decision-Support Software for Grid Operators: Transmission Topology Control for Infrastructure Resilience to the Integration of Renewable Generation  

SciTech Connect

GENI Project: The CRA team is developing control technology to help grid operators more actively manage power flows and integrate renewables by optimally turning on and off entire power lines in coordination with traditional control of generation and load resources. The control technology being developed would provide grid operators with tools to help manage transmission congestion by identifying the facilities whose on/off status must change to lower generation costs, increase utilization of renewable resources and improve system reliability. The technology is based on fast optimization algorithms for the near to real-time change in the on/off status of transmission facilities and their software implementation.

None

2012-03-16T23:59:59.000Z

87

Tensor rank : some lower and upper bounds  

E-Print Network (OSTI)

The results of Strassen [25] and Raz [19] show that good enough tensor rank lower bounds have implications for algebraic circuit/formula lower bounds. We explore tensor rank lower and upper bounds, focusing on explicit ...

Forbes, Michael Andrew

2011-01-01T23:59:59.000Z

88

Reconstruction algorithms for MRI  

E-Print Network (OSTI)

This dissertation presents image reconstruction algorithms for Magnetic Resonance Imaging (MRI) that aims to increase the imaging efficiency. Algorithms that reduce imaging time without sacrificing the image quality and ...

Bilgic?, Berkin

2013-01-01T23:59:59.000Z

89

ALGORITHM FOR ACCNT  

Energy Science and Technology Software Center (OSTI)

002651IBMPC00 Algorithm for Accounting for the Interactions of Multiple Renewable Energy Technologies in Estimation of Annual Performance

90

Distributed Algorithms Distributed Transactions  

E-Print Network (OSTI)

Algorithms© Gero Mühl 8 Concurrency Control serial RC (ReCoverable) ACA (Avoiding Cascading Aborts) ST (StricDistributed Algorithms Distributed Transactions PD Dr.-Ing. Gero Mühl Kommunikations- und Betriebssysteme Fakultät für Elektrotechnik u. Informatik Technische Universität Berlin #12;Distributed Algorithms

Wichmann, Felix

91

Assignment: Greedy Algorithms Name: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

E-Print Network (OSTI)

Algorithms Assignment: Greedy Algorithms Name to finding the largest set of jobs that can be scheduled on one machine. · Ordering by a non-decreasing order, there are inputs for which this greedy algorithm produces a solution whose profit is almost 1/n of the optimal

Bar-Noy, Amotz

92

Network Algorithms (Lecture Notes)  

E-Print Network (OSTI)

Network Algorithms (Lecture Notes) Dr. Stefan Schmid Thanks to Prof. Dr. Roger Wattenhofer and Prof to the Network Algorithms course! Computer systems are becoming more distributed and networked. This has two main, in order to fully exploit the distributed resource network, efficient algorithms need to be designed

Schmid, Stefan

93

Randomized Algorithms Robert Elsasser  

E-Print Network (OSTI)

Randomized Algorithms Robert Els¨asser 15. June 2011 Program of the day: · Random walks on graphs Robert Els¨asser Universit¨at Paderborn Randomized Algorithms SS 11 0 #12;Markov Chains and Random Walks¨asser Universit¨at Paderborn Randomized Algorithms SS 11 1 #12;Markov Chains and Random Walks A Markov chain M

Elsässer, Robert

94

A more flexible image generation environment  

Science Journals Connector (OSTI)

A supervisory process is used to distribute picture-generation tasks to heterogeneous subprocesses. Significant advantages accrue by tailoring the subprocesses to their tasks. In particular, scan conversion algorithms tailored to different surface types ... Keywords: Composite structures, Display algorithms, Graphs, Hidden line/surface elimination, Multiprocessing/multiprogramming, Performance measures, Picture description languages

F. C. Crow

1982-07-01T23:59:59.000Z

95

Technical Report: Scalable Parallel Algorithms for High Dimensional Numerical Integration  

SciTech Connect

We implemented a scalable parallel quasi-Monte Carlo numerical high-dimensional integration for tera-scale data points. The implemented algorithm uses the Sobol s quasi-sequences to generate random samples. Sobol s sequence was used to avoid clustering effects in the generated random samples and to produce low-discrepancy random samples which cover the entire integration domain. The performance of the algorithm was tested. Obtained results prove the scalability and accuracy of the implemented algorithms. The implemented algorithm could be used in different applications where a huge data volume is generated and numerical integration is required. We suggest using the hyprid MPI and OpenMP programming model to improve the performance of the algorithms. If the mixed model is used, attention should be paid to the scalability and accuracy.

Masalma, Yahya [Universidad del Turabo; Jiao, Yu [ORNL

2010-10-01T23:59:59.000Z

96

SunShot Initiative: Lowering Barriers  

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

Lowering Barriers to someone by Lowering Barriers to someone by E-mail Share SunShot Initiative: Lowering Barriers on Facebook Tweet about SunShot Initiative: Lowering Barriers on Twitter Bookmark SunShot Initiative: Lowering Barriers on Google Bookmark SunShot Initiative: Lowering Barriers on Delicious Rank SunShot Initiative: Lowering Barriers on Digg Find More places to share SunShot Initiative: Lowering Barriers on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Balance of Systems Reducing Non-Hardware Costs Lowering Barriers Fostering Growth Lowering Barriers DOE is working to improve solar market conditions in order to create green jobs and increase the availability of clean, renewable energy for Americans. Efforts to promote favorable policies and encourage easier

97

Status of dynamical ensemble generation  

E-Print Network (OSTI)

I give an overview of current and future plans of dynamical QCD ensemble generation activities. A comparison of simulation cost between different discretizations is made. Recent developments in techniques and algorithms used in QCD dynamical simulations, especially mass reweighting, are also discussed.

Chulwoo Jung

2010-01-06T23:59:59.000Z

98

Sampling-based robotic information gathering algorithms  

Science Journals Connector (OSTI)

We propose three sampling-based motion planning algorithms for generating informative mobile robot trajectories. The goal is to find a trajectory that maximizes an information quality metric (e.g. variance reduction, information gain, or mutual information) ... Keywords: Motion and path planning, field robotics, robotic information gathering

Geoffrey A. Hollinger, Gaurav S. Sukhatme

2014-08-01T23:59:59.000Z

99

Generation Planning (pbl/generation)  

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

Generation Hydro Power Wind Power Monthly GSP BPA White Book Dry Year Tools Firstgov Generation Planning Thumbnail image of BPA White Book BPA White Book (1998 - 2011) Draft Dry...

100

Application of an Improved SVM Algorithm for Wind Speed Forecasting  

Science Journals Connector (OSTI)

An improved Support Vector Machine (SVM) algorithm is used to forecast wind in Doubly Fed Induction Generator (DFIG) wind power system without aerodromometer. The ... Validation (CV) method. Finally, 3.6MW DFIG w...

Huaqiang Zhang; Xinsheng Wang; Yinxiao Wu

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


101

Distributed algorithms for mobile ad hoc networks  

E-Print Network (OSTI)

]. In the algorithms in [9], each node keeps a value, called its height, from a totally ordered set (typically, a tuple of integers), and links are logically considered to be directed from higher to lower heights. The heights are manipulated when topology changes... in advance the type and dimensions of the polyhedron that is used for the quanti- zation of S; furthermore, the nodes must be able to measure the distance that they cover when they move. All this adds to the complexity of the algorithm. Also, the ?ori...

Malpani, Navneet

2012-06-07T23:59:59.000Z

102

Sampling Within k-Means Algorithm to Cluster Large Datasets  

SciTech Connect

Due to current data collection technology, our ability to gather data has surpassed our ability to analyze it. In particular, k-means, one of the simplest and fastest clustering algorithms, is ill-equipped to handle extremely large datasets on even the most powerful machines. Our new algorithm uses a sample from a dataset to decrease runtime by reducing the amount of data analyzed. We perform a simulation study to compare our sampling based k-means to the standard k-means algorithm by analyzing both the speed and accuracy of the two methods. Results show that our algorithm is significantly more efficient than the existing algorithm with comparable accuracy. Further work on this project might include a more comprehensive study both on more varied test datasets as well as on real weather datasets. This is especially important considering that this preliminary study was performed on rather tame datasets. Also, these datasets should analyze the performance of the algorithm on varied values of k. Lastly, this paper showed that the algorithm was accurate for relatively low sample sizes. We would like to analyze this further to see how accurate the algorithm is for even lower sample sizes. We could find the lowest sample sizes, by manipulating width and confidence level, for which the algorithm would be acceptably accurate. In order for our algorithm to be a success, it needs to meet two benchmarks: match the accuracy of the standard k-means algorithm and significantly reduce runtime. Both goals are accomplished for all six datasets analyzed. However, on datasets of three and four dimension, as the data becomes more difficult to cluster, both algorithms fail to obtain the correct classifications on some trials. Nevertheless, our algorithm consistently matches the performance of the standard algorithm while becoming remarkably more efficient with time. Therefore, we conclude that analysts can use our algorithm, expecting accurate results in considerably less time.

Bejarano, Jeremy [Brigham Young University; Bose, Koushiki [Brown University; Brannan, Tyler [North Carolina State University; Thomas, Anita [Illinois Institute of Technology; Adragni, Kofi [University of Maryland; Neerchal, Nagaraj [University of Maryland; Ostrouchov, George [ORNL

2011-08-01T23:59:59.000Z

103

Wind power generating system  

SciTech Connect

Normally feathered propeller blades of a wind power generating system unfeather in response to the actuation of a power cylinder that responds to actuating signals. Once operational, the propellers generate power over a large range of wind velocities. A maximum power generation design point signals a feather response of the propellers so that once the design point is reached no increase in power results, but the system still generates power. At wind speeds below this maximum point, propeller speed and power output optimize to preset values. The propellers drive a positive displacement pump that in turn drives a positive displacement motor of the swash plate type. The displacement of the motor varies depending on the load on the system, with increasing displacement resulting in increasing propeller speeds, and the converse. In the event of dangerous but not clandestine problems developing in the system, a control circuit dumps hydraulic pressure from the unfeathering cylinder resulting in a predetermined, lower operating pressure produced by the pump. In the event that a problem of potentially cladestine consequence arises, the propeller unfeathering cylinder immediately unloads. Upon startup, a bypass around the motor is blocked, applying a pressure across the motor. The motor drives the generator until the generator reaches a predetermined speed whereupon the generator is placed in circuit with a utility grid and permitted to motor up to synchronous speed.

Schachle, Ch.; Schachle, E. C.; Schachle, J. R.; Schachle, P. J.

1985-03-12T23:59:59.000Z

104

Lower bounds for randomized Exclusive Write PRAMs  

SciTech Connect

In this paper we study the question: How useful is randomization in speeding up Exclusive Write PRAM computations? Our results give further evidence that randomization is of limited use in these types of computations. First we examine a compaction problem on both the CREW and EREW PRAM models, and we present randomized lower bounds which match the best deterministic lower bounds known. (For the CREW PRAM model, the lower bound is asymptotically optimal.) These are the first non-trivial randomized lower bounds known for the compaction problem on these models. We show that our lower bounds also apply to the problem of approximate compaction. Next we examine the problem of computing boolean functions on the CREW PRAM model, and we present a randomized lower bound, which improves on the previous best randomized lower bound for many boolean functions, including the OR function. (The previous lower bounds for these functions were asymptotically optimal, but we improve the constant multiplicative factor.) We also give an alternate proof for the randomized lower bound on PARITY, which was already optimal to within a constant additive factor. Lastly, we give a randomized lower bound for integer merging on an EREW PRAM which matches the best deterministic lower bound known. In all our proofs, we use the Random Adversary method, which has previously only been used for proving lower bounds on models with Concurrent Write capabilities. Thus this paper also serves to illustrate the power and generality of this method for proving parallel randomized lower bounds.

MacKenzie, P.D.

1995-05-02T23:59:59.000Z

105

Winter Energy Savings from Lower Thermostat Settings  

Reports and Publications (EIA)

This discussion provides details on the effect of lowering thermostat settings during the winter heating months of 1997.

2000-01-01T23:59:59.000Z

106

Simple Generators for List-Based Optimisers Maurice Clerc  

E-Print Network (OSTI)

Simple Generators for List-Based Optimisers Maurice Clerc 11th June 2014 Abstract A coded random number generator (RNG) is in fact a generator of a list of numbers (LNG), and any algorithm that uses is an optimiser: namely, a) there is no need of a complicated LNG, and b) the generated list can be very short, so

Paris-Sud XI, Université de

107

DSM Generation and Interior Orientation Determination of IKONOS Images Using a Testfield in Switzerland*  

E-Print Network (OSTI)

DSM Generation and Interior Orientation Determination of IKONOS Images Using a Testfield-resolution satellite images, IKONOS, image matching, DSM generation, in-flight calibration, interior orientation- timal imaging conditions (snow, long shadows). A sophisticated matching algorithm for DSM generation

Giger, Christine

108

The Lie point symmetry generators admitted by systems of linear differential equations  

Science Journals Connector (OSTI)

...1008 59 112 4 The Lie point symmetry generators admitted by systems of linear differential...existence of a basis of infinitesimal generators (as determined by Lie's algorithm...symmetry|linear system|infinitesimal generator|fibre-preserving|affine bundle...

2014-01-01T23:59:59.000Z

109

Generating Textures of New Zealand Native Wood  

E-Print Network (OSTI)

1 Generating Textures of New Zealand Native Wood Jack Wang Abstract - This report explores algorithms for computer generated textures simulating New Zealand native wood, we out line procedural and Ray tracing. The main goal of this research is to study New Zealand native wood in depth and to gather

Goodman, James R.

110

Graph Algorithms Robert Elsasser  

E-Print Network (OSTI)

-regular bipartite graph has a perfect matching. Definition 3: A vertex cover of a graph G = (V, E) is a set Q VGraph Algorithms Robert Els¨asser 10 November 2011 Program of the day: · Matchings in bipartite graphs Robert Els¨asser Universit¨at Paderborn Graph Algorithms WS 11/12 0 #12;5. Matchings in bipartite

Elsässer, Robert

111

Genetic Algorithms: Applications  

E-Print Network (OSTI)

Independent Set Problem ffl Bin Packing Problem ffl Maximum Set Covering Problem ffl Terminal AssignmentGenetic Algorithms: Applications Sami Khuri Dept. of Math. & Computer Science San Jos'e State; GA Applications: Topics Today's Topics ffl Brief Introduction to the Simple Genetic Algorithm. ffl

Khuri, Sami

112

Studienarbeit Tuning Algorithms for  

E-Print Network (OSTI)

-time algorithms when k is fixed. (For example, given a graph, decide if it has a Vertex Cover of size at most k solution for Vertex Cover or Dominating Set is determined with the help of dynamic programming, whichStudienarbeit Tuning Algorithms for Hard Planar Graph Problems Frederic Dorn Betreuer: Dipl

Fomin, Fedor V.

113

Combined economic and emission dispatch solution using gravitational search algorithm  

Science Journals Connector (OSTI)

In this article, the Gravitational Search Algorithm (GSA) has been proposed to find the optimal solution for Combined Economic and Emission Dispatch (CEED) problems. It is aimed, in the CEED problem, that scheduling of generators should operate with both minimum fuel costs and emission levels, simultaneously, while satisfying the load demand and operational constraints. In this paper, the CEED problem is formulated as a multi-objective problem by considering the fuel cost and emission objectives of generating units. The bi-objective optimization problem is converted into a single objective function using a price penalty factor in order to solve it with GSA. The proposed algorithm has been implemented on four different test cases, having a valve point effect with transmission loss and having no valve point effect without transmission loss. In order to see the effectiveness of the proposed algorithm, it has been compared with other algorithms in the literature. Results show that the GSA is more powerful than other algorithms.

U. Gven; Y. Snmez; S. Duman; N. Yrkeren

2012-01-01T23:59:59.000Z

114

Thermoacoustic magnetohydrodynamic electrical generator  

DOE Patents (OSTI)

A thermoacoustic magnetohydrodynamic electrical generator includes an intrinsically irreversible thermoacoustic heat engine coupled to a magnetohydrodynamic electrical generator. The heat engine includes an electrically conductive liquid metal as the working fluid and includes two heat exchange and thermoacoustic structure assemblies which drive the liquid in a push-pull arrangement to cause the liquid metal to oscillate at a resonant acoustic frequency on the order of 1,000 Hz. The engine is positioned in the field of a magnet and is oriented such that the liquid metal oscillates in a direction orthogonal to the field of the magnet, whereby an alternating electrical potential is generated in the liquid metal. Low-loss, low-inductance electrical conductors electrically connected to opposite sides of the liquid metal conduct an output signal to a transformer adapted to convert the low-voltage, high-current output signal to a more usable higher voltage, lower current signal.

Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

1986-01-01T23:59:59.000Z

115

Thermoelectric Generators 1. Thermoelectric generator  

E-Print Network (OSTI)

. Cold Hot I - -- - - - - -- Figure 1 Electron concentration in a thermoelectric material. #12;2 A large1 Thermoelectric Generators HoSung Lee 1. Thermoelectric generator 1.1 Basic Equations In 1821 on the direction of current and material [3]. This is called the Thomson effect (or Thomson heat). These three

Lee, Ho Sung

116

Tight Lower Bounds for st-Connectivity on the NNJAG Model (jeff@cs.yorku.ca)  

E-Print Network (OSTI)

4=3) on the NNJAG model by Edmonds Edm93a]. Our lower bound is tight for S 2 O(n1 ), for any > 0 to the size of the internal mem- ory of a machine. In these applications algorithms that run in small space

Edmonds, Jeff

117

Fast algorithm for relaxation processes in big-data systems  

Science Journals Connector (OSTI)

Relaxation processes driven by a Laplacian matrix can be found in many real-world big-data systems, for example, in search engines on the World Wide Web and the dynamic load-balancing protocols in mesh networks. To numerically implement such processes, a fast-running algorithm for the calculation of the pseudoinverse of the Laplacian matrix is essential. Here we propose an algorithm which computes quickly and efficiently the pseudoinverse of Markov chain generator matrices satisfying the detailed-balance condition, a general class of matrices including the Laplacian. The algorithm utilizes the renormalization of the Gaussian integral. In addition to its applicability to a wide range of problems, the algorithm outperforms other algorithms in its ability to compute within a manageable computing time arbitrary elements of the pseudoinverse of a matrix of size millions by millions. Therefore our algorithm can be used very widely in analyzing the relaxation processes occurring on large-scale networked systems.

S. Hwang; D.-S. Lee; B. Kahng

2014-10-06T23:59:59.000Z

118

NETL: News Release - More Electricity, Lower Emissions from Lignite Plants  

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

25, 2004 25, 2004 More Electricity, Lower Emissions from Lignite Plants Are Goals of New Clean Coal Project Fuel Enhancement System Expected to Boost Generating Capacities WASHINGTON, DC - Secretary of Energy Spencer Abraham today announced the testing of the Lignite Fuel Enhancement System, a new process that could dramatically reduce air emissions from certain coal-based power plants while boosting overall generating capacity. The project, conducted by Great River Energy, is expected to boost the generating capacity and efficiency of power plants that burn high-moisture lignite coal, thereby reducing air pollutants and greenhouse gases. The new technology uses waste heat to dry nearly a quarter of the moisture in the coal before it is fed into the power plant boiler.

119

Quasiseparable Generators  

Science Journals Connector (OSTI)

It is clear from the preceding chapter that any matrix has quasiseparable representations. By padding given quasiseparable generators with zero matrices of large sizes one ... large orders. However, one is lookin...

Yuli Eidelman; Israel Gohberg

2014-01-01T23:59:59.000Z

120

Capturing Waste Gas: Saves Energy, Lower Costs  

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

per hour of steam from about 490 MMBtu per hour of previously wasted BFG. The steam drives existing turbo-generators at the facility to generate electricity. The electricity...

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Sandia National Laboratories: lowering costs associated with...  

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

lowering costs associated with geothermal energy production Sandia and Atlas-Copco Secoroc Advance to Phase 2 in Their Geothermal Energy Project On July 31, 2013, in Energy,...

122

Graph Algorithms Robert Elsasser  

E-Print Network (OSTI)

. Definition 3: A vertex cover of a graph G = (V, E) is a set Q V , such that each edge of E is incidentGraph Algorithms Robert Els¨asser 17 November 2011 Program of the day: · Matchings in bipartite graphs Robert Els¨asser Universit¨at Paderborn Graph Algorithms WS 11/12 0 #12;5. Matchings in bipartite

Elsässer, Robert

123

Graph Algorithms Vertex Coloring  

E-Print Network (OSTI)

Coloring Definition I: A disjoint collection of independent sets that cover all the vertices in the graphGraph Algorithms Vertex Coloring Graph Algorithms #12;The Input Graph G = (V, E) a simple and undirected graph: V : a set of n vertices. E: a set of m edges. A B EF C D A B C D E F A 0 1 1 1 0 0 B 1 0

Bar-Noy, Amotz

124

Lower bound and an optimal algorithm for leader election in faulty asynchronous general networks  

E-Print Network (OSTI)

the problem of electing a leader in faulty asynchronous general net- works. The network coritams a reliable path connecting all the nodes in the network. The type of failure the links experience is interinittent. Since thc network is asyn- chronous... are faulty in nature. A faulty network may contain either faulty nodes, faulty links or both. In reliable networlcs, even if some of the elements fail, the whole network still will work reliably, giving the impression that everytliing is fine. Under a...

Lateef, Mohammed Afroz

2012-06-07T23:59:59.000Z

125

Algorithms With Impact (CpSc 940: Advanced Algorithms)  

E-Print Network (OSTI)

Algorithms With Impact (CpSc 940: Advanced Algorithms) Instructor: Dr. Brian Dean Fall 2011 Webpage and Course Goals The study of algorithms is a significant part of the foundation for the discipline of computer science. Over the past several decades, research in algorithmic computer science has advanced

Dean, Brian C.

126

Microwave generator  

DOE Patents (OSTI)

A microwave generator is provided for generating microwaves substantially from virtual cathode oscillation. Electrons are emitted from a cathode and accelerated to an anode which is spaced apart from the cathode. The anode has an annular slit there through effective to form the virtual cathode. The anode is at least one range thickness relative to electrons reflecting from the virtual cathode. A magnet is provided to produce an optimum magnetic field having the field strength effective to form an annular beam from the emitted electrons in substantial alignment with the annular anode slit. The magnetic field, however, does permit the reflected electrons to axially diverge from the annular beam. The reflected electrons are absorbed by the anode in returning to the real cathode, such that substantially no reflexing electrons occur. The resulting microwaves are produced with a single dominant mode and are substantially monochromatic relative to conventional virtual cathode microwave generators. 6 figs.

Kwan, T.J.T.; Snell, C.M.

1987-03-31T23:59:59.000Z

127

Viscosity profile of the lower mantle  

Science Journals Connector (OSTI)

......October 1985 research-article Articles Viscosity profile of the lower mantle Kirk Ellsworth...determine the variation of effective viscosity across the lower mantle from models of...consistent with recent estimates of mantle viscosity from post-glacial rebound and true......

Kirk Ellsworth; Gerald Schubert; Charles G. Sammis

1985-10-01T23:59:59.000Z

128

Strict Lower Bounds for Model Checking BPA  

E-Print Network (OSTI)

Strict Lower Bounds for Model Checking BPA Richard Mayr Institut f¨ur Informatik, Technische lower bounds for the complexity of several model checking problems for BPA and branching­time logics Algebra (BPA) processes were defined by Bergstra and Klop in [BK85]. They are transition systems

?ayr, Richard

129

A Generate-Test-Aggregate parallel programming library for systematic parallel programming  

Science Journals Connector (OSTI)

The Generate-Test-Aggregate (GTA for short) algorithm is modeled following a simple and straightforward programming pattern, for combinatorial problems. First, generate all candidates; second, test and filter out invalid ones; finally, aggregate valid ... Keywords: Functional programming, Generate-Test-Aggregate algorithm, High-level parallel programming, MapReduce, Program calculation, Program transformation

Yu Liu; Kento Emoto; Zhenjiang Hu

2014-02-01T23:59:59.000Z

130

Storing syngas lowers the carbon price for profitable coal gasification  

SciTech Connect

Integrated gasification combined cycle (IGCC) electric power generation systems with carbon capture and sequestration have desirable environmental qualities but are not profitable when the carbon dioxide price is less than approximately $50 per metric ton. We examine whether an IGCC facility that operates its gasifier continuously but stores the syngas and produces electricity only when daily prices are high may be profitable at significantly lower CO{sub 2} prices. Using a probabilistic analysis, we have calculated the plant-level return on investment (ROI) and the value of syngas storage for IGCC facilities located in the U.S. Midwest using a range of storage configurations. Adding a second turbine to use the stored syngas to generate electricity at peak hours and implementing 12 h of above-ground high-pressure syngas storage significantly increases the ROI and net present value. Storage lowers the carbon price at which IGCC enters the U.S. generation mix by approximately 25%. 36 refs., 7 figs., 1 tab.

Adam Newcomer; Jay Apt [Carnegie Mellon University, Pittsburgh, PA (USA). Carnegie Mellon Electricity Industry Center

2007-12-15T23:59:59.000Z

131

Ant Algorithms for Discrete Optimization  

E-Print Network (OSTI)

Ant Algorithms for Discrete Optimization Marco Dorigo and Gianni Di Caro IRIDIA, Universit´e Libre, Switzerland luca@idsia.ch Abstract This paper overviews recent work on ant algorithms, that is, algorithms and of some of the most important aspects of the ACO meta-heuristic. 1 Introduction Ant algorithms were first

Gambardella, Luca Maria

132

SWAP: PARALLELIZATION THROUGH ALGORITHM SUBSTITUTION  

E-Print Network (OSTI)

://code.google.com/p/ thrust). There is a vast set of tasks that pro- grammers want to perform, and few of the algorithms: PARALLELIZATION THROUGH ALGORITHM SUBSTITUTION ................................................................................................................................................................................................................... BY EXPLICITLY INDICATING WHICH ALGORITHMS THEY USE AND ENCAPSULATING THESE ALGORITHMS WITHIN SOFTWARE COMPONENTS

Eeckhout, Lieven

133

Ant Algorithms for Discrete Optimization  

E-Print Network (OSTI)

Ant Algorithms for Discrete Optimization Marco Dorigo Gianni Di Caro IRIDIA CP 194/6 Universit algorithms, ant colony optimiza- tion, swarm intelligence, metaheuris- tics, natural computation Abstract This article presents an overview of recent work on ant algorithms, that is, algorithms for discrete

Hutter, Frank

134

Ant Algorithms for Discrete Optimization  

E-Print Network (OSTI)

Ant Algorithms for Discrete Optimization Marco Dorigo and Gianni Di Caro IRIDIA, Universit#19;e, Switzerland luca@idsia.ch Abstract This paper overviews recent work on ant algorithms, that is, algorithms work and of some of the most important aspects of the ACO meta-heuristic. 1 Introduction Ant algorithms

Ducatelle, Frederick

135

ALGORITHMS FOR CONSTRUCTING COMPARATIVE MAPS  

E-Print Network (OSTI)

. In this paper we present e#cient algorithms that help in automating this e#ort and o#er an explicit setALGORITHMS FOR CONSTRUCTING COMPARATIVE MAPS Debra S. Goldberg Susan McCouch Jon Kleinberg expert analysis, a simple linear algorithm, and a more complex stack­based algorithm. All three methods

Kleinberg, Jon

136

Next Generation Photovoltaics 3  

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

SunShot's next generation PV projects investigate transformational photovoltaic (PV) technologies with the potential to meet SunShot cost targets. The projects' goals are to: Increase efficiency Reduce costs Improve reliability Create more secure and sustainable supply chains. On October 22, 2014, SunShot awarded more than $14 million to 10 research institutions to meet or exceed SunShot targets by improving performance, efficiency, and durability of solar PV devices. The R&D projects will explore a spectrum of leading-edge solutions, from new high-performance materials like perovskites to novel techniques for creating solar cells with high efficiency and lower manufacturing cost. Learn more about the second round of SunShot's Next Generations Photolvoltaics funding program, or find other PV competitive award programs.

137

A DISTRIBUTED SHARED KEY GENERATION PROCEDURE USING FRACTIONAL KEYS  

E-Print Network (OSTI)

A DISTRIBUTED SHARED KEY GENERATION PROCEDURE USING FRACTIONAL KEYS R. Poovendran, M. S. Corson, J}@isr.umd.edu ABSTRACT W e present a new class of distributed key generation and recovery algorithms suitable for group) with a Group Con- troller (GC) which can generate and distribute the keys. However, in these approaches

Baras, John S.

138

A FULLY DISTRIBUTED PRIME NUMBERS GENERATION USING THE WHEEL SIEVE  

E-Print Network (OSTI)

A FULLY DISTRIBUTED PRIME NUMBERS GENERATION USING THE WHEEL SIEVE Gabriel Paillard Laboratoire d distributed approach for generating all prime numbers up to a given limit. From Er- atosthenes, who elaborated. In this work, we propose a new distributed algorithm which generates all prime num- bers in a given finite

Paris-Sud XI, Université de

139

Random Generation of Deterministic Acyclic Automata Using Markov Chains  

E-Print Network (OSTI)

Random Generation of Deterministic Acyclic Automata Using Markov Chains Vincent Carnino and Sven De@etudiant.univ-mlv.fr,defelic@univ-mlv.fr Abstract. In this article we propose an algorithm, based on Markov chain techniques, to generate random to generate minimal acyclic automata with n states almost uniformly. 1 Introduction In language theory

Paris-Sud XI, Université de

140

AClass: An online algorithm for generative classification Vikash K. Mansinghka  

E-Print Network (OSTI)

Intelligence Lab, 32 Vassar St., Cambridge, MA 02139 Honda Research Institute USA, Inc., 145 Tremont St vkm@mit.edu Daniel M. Roy MIT CSAIL droy@mit.edu Ryan Rifkin Honda Research USA rrifkin of Nigam (2001), which used conventional finite mixture models (trained with EM) to represent class

Tenenbaum, Josh

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141

Algorithms for MIS Vector Generation and Pruning Kenneth S. Stevens  

E-Print Network (OSTI)

one input, as demonstrated in Figure 1. If in2 switches long before inl, the delay from inl to the output remains constant. However, as the separation between inl and in2 approaches zero, the delay from inl to the output can in- crease substantially. Figure 1 presents the maximum delay as a percentage

Stevens, Ken

142

Lower Saccharide Nanometric Materials and Methods  

DOE Patents (OSTI)

A ceramic composition having at least one nanometric ceramic powder, at least one lower saccharide, and water. The composition is useful in many industrial applications, including preparation of stronger and substantially defect free green and sintered ceramic bodies.

Schilling, Christopher H.; Tomasik, Piotr; Sikora, Marek

2004-07-13T23:59:59.000Z

143

Quantum Lower Bounds by Polynomials Robert Beals  

E-Print Network (OSTI)

Quantum Lower Bounds by Polynomials Robert Beals University of Arizonaz Harry Buhrman CWI.O. Box 210089, 617 N. Santa Rita Ave, Tucson AZ 85721­0089, USA. E-mail: beals@math.arizona.edu. xCWI, P

de Wolf, Ronald

144

Magnetocumulative generator  

DOE Patents (OSTI)

An improved magnetocumulative generator is described that is useful for producing magnetic fields of very high energy content over large spatial volumes. The polar directed pleated magnetocumulative generator has a housing providing a housing chamber with an electrically conducting surface. The chamber forms a coaxial system having a small radius portion and a large radius portion. When a magnetic field is injected into the chamber, from an external source, most of the magnetic flux associated therewith positions itself in the small radius portion. The propagation of an explosive detonation through high-explosive layers disposed adjacent to the housing causes a phased closure of the chamber which sweeps most of the magnetic flux into the large radius portion of the coaxial system. The energy content of the magnetic field is greatly increased by flux stretching as well as by flux compression. The energy enhanced magnetic field is utilized within the housing chamber itself.

Pettibone, J.S.; Wheeler, P.C.

1981-06-08T23:59:59.000Z

145

A tool-path generation strategy for wire and arc additive manufacturing  

Science Journals Connector (OSTI)

This paper presents an algorithm to automatically generate optimal tool-paths for the wire and arc additive manufacturing (WAAM) process for a large class...

Donghong Ding; Zengxi (Stephen) Pan

2014-07-01T23:59:59.000Z

146

E-Print Network 3.0 - adaptive grid generation Sample Search...  

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

of .004, the adaptive algorithm automatically generates 5 refined grids. One grid patch... and more elsewhere, would clearly be optimal. In this talk, we describe a method of...

147

Monthly Generation System Peak (pbl/generation)  

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

Generation > Generation Hydro Power Wind Power Monthly GSP BPA White Book Dry Year Tools Firstgov Monthly Generation System Peak (GSP) This site is no longer maintained. Page last...

148

Nonlocality improves Deutsch algorithm  

E-Print Network (OSTI)

Recently, [{arXiv:0810.3134}] is accepted and published. We show that the Bell inequalities lead to a new type of linear-optical Deutsch algorithms. We have considered a use of entangled photon pairs to determine simultaneously and probabilistically two unknown functions. The usual Deutsch algorithm determines one unknown function and exhibits a two to one speed up in a certain computation on a quantum computer rather than on a classical computer. We found that the violation of Bell locality in the Hilbert space formalism of quantum theory predicts that the proposed {\\it probabilistic} Deutsch algorithm for computing two unknown functions exhibits at least a $2\\sqrt{2}(\\simeq 2.83)$ to one speed up.

Koji Nagata; Sangkyung Lee; Jaewook Ahn

2007-03-15T23:59:59.000Z

149

Photon generator  

DOE Patents (OSTI)

A photon generator includes an electron gun for emitting an electron beam, a laser for emitting a laser beam, and an interaction ring wherein the laser beam repetitively collides with the electron beam for emitting a high energy photon beam therefrom in the exemplary form of x-rays. The interaction ring is a closed loop, sized and configured for circulating the electron beam with a period substantially equal to the period of the laser beam pulses for effecting repetitive collisions.

Srinivasan-Rao, Triveni (Shoreham, NY)

2002-01-01T23:59:59.000Z

150

Numerical modeling of lower hybrid heating and current drive  

SciTech Connect

The generation of currents in toroidal plasma by application of waves in the lower hybrid frequency range involves the interplay of several physical phenomena which include: wave propagation in toroidal geometry, absorption via wave-particle resonances, the quasilinear generation of strongly nonequilibrium electron and ion distribution functions, and the self-consistent evolution of the current density in such a nonequilibrium plasma. We describe a code, LHMOD, which we have developed to treat these aspects of current drive and heating in tokamaks. We present results obtained by applying the code to a computation of current ramp-up and to an investigation of the possible importance of minority hydrogen absorption in a deuterium plasma as the ''density limit'' to current drive is approached.

Valeo, E.J.; Eder, D.C.

1986-03-01T23:59:59.000Z

151

An efficient parallel algorithm for matrix-vector multiplication  

SciTech Connect

The multiplication of a vector by a matrix is the kernel computation of many algorithms in scientific computation. A fast parallel algorithm for this calculation is therefore necessary if one is to make full use of the new generation of parallel supercomputers. This paper presents a high performance, parallel matrix-vector multiplication algorithm that is particularly well suited to hypercube multiprocessors. For an n x n matrix on p processors, the communication cost of this algorithm is O(n/[radical]p + log(p)), independent of the matrix sparsity pattern. The performance of the algorithm is demonstrated by employing it as the kernel in the well-known NAS conjugate gradient benchmark, where a run time of 6.09 seconds was observed. This is the best published performance on this benchmark achieved to date using a massively parallel supercomputer.

Hendrickson, B.; Leland, R.; Plimpton, S.

1993-03-01T23:59:59.000Z

152

Optimal allocation of stochastically dependent renewable energy based distributed generators in unbalanced distribution networks  

Science Journals Connector (OSTI)

Abstract This paper proposes an algorithm for modeling stochastically dependent renewable energy based distributed generators for the purpose of proper planning of unbalanced distribution networks. The proposed algorithm integrate the diagonal band Copula and sequential Monte Carlo method in order to accurately consider the multivariate stochastic dependence between wind power, photovoltaic power and the system demand. Secondly, an efficient algorithm based on modification of the traditional Big Bang-Big crunch method is proposed for optimal placement of renewable energy based distributed generators in the presence of dispatchable distributed generation. The proposed optimization algorithm aims to minimize the energy loss in unbalanced distribution systems by determining the optimal locations of non-dispatchable distributed generators and the optimal hourly power schedule of dispatchable distributed generators. The proposed algorithms are implemented in MATLAB environment and tested on the IEEE 37-node feeder. Several case studies are done and the subsequent discussions show the effectiveness of the proposed algorithms.

A.Y. Abdelaziz; Y.G. Hegazy; Walid El-Khattam; M.M. Othman

2015-01-01T23:59:59.000Z

153

Generation Technologies  

E-Print Network (OSTI)

Many local governments are using green power in their facilities and providing assistance to local businesses and residents to do the same. Green power is a subset of renewable energy that is produced with no GHG emissions, typically from solar, wind, geothermal, biogas, biomass, or low-impact small hydroelectric sources, includes three types of products: utility products (i.e., green power purchased from the utility through the electricity grid), renewable energy certificates (RECs), and on-site generation. Opportunities to purchase these products are increasing significantly, with annual green power market growth rates

Green Power

2005-01-01T23:59:59.000Z

154

Approximation Algorithms Tandy Warnow  

E-Print Network (OSTI)

size and 1 / . #12;Approximation algorithms for: Minimum Vertex Cover (finding a set of vertices-SAT 3-SAT DIR-HAM-CYCLEINDEPENDENT SET VERTEX COVER GRAPH 3-COLOR HAM-CYCLE TSP SUBSET-SUM SCHEDULINGPLANAR 3-COLOR SET COVER NP-Completeness by definition of NP-completeness #12;NP-hard Optimization

Warnow,Tandy

155

Genetic algorithm eclipse mapping  

E-Print Network (OSTI)

In this paper we analyse capabilities of eclipse mapping technique, based on genetic algorithm optimization. To model of accretion disk we used the "fire-flies" conception. This model allows us to reconstruct the distribution of radiating medium in the disk using less number of free parameters than in other methods. Test models show that we can achieve good approximation without optimizing techniques.

Halevin, A V

2008-01-01T23:59:59.000Z

156

Optimization Online - Simultaneous Column-and-Row Generation ...  

E-Print Network (OSTI)

Nov 14, 2010 ... Abstract: In this paper, we develop a simultaneous column-and-row generation algorithm that could be applied to a general class of large-scale...

Ibrahim Muter

2010-11-14T23:59:59.000Z

157

Magnetocumulative generator  

DOE Patents (OSTI)

An improved magnetocumulative generator is described that is useful for producing magnetic fields of very high energy content over large spatial volumes. The polar directed pleated magnetocumulative generator has a housing (100, 101, 102, 103, 104, 105) providing a housing chamber (106) with an electrically conducting surface. The chamber (106) forms a coaxial system having a small radius portion and a large radius portion. When a magnetic field is injected into the chamber (106), from an external source, most of the magnetic flux associated therewith positions itself in the small radius portion. The propagation of an explosive detonation through high-explosive layers (107, 108) disposed adjacent to the housing causes a phased closure of the chamber (106) which sweeps most of the magnetic flux into the large radius portion of the coaxial system. The energy content of the magnetic field is greatly increased by flux stretching as well as by flux compression. The energy enhanced magnetic field is utilized within the housing chamber itself.

Pettibone, Joseph S. (Livermore, CA); Wheeler, Paul C. (Livermore, CA)

1983-01-01T23:59:59.000Z

158

A BIASED RANDOM-KEY GENETIC ALGORITHM FOR ROUTING ...  

E-Print Network (OSTI)

Apr 4, 2010 ... much faster than the currently available electronic devices for signal reception and transmission. ..... This genetic algorithm does not make use of the .... provided by the heuristic and a lower bound lb for the optimal cost, calculated as ..... In Handbook for Optimization in Telecommunications, pages 637677.

Thiago

159

CS 105: Algorithms (Grad) Approximation Algorithms (continued) Feb 21, 2005  

E-Print Network (OSTI)

.g. Clique. = O(log n), e.g. Set Cover. = O(1), e.g. Vertex Cover. Page 1 of 7 #12;CS 105: Algorithms (Grad Algorithms: Vertex Cover 1.1 Introduction to Approximation Algorithms There are several optimization problems (TSP) - finding a minimum cost tour of all cities � Vertex Cover - find minimum set of vertex

Chakrabarti, Amit

160

Comments of the Lower Colorado River Authority | Department of...  

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

the Lower Colorado River Authority Comments of the Lower Colorado River Authority Comments of the Lower Colorado River Authority on Implementing the National Broadband Plan by...

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

A new generation of load sharing algorithms: the semi-adaptive load sharing algorithm  

E-Print Network (OSTI)

: Wael, Omar, Tamer, Ashraf and Hazem, who were always there for me. Your support and comfort have given me the strength to go through all the bad times. TABLE OF CONTENTS CHAPTER Page INTRODUCTION A. What is Load Sharing? B. Thesis Outline 2 4...

Morsy, Hazem Kamal

1997-01-01T23:59:59.000Z

162

The optimization problem Genetic Algorithm  

E-Print Network (OSTI)

The optimization problem Genetic Algorithm Particle Swarm Optimization Experimental results for time-power optimization META, October 27-31, 2014 1 / 25 #12;The optimization problem Genetic Algorithm Particle Swarm Optimization Experimental results Conclusions Time and energy optimization Traditionally

Giménez, Domingo

163

CALIFORNIA'S NEXT GENERATION OF LOAD MANAGEMENT STANDARDS  

E-Print Network (OSTI)

the need for new peaking generation capacity and associated transmission and distribution capacity. By reducing capacity, generation and infrastructure costs, it can lower total power costs and customer bills wholesale power spot markets more competitive and efficient and less subject to the abuse of market power

164

Biogass Generator  

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

Another internet tool by: Another internet tool by: Build Your Own Page 1 of 5 Teach...build...learn...renewable energy! Biogas Generator A Renewable Energy Project Kit The Pembina Institute What Is Biogas? Biogas is actually a mixture of gases, usually carbon dioxide and methane. It is produced by a few kinds of microorganisms, usually when air or oxygen is absent. (The absence of oxygen is called "anaerobic conditions.") Animals that eat a lot of plant material, particularly grazing animals such as cattle, produce large amounts of biogas. The biogas is produced not by the cow or elephant, but by billions of microor- ganisms living in its digestive system. Biogas also develops in bogs and at the bottom of lakes, where decaying organic matter builds up under wet and

165

A lower bound for routing on a completely connected optical communication parallel computer  

SciTech Connect

The task of routing a 2-relation on an n-processor completely connected optical communication parallel computer (OCPC) is considered. A lower bound is presented that applies to any randomized distributed algorithm for this task: specifically, it is shown that the expected number of steps required to route a 2-relation is {Omega}({radical} log log n) in the worst case. For comparison, the best upper bound known is O(log log n).

Goldberg, L.A. [Sandia National Labs., Albuquerque, NM (United States); Jerrum, M. [Edinburgh Univ. (United Kingdom). Dept. of Computer Science; MacKenzie, P.D. [Texas Univ., Austin, TX (United States). Dept. of Computer Sciences

1993-08-03T23:59:59.000Z

166

Deutsch and Jozsa's Algorithm Revisited  

E-Print Network (OSTI)

A classical analogue of Deutsch and Jozsa's algorithm is given and its implications on quantum computing is discussed

John W. Cooper

2006-03-27T23:59:59.000Z

167

Shrinking Procedures and Optimal Algorithms  

E-Print Network (OSTI)

Jun 18, 2012 ... Optimal Stochastic Approximation Algorithms for Strongly Convex Stochastic Composite Optimization, II: Shrinking Procedures and Optimal...

Saeed Ghadimi

2012-06-18T23:59:59.000Z

168

THE LOWER SOLAR ATMOSPHERE ROBERT J. RUTTEN  

E-Print Network (OSTI)

of solar composition studies. The first column labeled "radial" describes the overall structure of the workTHE LOWER SOLAR ATMOSPHERE ROBERT J. RUTTEN Sterrekundig Instituut, Postbus 80 000, NL­3508 TA, Utrecht, The Netherlands Abstract. This "rapporteur" report discusses the solar photosphere and low

Rutten, Rob

169

EQUATIONS FOR LOWER BOUNDS ON BORDER RANK  

E-Print Network (OSTI)

EQUATIONS FOR LOWER BOUNDS ON BORDER RANK JONATHAN D. HAUENSTEIN, CHRISTIAN IKENMEYER, AND J of bilinear maps of border rank at most r. We apply these methods to several cases including the case r = 6 multiplication operator M2, which gives a new proof that the border rank of the multiplication of 2 ? 2 matrices

Hauenstein, Jonathan

170

Localized velocity anomalies in the lower mantle  

Science Journals Connector (OSTI)

......projection centred on the Argentina source region. The location...approximately 80" from the Argentina source region. S-waves...Bolivia are dominated by SV energy, and large Sp precursors...closer to the stations than Argentina. Lower mantle velocity anomalies......

Thorne Lay

1983-02-01T23:59:59.000Z

171

EARTH SCIENCES Lower-Division Requirements  

E-Print Network (OSTI)

2012-2013 EARTH SCIENCES Lower-Division Requirements Math 20A_____ 20B_____ 20C_____ 20D (BILD 3) _____ SIO 50* _____ Group A: Earth Science Upper-Division Core Requirements (all courses _____ Introduction to Geophysics SIO 104 _____ Paleobiology and History of Life* Group B: Upper-Division Earth

Constable, Steve

172

Lower Snake River I | Open Energy Information  

Open Energy Info (EERE)

Lower Snake River I Lower Snake River I Jump to: navigation, search Name Lower Snake River I Facility Lower Snake River I Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Puget Sound Energy Developer Puget Sound Energy Energy Purchaser Puget Sound Energy Location South of Pomeroy and north of Pataha Creek in Garfield County Coordinates 46.375632°, -117.703257° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.375632,"lon":-117.703257,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

173

Multipartite entanglement in quantum algorithms  

SciTech Connect

We investigate the entanglement features of the quantum states employed in quantum algorithms. In particular, we analyze the multipartite entanglement properties in the Deutsch-Jozsa, Grover, and Simon algorithms. Our results show that for these algorithms most instances involve multipartite entanglement.

Bruss, D. [Institut fuer Theoretische Physik III, Heinrich-Heine-Universitaet Duesseldorf, D-40225 Duesseldorf (Germany); Macchiavello, C. [Dipartimento di Fisica 'A. Volta' and INFN-Sezione di Pavia, Via Bassi 6, 27100 Pavia (Italy)

2011-05-15T23:59:59.000Z

174

Graph Algorithms Tours in Graphs  

E-Print Network (OSTI)

terminates only at y. Graph Algorithms 14 #12;Combining the Main and the Secondary Cycles Let C = (x a secondary cycle C starting with y. - Combine the cycles C and C into C. Return the cycle C. Graph AlgorithGraph Algorithms Tours in Graphs Graph Algorithms #12;Special Paths and Cycles in Graphs Euler Path

Bar-Noy, Amotz

175

Stability of Coupling Algorithms  

E-Print Network (OSTI)

INTRODUCTION AND MOTIVATION : : : : : : : : : : : : : 1 A. Approaches to solving a coupled system . . . . . . . . . . . 3 B. Common terminology . . . . . . . . . . . . . . . . . . . . . 5 C. Classi cation of coupling algorithms . . . . . . . . . . . . . 7 1... equal, cA = cB = mA = mB = 1 and with dissipation, = 0:5 : : : : : : : : : : : : : : : : 26 10 Conditional stability observed with cA > cB. The material prop- erties: cA = 100; cB = 1; mA = mB = 1; = 1 : : : : : : : : : : : : : 27 11 An unstable...

Akkasale, Abhineeth

2012-07-16T23:59:59.000Z

176

Lower-Temperature Invert Design For Diffusion Barrier  

SciTech Connect

The objective of this analysis is to advance the state of the subsurface facilities design to primarily support the ''Yucca Mountain Science and Engineering Report'' (DOE 2001) and to also support the preparation and revision of System Description Document's Section 2 system descriptions (CRWMS M&O 2001, pp. 9 and 11). The results may also eventually support the License Application (CRWMS M&O 2001, p. 3). The Performance Assessment Department will be the primary user of the information generated and will be used in abstraction modeling for the lower-temperature scenario (CRWMS M&O 200 1, p. 27). This analysis will evaluate the invert relative to the lower- and higher-temperature conditions in accordance with the primary tasks below. Invert design is a major factor in allowing water entering the drift to pass freely and enter the drift floor without surface ponding and in limiting diffusive transport into the host rock. Specific cost effective designs will be conceptualized under the new lower-temperature conditions in this analysis. Interfacing activities and all aspects of Integrated Safety Management and Nuclear Culture principles are included in this work scope by adhering to the respective principles during this design activity and by incorporating safety into the design analysis (CRWMS M&O 2001, p. 8). Primary tasks of this analysis include identifying available design information from existing sources on the invert as a diffusive barrier, developing concepts that reduce the amount steel, and developing other design features that accommodate both lower- and higher-temperature operating modes (CRWMS M&O 2001, p.16).

Bruce Stanley

2001-07-30T23:59:59.000Z

177

Waste Heat Recovery Power Generation with WOWGen  

E-Print Network (OSTI)

Waste Heat Recovery Power Generation with WOWGen? Business Overview WOW operates in the energy efficiency field - one of the fastest growing energy sectors in the world today. The two key products - WOWGen? and WOWClean? provide more... energy at cheaper cost and lower emissions. ? WOWGen? - Power Generation from Industrial Waste Heat ? WOWClean? - Multi Pollutant emission control system Current power generation technology uses only 35% of the energy in a fossil fuel...

Romero, M.

178

A rough set-based effective rule generation method for classification with an application in intrusion detection  

Science Journals Connector (OSTI)

In this paper, we use Rough Set Theory (RST) to address the important problem of generating decision rules for data mining. In particular, we propose a rough set-based approach to mine rules from inconsistent data. It computes the lower and upper approximations for each concept, and then builds concise classification rules for each concept satisfying required classification accuracy. Estimating lower and upper approximations substantially reduces the computational complexity of the algorithm. We use UCI ML Repository data sets to test and validate the approach. We also use our approach on network intrusion data sets captured using our local network from network flows. The results show that our approach produces effective and minimal rules and provides satisfactory accuracy.

Prasanta Gogoi; Dhruba K. Bhattacharyya; Jugal K. Kalita

2013-01-01T23:59:59.000Z

179

Constrained water cloud generator  

Science Journals Connector (OSTI)

The fast generation of large cloudy volumes with imposed cloud cover fractions and ambient vertical profiles is very important for the realistic simulation of atmospheric scenes. The model proposed here is the second step of a two-step model composed on the one hand of a volume generator based on a Fourier filtering method and on the other hand of a physical generator filling the volume with physical parameters. After a description of the general generation scheme, this paper focuses on the simulation of vertical profiles of water content (liquid, vapour) coupled with other state parameters (temperature, pressure, vertical velocity) via thermodynamic and hydrodynamic equations by local forcing of ambient conditions. The method for solving these equations is explained and applied to practical cases. First, by assuming that the actual temperature at the cloud base is equal to the dew temperature and by imposing a moist pseudo-adiabatic temperature gradient between the cloud top and bottom, the temperature profile in the cloud is found. When conditional instability occurs, the initial temperature profile between the ground and the cloud base is iteratively shifted to lower values until absolute stability is reached. Then the liquid water content is calculated by integrating the equation of water conservation, and the water vapour content by assuming that the cloud is everywhere saturated. Eventually, the vertical velocity is estimated by integration of the momentum equation. This method gives results in good agreement with published measurements, analytical and numerical models. Eventually, further developments of the column model, including the effects of phase transitions, turbulence, horizontal motions and mixing with the surrounding medium, are proposed in the concluding section.

Roland P.H. Berton

2008-01-01T23:59:59.000Z

180

Modeling, control and electromagnetic transient simulation of the doubly fed induction generator-based wind energy generation system  

Science Journals Connector (OSTI)

This paper presents the dynamic modeling and the stator-voltage-aligned control (SVAC) strategies of the doubly fed induction generator (DFIG)-based wind energy generation system (WEGS). The state-space dynamic model of the DFIG is derived in the synchronous ... Keywords: EMTP-ATP, double-fed induction generators, engineering education, internal model control, maximum power-point tracking algorithm, stator-voltage-aligned control, wind power generation

Yang Han, Pan Shen

2014-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Thermoelectric generator  

SciTech Connect

A thermoelectric generator unit is described comprising: a hot side heat exchanger including a plate having extruded retention posts projecting from one surface of the plate, and fins adapted for contact with a heating source. The fins are positioned between two of the retention posts. Retention rods are inserted between the retention posts and the base of the fins to retain the fin in thermal contact with the plate surface upon insertion of the retention rod between the engaging surface of the post and the corresponding fin. Thermoelectric semi-conductor modules are in thermal contact with the opposite side of the hot side heat exchanger plate from the contact with the fins. The modules are arranged in a grid pattern so that heat flow is directed into each of the modules from the hot side heat exchanger. The modules are connected electrically so as to combine their electrical output; and a cold side heat exchanger is in thermal contact with the modules acting as a heat sink on the opposite side of the module from the hot side heat exchanger plate so as to produce a thermal gradient across the modules.

Shakun, W.; Bearden, J.H.; Henderson, D.R.

1988-03-29T23:59:59.000Z

182

LOWER TRANSPORT BOUNDS FOR ONEDIMENSIONAL CONTINUUM SCHR  

E-Print Network (OSTI)

of Alabama, Birmingham, AL 35294, U.S.A., E­Mail: stolz@math.uab.edu Dedicated to Joachim Weidmann for the associated whole­line operator, denoted by H, as well as for the associated selfadjoint operator HD on [0 D. DAMANIK, D. LENZ, G. STOLZ (lower di#usion exponents) (4) # - f (p) := lim inf T## log M f (T , p

Damanik, David

183

Downhole hydraulic seismic generator  

DOE Patents (OSTI)

A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole.

Gregory, Danny L. (Corrales, NM); Hardee, Harry C. (Albuquerque, NM); Smallwood, David O. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

184

Rule generation from neural networks  

SciTech Connect

The neural network approach has proven useful for the development of artificial intelligence systems. However, a disadvantage with this approach is that the knowledge embedded in the neural network is opaque. In this paper, we show how to interpret neural network knowledge in symbolic form. We lay down required definitions for this treatment, formulate the interpretation algorithm, and formally verify its soundness. The main result is a formalized relationship between a neural network and a rule-based system. In addition, it has been demonstrated that the neural network generates rules of better performance than the decision tree approach in noisy conditions. 7 refs.

Fu, L. [Univ. of Florida, Gainesville, FL (United States)

1994-08-01T23:59:59.000Z

185

PVT Analysis With A Deconvolution Algorithm  

SciTech Connect

Polyvinyl Toluene (PVT) plastic scintillator is the most common gamma ray detector material used for large systems when only gross counting is needed because of its low cost, robustness, and relative sensitivity. PVT does provide some energy information about the incident photons, as has been demonstrated through the development of Energy Windowing analysis. There is a more sophisticated energy analysis algorithm developed by Symetrica, Inc., and they have demonstrated the application of their deconvolution algorithm to PVT with very promising results. The thrust of such a deconvolution algorithm used with PVT is to allow for identification and rejection of naturally occurring radioactive material, reducing alarm rates, rather than the complete identification of all radionuclides, which is the goal of spectroscopic portal monitors. Under this condition, there could be a significant increase in sensitivity to threat materials. The advantage of this approach is an enhancement to the low cost, robust detection capability of PVT-based radiation portal monitor systems. The success of this method could provide an inexpensive upgrade path for a large number of deployed PVT-based systems to provide significantly improved capability at a much lower cost than deployment of NaI(Tl)-based systems of comparable sensitivity.

Kouzes, Richard T.

2011-02-01T23:59:59.000Z

186

Prospects and Limitations of Algorithmic Cooling  

E-Print Network (OSTI)

Heat-bath algorithmic cooling (AC) of spins is a theoretically powerful effective cooling approach, that (ideally) cools spins with low polarization exponentially better than cooling by reversible entropy manipulations alone. Here, we investigate the limitations and prospects of AC. For non-ideal and semioptimal AC, we study the impact of finite relaxation times of reset and computation spins on the achievable effective cooling. We derive, via simulations, the attainable cooling levels for given ratios of relaxation times using two semioptimal practicable algorithms. We expect this analysis to be valuable for the planning of future experiments. For ideal and optimal AC, we make use of lower bounds on the number of required reset steps, based on entropy considerations, to present important consequences of using AC as a tool for improving signal-to-noise ratio in liquid-state magnetic resonance spectroscopy. We discuss the potential use of AC for noninvasive clinical diagnosis and drug monitoring, where it may have significantly lower specific absorption rate (SAR) with respect to currently used methods.

Gilles Brassard; Yuval Elias; Tal Mor; Yossi Weinstein

2014-04-27T23:59:59.000Z

187

Prime number generation and factor elimination  

E-Print Network (OSTI)

We have presented a multivariate polynomial function termed as factor elimination function,by which, we can generate prime numbers. This function's mapping behavior can explain the irregularities in the occurrence of prime numbers on the number line. Generally the different categories of prime numbers found till date, satisfy the form of this function. We present some absolute and probabilistic conditions for the primality of the number generated by this method. This function is capable of leading to highly efficient algorithms for generating prime numbers.

Vineet Kumar

2014-10-06T23:59:59.000Z

188

MODELING OF LOWER LIMBS FOR VIBROTACTILE COMPENSATION Martin J.-D. Otis, Guillaume Millet, Stephane Beniak, and Jeremy R. Cooperstock  

E-Print Network (OSTI)

. A real-time algorithm is developed, based on an FFT filter-bank and a rheological limb model, which-synthesis filter-bank and rheological modeling of lower limbs. A previous study demonstrated that we could compensate for the structural properties of the tile, obtaining a flat response in the desired frequency

Cooperstock, Jeremy R.

189

A bridge to lower overhead quantum computation  

E-Print Network (OSTI)

Two primary challenges stand in the way of practical large-scale quantum computation, namely achieving sufficiently low error rate quantum gates and implementing interesting quantum algorithms with a physically reasonable number of qubits. In this work we address the second challenge, presenting a new technique, bridge compression, which enables remarkably low volume structures to be found that implement complex computations in the surface code. The surface code has a number of highly desirable properties, including the ability to achieve arbitrarily reliable computation given sufficient qubits and quantum gate error rates below approximately 1%, and the use of only a 2-D array of qubits with nearest neighbor interactions. As such, our compression technique is of great practical relevance.

Austin G. Fowler; Simon J. Devitt

2012-09-04T23:59:59.000Z

190

New Algorithm to Investigate Neural Networks  

E-Print Network (OSTI)

Random cost simulations were introduced as a method to investigate optimization problems in systems with conflicting constraints. Here I study the approach in connection with the training of a feed-forward multilayer perceptron, as used in high energy physics applications. It is suggested to use random cost simulations for generating a set of selected configurations. On each of those final minimization may then be performed by a standard algorithm. For the training example at hand many almost degenerate local minima are thus found. Some effort is spend to discuss whether they lead to equivalent classifications of the data.

Bernd A. Berg

1996-04-01T23:59:59.000Z

191

Introduction Minimal generation  

E-Print Network (OSTI)

Introduction Minimal generation Random generation Minimal and probabilistic generation of finite generation of finite groups #12;Introduction Minimal generation Random generation Some motivation Let x1 random elements of G = x1, . . . , xk . (G is the group generated by x1, . . . , xk : all possible

St Andrews, University of

192

Improved approximation algorithms for a capacitated facility location problem  

E-Print Network (OSTI)

that ordinary randomized rounding rarely generates a feasible solution to the associated set covering problemImproved approximation algorithms for a capacitated facility location problem Fabi'an A. Chudak. There is a set of demand locations that require service from facilities; there is a set of locations at which

Keinan, Alon

193

An LP-based Algorithm to Test Copositivity  

E-Print Network (OSTI)

Abstract. A symmetric matrix is called copositive if it generates a quadratic form taking no negative ...... We implemented Algorithms 1.1, 1.2 and 2 in MATLAB to compare the ... The clique number ?(G) of a given graph G can be obtained from.

2014-11-02T23:59:59.000Z

194

Spherical Harmonic Transform Algorithms  

SciTech Connect

A collection of MATLAB classes for computing spherical harmonic transforms are presented and used to solve simple partial differential equations on the sphere. The spectral synthesis and analysis using fast Fourier transforms and Legendre transforms with the associated Legendre functions are presented in depth. A set of methods associated with a spectral\\_field class provides spectral approximation to the $\\DIV$, $\\CURL$, $\\GRAD$, and $\\LAPL$ in spherical geometr y. Laplace inversion and Helmholtz equation solvers are also methods for this clas s. Investigation of algorithms and analysis for spherical harmonic transform optio ns for parallel high performance computers are discussed in the context of global climate and weather models.

Drake, John B [ORNL; Worley, Patrick H [ORNL; D'Azevedo, Eduardo [ORNL

2008-01-01T23:59:59.000Z

195

Environmental/economic power dispatch using a Hybrid Big BangBig Crunch optimization algorithm  

Science Journals Connector (OSTI)

The combined economic and emission dispatch (CEED) problem where objective function is highly non ... BC) optimization algorithm technique for solving the CEED. Six generator test and IEEE 30 standard...

Yacine Labbi; Djilani Ben Attous

2013-12-01T23:59:59.000Z

196

Spectral energetics of the lower thermosphere  

SciTech Connect

A spectral energetics analysis of the lower thermosphere is carried out using simulated data from the NCAR Thermosphere-Ionosphere General Circulation Model (TIGCM). The results clarify the physical processes through which upwardly propagating semidiurnal tides dissipate and release their energy into the lower thermosphere. Energy residing within the study region is partitioned into reservoirs of available potential energy, irrotational kinetic energy, and nondivergent kinetic energy at four vertical levels. A definition of available potential energy is used that is appropriate for regions of variable mean molecular weight. The reservoirs are further subdivided by vector spherical harmonic wave numbers, and an energy budget is computed for each mode. The source, sink, and transformation terms are obtained using a post-processor that reproduces the contribution of each term in the momentum and thermodynamic equations. The loss terms for the zonal wave number two modes represent the dissipating forces for the semidiurnal tides. Viscosity, heat conduction, and ion drag represent the primary dissipative forces. Numerical smoothing within the TIGCM, representing the subgrid-scale diffusion, is found to have a non-negligible contribution to the tidal dissipation. A small terdiurnal tide that is excited by ion drag is also observed in the model. A sensitivity analysis is carried out to ascertain the effects of the seasonal cycle, solar cycle, UT, and geomagnetic activity. At solar maximum, solar heating at the trough of the tide is an important dissipative force; the altitude of tidal dissipation is correspondingly lower. At high values of geomagnetic forcing, the propagating semidiurnal tide is completely dissipated within the study region.

Raskin, R.G.

1992-01-01T23:59:59.000Z

197

OPEC agrees to lower oil prices, production  

Science Journals Connector (OSTI)

OPEC agrees to lower oil prices, production ... The attempt to stabilize prices and salvage some of OPEC's eroding control of the world oil market forced the cartel to make the first price cut in its history. ... U.S. government officials, predicting that the price ultimately would fall to between $25 and $27 per barrel from the new benchmark level of $29, said the new price would increase domestic production of goods and services 0.4% and cut consumer prices in the U.S. nearly 1.0%. ...

1983-03-21T23:59:59.000Z

198

Pulverizer performance upgrades lower fuel costs  

SciTech Connect

Between 2002 and 2005, combustion equipment modifications were carried out at St. Johns River Power Plant in Jacksonville, FL. The effort succeeded in obtaining the desired emission reductions and to increase petroleum coke consumption. Since 2005 the boilers typically fired a blend of 70% Colombia coal and 30% delayed petroleum coke. To realize significant fuel savings, the pulverizer capacity was increased by 14% to allow a lower grade coal to be used. The article describes the changes made to the pulverizer to allow 11,800 Btu/pound coal to be burnt, with annual savings of $6.3 m beginning in 2006. 4 figs., 1 tab.

Hansen, T.

2007-05-15T23:59:59.000Z

199

Optimal operation of hydrothermal systems with Hydrological Scenario Generation through Bootstrap and Periodic Autoregressive Models  

Science Journals Connector (OSTI)

In electrical power systems with strong hydro generation, the use of adequate techniques to generate synthetic hydrological scenarios is extremely important for the evaluation of the ways the system behaves in order to meet the forecast energy demand. This paper proposes a new model to generate natural inflow energy scenarios in the long-term operation planning of large-sized hydrothermal systems. This model is based on the Periodic Autoregressive Model, PAR (p), where the identification of the p orders is based on the significance of the Partial Autocorrelation Function (PACF) estimated via Bootstrap, an intensive computational technique. The scenarios generated through this new technique were applied to the operation planning of the Brazilian Electrical System (BES), using the previously developed methodology of Stochastic Dynamic Programming based on Convex Hull algorithm (SDP-CHull). The results show that identification via Bootstrap is considerably more parsimonious, leading to the identification of lower orders models in most cases which retains the statistical characteristics of the original series. Additionally it presents a closer total mean operation cost when compared to the cost obtained via historic series.

Reinaldo Castro Souza; Andr Lu?s Marques Marcato; Bruno Henriques Dias; Fernando Luiz Cyrino Oliveira

2012-01-01T23:59:59.000Z

200

Numerical Simulation of a Natural Circulation Steam Generator  

E-Print Network (OSTI)

Numerical Simulation of a Natural Circulation Steam Generator W. Linzer \\Lambda , K. Ponweiser circulation steam generator. We focus on a model with a simple geometry consisting of two vertical pipes properties of water and steam. We present a numerical algorithm based on an explicit upwind discretization

Weinmüller, Ewa B.

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Quantitative crystal structure descriptors from multiplicative congruential generators  

Science Journals Connector (OSTI)

Certain number-theoretic relations, known as multiplicative congruential generators, are developed into quantitative crystal structure descriptors, facilitating a linearization procedure that eventually allows for a concise, fully reconstructable representation of structural information. Potential applications are related to the computational storage, retrieval and analysis of crystal structures, their algorithmic generation in the first place, and their combinatorial enumeration and classification.

Hornfeck, W.

2012-01-12T23:59:59.000Z

202

Using random number generators in Monte Carlo simulations  

Science Journals Connector (OSTI)

One of the standard tests for Monte Carlo algorithms and for testing random number generators is the two-dimensional Ising model. We show that at least in the present case, where we study the two-state clock model, good random number generators can give inconsistent values for the critical temperature.

F. J. Resende and B. V. Costa

1998-10-01T23:59:59.000Z

203

Security Policy Testing via Automated Program Code Generation (Extended Abstract)  

E-Print Network (OSTI)

-language-specific coverage crite- ria [5, 6] and test generation algorithms [4, 5]. One limitation of these previous testingSecurity Policy Testing via Automated Program Code Generation (Extended Abstract) Ting Yu North's sophisticated access control policies. Similar to quality assurance of software systems, testing techniques [4

Xie, Tao

204

Environmental analysis of Lower Pueblo/Lower Los Alamos Canyon, Los Alamos, New Mexico  

SciTech Connect

The radiological survey of the former radioactive waste treatment plant site (TA-45), Acid Canyon, Pueblo Canyon, and Los Alamos Canyon found residual contamination at the site itself and in the channel and banks of Acid, Pueblo, and lower Los Alamos Canyons all the way to the Rio Grande. The largest reservoir of residual radioactivity is in lower Pueblo Canyon, which is on DOE property. However, residual radioactivity does not exceed proposed cleanup criteria in either lower Pueblo or lower Los Alamos Canyons. The three alternatives proposed are (1) to take no action, (2) to construct a sediment trap in lower Pueblo Canyon to prevent further transport of residual radioactivity onto San Ildefonso Indian Pueblo land, and (3) to clean the residual radioactivity from the canyon system. Alternative 2, to cleanup the canyon system, is rejected as a viable alternative. Thousands of truckloads of sediment would have to be removed and disposed of, and this effort is unwarranted by the low levels of contamination present. Residual radioactivity levels, under either present conditions or projected future conditions, will not result in significant radiation doses to persons exposed. Modeling efforts show that future transport activity will not result in any residual radioactivity concentrations higher than those already existing. Thus, although construction of a sediment trap in lower Pueblo Canyon is a viable alternative, this effort also is unwarranted, and the no-action alternative is the preferred alternative.

Ferenbaugh, R.W.; Buhl, T.E.; Stoker, A.K.; Becker, N.M.; Rodgers, J.C.; Hansen, W.R.

1994-12-01T23:59:59.000Z

205

Non adiabatic quantum search algorithms  

E-Print Network (OSTI)

We present two new continuous time quantum search algorithms similar to the adiabatic search algorithm, but now without an adiabatic evolution. We find that both algorithms work for a wide range of values of the parameters of the Hamiltonian, and one of them has, as an additional feature that, for values of time larger than a characteristic one, it will converge to a state which can be close to the searched state.

A. Perez; A. Romanelli

2007-06-08T23:59:59.000Z

206

AN ENGINE OIL LIFE ALGORITHM.  

E-Print Network (OSTI)

??An oil-life algorithm to calculate the remaining percentage of oil life is presented as a means to determine the right time to change the oil (more)

Bommareddi, Anveshan

2009-01-01T23:59:59.000Z

207

Optimization Online - Coordinate descent algorithms  

E-Print Network (OSTI)

Dec 1, 2014 ... Stephen Wright(swright ***at*** cs.wisc.edu). Abstract: Coordinate descent algorithms solve optimization problems by successively minimizing...

Stephen Wright

2014-12-01T23:59:59.000Z

208

Messy genetic algorithms: Recent developments  

SciTech Connect

Messy genetic algorithms define a rare class of algorithms that realize the need for detecting appropriate relations among members of the search domain in optimization. This paper reviews earlier works in messy genetic algorithms and describes some recent developments. It also describes the gene expression messy GA (GEMGA)--an {Omicron}({Lambda}{sup {kappa}}({ell}{sup 2} + {kappa})) sample complexity algorithm for the class of order-{kappa} delineable problems (problems that can be solved by considering no higher than order-{kappa} relations) of size {ell} and alphabet size {Lambda}. Experimental results are presented to demonstrate the scalability of the GEMGA.

Kargupta, H. [Los Alamos National Lab., NM (United States). Computational Science Methods Group

1996-09-01T23:59:59.000Z

209

Object-oriented algorithmic laboratory for ordering sparse matrices  

SciTech Connect

We focus on two known NP-hard problems that have applications in sparse matrix computations: the envelope/wavefront reduction problem and the fill reduction problem. Envelope/wavefront reducing orderings have a wide range of applications including profile and frontal solvers, incomplete factorization preconditioning, graph reordering for cache performance, gene sequencing, and spatial databases. Fill reducing orderings are generally limited to--but an inextricable part of--sparse matrix factorization. Our major contribution to this field is the design of new and improved heuristics for these NP-hard problems and their efficient implementation in a robust, cross-platform, object-oriented software package. In this body of research, we (1) examine current ordering algorithms, analyze their asymptotic complexity, and characterize their behavior in model problems, (2) introduce new and improved algorithms that address deficiencies found in previous heuristics, (3) implement an object-oriented library of these algorithms in a robust, modular fashion without significant loss of efficiency, and (4) extend our algorithms and software to address both generalized and constrained problems. We stress that the major contribution is the algorithms and the implementation; the whole being greater than the sum of its parts. The initial motivation for implementing our algorithms in object-oriented software was to manage the inherent complexity. During our research came the realization that the object-oriented implementation enabled new possibilities augmented algorithms that would not have been as natural to generalize from a procedural implementation. Some extensions are constructed from a family of related algorithmic components, thereby creating a poly-algorithm that can adapt its strategy to the properties of the specific problem instance dynamically. Other algorithms are tailored for special constraints by aggregating algorithmic components and having them collaboratively generate the global ordering. Our software laboratory, ''Spinole'', implements state-of-the-art ordering algorithms for sparse matrices and graphs. We have used it to examine and augment the behavior of existing algorithms and test new ones. Its 40,000+ lilies of C++ code includes a base library test drivers, sample applications, and interfaces to C, C++, Matlab, and PETSc. Spinole is freely available and can be built on a variety of UNIX platforms as well as WindowsNT.

Kumfert, G K

2000-05-01T23:59:59.000Z

210

Modeling of the electron distribution based on bremsstrahlung emission during lower hybrid current drive on PLT  

SciTech Connect

Lower hybrid current drive requires the generation of a high energy electron tail anisotropic in velocity. Measurements of bremsstrahlung emission produced by this tail are compared with the calculated emission from reasonable model distributions. The physical basis and the sensitivity of this modeling process are described and the plasma properties of current driven discharges which can be derived from the model are discussed.

Stevens, J.E.; von Goeler, S.; Bernabei, S.; Bitter, M.; Chu, T.K.; Efthimion, P.; Fisch, N.; Hooke, W.; Hosea, J.; Jobes, F.

1985-03-01T23:59:59.000Z

211

I Lower Yakima Valley Wetlands and Riparian  

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

I I Lower Yakima Valley Wetlands and Riparian - Restoration Project \ , Final Environmental Assessment DOENo. 0941 c Bonneville Power kdmi.nistration, Yakama Indian Nation, Bureawof Indian Affairs % J e;r%mBlYTlON OF THIS DOCUMENT IS UNLIMITED DISCLAIMER This report was .prepared as a n account of work sponsored by an agency of t h e United States Government. Neither t h e United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes a n y legal liability or responsibility for t h e accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial

212

Lower Cost, Higher Performance Carbon Fiber  

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

David (Dave) Warren David (Dave) Warren Field Technical Manager Transportation Materials Research Oak Ridge National Laboratory P.O. Box 2009, M/S 8050 Oak Ridge, Tennessee 37831-8050 Phone: 865-574-9693 Fax: 865-574-0740 Email: WarrenCD@ORNL.GOV Lower Cost, Higher Performance Carbon Fiber 14 February 2011 2 Managed by UT-Battelle for the U.S. Department of Energy Presentation_name Questions for Today Materials How can the cost of carbon fiber suitable for higher performance applications (H 2 Storage) be developed? H 2 Storage requirements implies Aerospace grade fibers. Can we build off of work previously done for more modest structural applications? To accurately answer: We need to know the minimum performance and maximum cost requirements of the fiber not simply the properties of current fiber.

213

Lower Valley Energy Inc | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search Name Lower Valley Energy Inc Place Idaho Utility Id 11273 References Energy Information Administration.[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png C-1 Small Commercial Commercial C-2 Large Power Service Commercial I-1 Small Irrigation Service Commercial I-2 Large Irrigation Service Commercial I-3 Small Irrigation Optional Commercial L-1 Street and Yard Light Service-100W Sodium Vapor Lighting L-1 Street and Yard Light Service-175W Sodium Vapor Lighting L-1 Street and Yard Light Service-200W Sodium Vapor Lighting L-1 Street and Yard Light Service-250W Sodium Vapor Lighting L-1 Street and Yard Light Service-400W Sodium Vapor Lighting

214

Light water reactor lower head failure analysis  

SciTech Connect

This document presents the results from a US Nuclear Regulatory Commission-sponsored research program to investigate the mode and timing of vessel lower head failure. Major objectives of the analysis were to identify plausible failure mechanisms and to develop a method for determining which failure mode would occur first in different light water reactor designs and accident conditions. Failure mechanisms, such as tube ejection, tube rupture, global vessel failure, and localized vessel creep rupture, were studied. Newly developed models and existing models were applied to predict which failure mechanism would occur first in various severe accident scenarios. So that a broader range of conditions could be considered simultaneously, calculations relied heavily on models with closed-form or simplified numerical solution techniques. Finite element techniques-were employed for analytical model verification and examining more detailed phenomena. High-temperature creep and tensile data were obtained for predicting vessel and penetration structural response.

Rempe, J.L.; Chavez, S.A.; Thinnes, G.L. [EG and G Idaho, Inc., Idaho Falls, ID (United States)] [and others

1993-10-01T23:59:59.000Z

215

Will customer choice always lower costs?  

SciTech Connect

Since competition may either increase or decrease electricity costs for individual customers, regulators need the authority and tools to determine whether retail competition will result in a lower or higher cost of electric service, and whether anti-competitive conduct can be detected. Today`s regulations of the electric industry generally allows only a single supplier to serve all retail customers within an exclusive service territory. Due to changes in technology, law, and in what might best be called philosophy, many large customers are now being joined by independent power producers, marketers and brokers in arguing that a multitude of suppliers should be allowed to compete to serve retail customers. Thus, a critical issue regulators and legislatures must address is whether or not to allow more than one supplier of electricity at the retail level. The primary economic rationale for permitting exclusive service territories and a single retail provider is the existence of a natural monopoly. The driving force for retail competition, on the other hand, is the perception that a less costly non-utility option is available for a number of customers. Conventional wisdom seems to see natural monopoly and lower-cost options for customers as mutually exclusive alternatives. That is, it is often thought that there can be no less costly alternative for any customer if a natural monopoly exists. Conversely, if there is a cheaper alternative for any customer, many see this as evidence that a natural monopoly no longer exists, and that free entry into the retail market should be allowed.

Corneli, S.B.

1996-10-01T23:59:59.000Z

216

Understanding and Managing Generation Y  

E-Print Network (OSTI)

There are four generations in the workplace today; they consist of the Silent Generation, Baby Boom Generation, Generation X, and Generation Y. Generation Y, being the newest generation, is the least understood generation although marketers...

Wallace, Kevin

2007-12-14T23:59:59.000Z

217

Lower Cost Carbon Fiber Precursors | Department of Energy  

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

Lower Cost Carbon Fiber Precursors Lower Cost Carbon Fiber Precursors 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June...

218

Brain insulin lowers circulating BCAA levels by inducing hepatic...  

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

Brain insulin lowers circulating BCAA levels by inducing hepatic BCAA catabolism. Brain insulin lowers circulating BCAA levels by inducing hepatic BCAA catabolism. Abstract:...

219

A new stochastic framework for optimal generation scheduling considering wind power sources  

Science Journals Connector (OSTI)

This paper suggests a new stochastic framework based on 2 m+1 point estimate method PEM to solve the mid-term generation scheduling SMGS problem. The new formulation makes use of an adaptive modified bat algorithm and a novel self-adaptive wavelet mutation ... Keywords: Mid-Term Generation Scheduling Mgs, Modified Bat Algorithm, Point Estimate Methods, Self-Adaptive Strategy, Wind Power Generation

Sajad Tabatabaei

2014-05-01T23:59:59.000Z

220

An algorithm for the difference between set covers  

Science Journals Connector (OSTI)

A set cover for a set S is a collection C of special subsets whose union is S . Given covers A and B for two sets, the set-cover difference problem is to construct a new cover for the elements covered by A but not B . Applications include testing equivalence of set covers and maintaining a set cover dynamically. In this paper, we solve the set-cover difference problem by defining a difference operation A - B , which turns out to be a pseudocomplement on a distributive lattice. We give an algorithm for constructing this difference, and show how to implement the algorithm for two examples with applications in computer science: face covers on a hypercube, and rectangle covers on a grid. We derive an upper bound on the time complexity of the algorithm, and give upper and lower bounds on complexity for face covers and rectangle covers.

D.S. Franzblau; G. Xenakis

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Fixed Parameter Algorithms Daniel Marx  

E-Print Network (OSTI)

, for example k-CLIQUE and k-INDEPENDENT SET, no FPT algorithm is known. Can we show that these problems if and only if it has a vertex cover of size n - k. Transforming an INDEPENDENT SET instance (G, k, but INDEPENDENT SET is not known to be FPT. Fixed Parameter Algorithms ­ p.5/41 #12;Parameterized reduction

Fondements et Applications, Université Paris 7

222

ALGEBRAIC AND NUMERICAL ALGORITHMS 1  

E-Print Network (OSTI)

ALGEBRAIC AND NUMERICAL ALGORITHMS 1 Ioannis Z. Emiris National Kapodistrian University of Athens as manipulation with truncated series and algebraic sets. Such problems can be solved based on the error by employing various nontrivial computational techniques such as the Euclidean algorithm and continuous

Tsigaridas, Elias

223

Accidental Algorithms Leslie G. Valiant  

E-Print Network (OSTI)

Accidental Algorithms Leslie G. Valiant Division of Engineering and Applied Sciences Harvard also show a similar dichtomy for a vertex cover problem. To derive completeness results we use a new show in this way that 2CNF, the parity problem for 2CNF, is P-complete. To derive efficient algorithms

Valiant, Leslie

224

L21: "Irregular" Graph Algorithms  

E-Print Network (OSTI)

11/11/10 1 L21: "Irregular" Graph Algorithms November 11, 2010 Administrative ·Class cancelled Monday, November 22, 11:59 PM Today we will cover Successive Over Relaxation. Here is the sequential code ·Irregular parallel computation - Sparse matrix operations (last time) and graph algorithms (this time

Hall, Mary W.

225

ALGEBRAIC AND NUMERICAL ALGORITHMS1  

E-Print Network (OSTI)

ALGEBRAIC AND NUMERICAL ALGORITHMS1 Ioannis Z. Emiris National Kapodistrian University of Athens as manipulation with truncated series and algebraic sets. Such problems can be solved based on the error by employing various nontrivial computational techniques such as the Euclidean algorithm and continuous

Tsigaridas, Elias

226

Machine-learning algorithm aims to accelerate materials discovery | Argonne  

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

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Machine-learning algorithm aims to accelerate materials discovery July 16, 2013 Tweet EmailPrint A research team led by Argonne Leadership Computing Facility computational chemist Anatole von Lilienfeld is developing an algorithm that combines quantum chemistry with machine learning (artificial intelligence) to enable atomistic simulations that predict the properties of new materials with unprecedented speed. From innovations in medicine to novel materials for next-generation batteries, this approach could greatly accelerate the pace of materials discovery, with high-performance

227

Janis-Newman algorithm: simplifications and gauge field transformation  

E-Print Network (OSTI)

The Janis-Newman algorithm is an old but very powerful tool to generate rotating solutions from static ones through a set of complex coordinate transformations. Several solutions have been derived in this way, including solutions with gauge fields. However, the transformation of the latter was so far always postulated as an ad hoc result. In this paper we propose a generalization of the procedure, extending it to the transformation of the gauge field. We also present a simplification of the algorithm due to G. Giampieri. We illustrate our prescription on the Kerr-Newman solution.

Harold Erbin

2015-02-16T23:59:59.000Z

228

A Genetic Algorithm for Coverage Problems  

E-Print Network (OSTI)

or all classes covered) Genetic Algorithm step on P producing child population C: Roulette genetic algorithm 2. A GENETIC ALGORITHM FOR COVER- AGE PROBLEMS We have devised a genetic algorithmA Genetic Algorithm for Coverage Problems Colin Johnson Computing Laboratory, University of Kent

Kent, University of

229

Generalized Greedy Algorithm for Shortest Superstring  

E-Print Network (OSTI)

an approximation factor of 2. The greedy set covering algorithm. To see that the approximation factor of GreedyHn factor approximation algorithm, using the greedy set cover algorithm [11], where Hn = 1 + 1 2 + 1 of optimal set and generalize the primitive greedy algorithm. The generalized algorithm can be reduced

Markowitch, Olivier

230

A combinatorial algorithm for MAX CSP  

Science Journals Connector (OSTI)

We consider the problem MAX CSP over multi-valued domains with variables ranging over sets of size si ? s and constraints involving kj ? k variables. We study two algorithms with approximation ratios A ... Keywords: algorithmical approximation, analysis of algorithms, combinatorial problems, databases, design of algorithms, graph algorithms

Mayur Datar; Toms Feder; Aristides Gionis; Rajeev Motwani; Rina Panigrahy

2003-03-01T23:59:59.000Z

231

960 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 56, NO. 3, MARCH 2010 Low-Complexity Soft-Decoding Algorithms  

E-Print Network (OSTI)

to the iterative decoding of Reed-Solomon (RS) codes. The presented methodology utilizes an architecture in which-Decoding Algorithms for Reed­Solomon Codes--Part II: Soft-Input Soft-Output Iterative Decoding Jason Bellorado with the presented methodology. The complexity of the proposed algorithm is significantly lower than these existing

Ping, Li

232

The multi-niche crowding genetic algorithm: Analysis and applications  

SciTech Connect

The ability of organisms to evolve and adapt to the environment has provided mother nature with a rich and diverse set of species. Only organisms well adapted to their environment can survive from one generation to the next, transferring on the traits, that made them successful, to their offspring. Competition for resources and the ever changing environment drives some species to extinction and at the same time others evolve to maintain the delicate balance in nature. In this disertation we present the multi-niche crowding genetic algorithm, a computational metaphor to the survival of species in ecological niches in the face of competition. The multi-niche crowding genetic algorithm maintains stable subpopulations of solutions in multiple niches in multimodal landscapes. The algorithm introduces the concept of crowding selection to promote mating among members with qirnilar traits while allowing many members of the population to participate in mating. The algorithm uses worst among most similar replacement policy to promote competition among members with similar traits while allowing competition among members of different niches as well. We present empirical and theoretical results for the success of the multiniche crowding genetic algorithm for multimodal function optimization. The properties of the algorithm using different parameters are examined. We test the performance of the algorithm on problems of DNA Mapping, Aquifer Management, and the File Design Problem. Applications that combine the use of heuristics and special operators to solve problems in the areas of combinatorial optimization, grouping, and multi-objective optimization. We conclude by presenting the advantages and disadvantages of the algorithm and describing avenues for future investigation to answer other questions raised by this study.

Cedeno, W.

1995-09-01T23:59:59.000Z

233

Generation of a suite of 3D computer-generated breast phantoms from a limited set of human subject data  

SciTech Connect

Purpose: The authors previously reported on a three-dimensional computer-generated breast phantom, based on empirical human image data, including a realistic finite-element based compression model that was capable of simulating multimodality imaging data. The computerized breast phantoms are a hybrid of two phantom generation techniques, combining empirical breast CT (bCT) data with flexible computer graphics techniques. However, to date, these phantoms have been based on single human subjects. In this paper, the authors report on a new method to generate multiple phantoms, simulating additional subjects from the limited set of original dedicated breast CT data. The authors developed an image morphing technique to construct new phantoms by gradually transitioning between two human subject datasets, with the potential to generate hundreds of additional pseudoindependent phantoms from the limited bCT cases. The authors conducted a preliminary subjective assessment with a limited number of observers (n= 4) to illustrate how realistic the simulated images generated with the pseudoindependent phantoms appeared. Methods: Several mesh-based geometric transformations were developed to generate distorted breast datasets from the original human subject data. Segmented bCT data from two different human subjects were used as the 'base' and 'target' for morphing. Several combinations of transformations were applied to morph between the 'base' and 'target' datasets such as changing the breast shape, rotating the glandular data, and changing the distribution of the glandular tissue. Following the morphing, regions of skin and fat were assigned to the morphed dataset in order to appropriately assign mechanical properties during the compression simulation. The resulting morphed breast was compressed using a finite element algorithm and simulated mammograms were generated using techniques described previously. Sixty-two simulated mammograms, generated from morphing three human subject datasets, were used in a preliminary observer evaluation where four board certified breast radiologists with varying amounts of experience ranked the level of realism (from 1 ='fake' to 10 ='real') of the simulated images. Results: The morphing technique was able to successfully generate new and unique morphed datasets from the original human subject data. The radiologists evaluated the realism of simulated mammograms generated from the morphed and unmorphed human subject datasets and scored the realism with an average ranking of 5.87 {+-} 1.99, confirming that overall the phantom image datasets appeared more 'real' than 'fake.' Moreover, there was not a significant difference (p > 0.1) between the realism of the unmorphed datasets (6.0 {+-} 1.95) compared to the morphed datasets (5.86 {+-} 1.99). Three of the four observers had overall average rankings of 6.89 {+-} 0.89, 6.9 {+-} 1.24, 6.76 {+-} 1.22, whereas the fourth observer ranked them noticeably lower at 2.94 {+-} 0.7. Conclusions: This work presents a technique that can be used to generate a suite of realistic computerized breast phantoms from a limited number of human subjects. This suite of flexible breast phantoms can be used for multimodality imaging research to provide a known truth while concurrently producing realistic simulated imaging data.

Hsu, Christina M. L. [Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 and Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Palmeri, Mark L. [Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States); Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Segars, W. Paul [Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Veress, Alexander I. [Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195 (United States); Dobbins, James T. III [Carl E. Ravin Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Department of Physics, Duke University, Durham, North Carolina 27708 (United States)

2013-04-15T23:59:59.000Z

234

Natural Gas Productive Capacity for the Lower-48 States  

Gasoline and Diesel Fuel Update (EIA)

for the Lower-48 States for the Lower-48 States 6/4/01 Click here to start Table of Contents Natural Gas Productive Capacity for the Lower-48 States Natural Gas Productive Capacity for the Lower-48 States Natural Gas Productive Capacity for the Lower-48 States - Summary - Natural Gas Productive Capacity for the Lower-48 States - Summary - PPT Slide Natural Gas Productive Capacity for the Lower-48 States - Summary - Natural Gas Productive Capacity for the Lower-48 States - Methodology - Natural Gas Productive Capacity for the Lower-48 States - Methodology - Natural Gas Productive Capacity for the Lower-48 States - Methodology - PPT Slide PPT Slide PPT Slide PPT Slide PPT Slide PPT Slide PPT Slide PPT Slide PPT Slide PPT Slide PPT Slide Other Areas PPT Slide PPT Slide PPT Slide

235

Dynamic Algorithm for Space Weather Forecasting System  

E-Print Network (OSTI)

We propose to develop a dynamic algorithm that intelligently analyzes existing solar weather data and constructs an increasingly more accurate equation/algorithm for predicting solar weather accurately in real time. This dynamic algorithm analyzes a...

Fischer, Luke D.

2011-08-08T23:59:59.000Z

236

Next Generation CANDU Performance Assurance  

SciTech Connect

AECL is developing a next generation CANDU design to meet market requirements for low cost, reliable energy supplies. The primary product development objective is to achieve a capital cost substantially lower than the current nuclear plant costs, such that the next generation plant will be competitive with alternative options for large-scale base-load electricity supply. However, other customer requirements, including safety, low-operating costs and reliable performance, are being addressed as equally important design requirements. The main focus of this paper is to address the development directions that will provide performance assurance. The next generation CANDU is an evolutionary extension of the proven CANDU 6 design. There are eight CANDU 6 units in operation in four countries around the world and further three units are under construction. These units provide a sound basis for projecting highly reliable performance for the next generation CANDU. In addition, the next generation CANDU program includes development and qualification activities that will address the new features and design extensions in the advanced plant. To limit product development risk and to enhance performance assurance, the next generation CANDU design features and performance parameters have been carefully reviewed during the concept development phase and have been deliberately selected so as to be well founded on the existing CANDU knowledge base. Planned research and development activities are required only to provide confirmation of the projected performance within a modest extension of the established database. Necessary qualification tests will be carried out within the time frame of the development program, to establish a proven design prior to the start of a construction project. This development support work coupled with ongoing AECL programs to support and enhance the performance and reliability of the existing CANDU plants will provide sound assurance that the next generation CANDU plants will meet customer expectations. (authors)

Wren, David J.; Allsop, P.J.; Hopwood, J.M. [Atomic Energy of Canada Ltd., Ontario (Canada)

2002-07-01T23:59:59.000Z

237

Next Generation Radioisotope Generators | Department of Energy  

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

» Next Generation Radioisotope Generators » Next Generation Radioisotope Generators Next Generation Radioisotope Generators Advanced Stirling Radioisotope Generator (ASRG) - The ASRG is currently being developed as a high-efficiency RPS technology to support future space missions on the Martian surface or in the vacuum of space. This system uses Stirling convertors, which have moving parts to mechanically convert heat to electricity. This power conversion system, if successfully deployed, will reduce the weight of each RPS and the amount of Pu-238 needed per mission. A HISTORY OF MISSION SUCCESSES For over fifty years, the Department of Energy has enabled space exploration on 27 missions by providing safe reliable radioistope power systems and radioisotope heater units for NASA, Navy and Air Force.

238

Generation gaps in engineering?  

E-Print Network (OSTI)

There is much enthusiastic debate on the topic of generation gaps in the workplace today; what the generational differences are, how to address the apparent challenges, and if the generations themselves are even real. ...

Kim, David J. (David Jinwoo)

2008-01-01T23:59:59.000Z

239

Phase transition in a stochastic prime-number generator  

Science Journals Connector (OSTI)

We introduce a stochastic algorithm that acts as a prime-number generator. The dynamics of this algorithm gives rise to a continuous phase transition, which separates a phase where the algorithm is able to reduce a whole set of integers into primes and a phase where the system reaches a frozen state with low prime density. We present both numerical simulations and an analytical approach in terms of an annealed approximation, by means of which the data are collapsed. A critical slowing-down phenomenon is also outlined.

Bartolo Luque; Lucas Lacasa; Octavio Miramontes

2007-07-18T23:59:59.000Z

240

Validation of the rapid geoacoustic characterization (RGC) algorithm  

Science Journals Connector (OSTI)

The rapid geoacoustic characterization (RGC) algorithm was developed to perform near?real time geoacoustic inversion in shallow water using the striations of passing surface ships of opportunity. It has been applied to inversion workshop data [Heaney IEEE J. Ocean Eng. 2004 (1)] and measured surface ship data [Heaney IEEE J. Ocean Eng. 2004 (1)]. It is currently under review for inclusion in the Navys Ocean Atmospheric Media Library (OAML). As part of the OAML approval process a set of seven test cases was generated for the independent validation and verification of the code. These cases span the range of simulated to measured data and range?independent to range?dependent environments. The method as well as results of the application of this algorithm to these test cases will be presented. The limitations of the algorithm will be addressed.

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Berkeley Algorithms Help Researchers Understand Dark Energy  

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

Berkeley Algorithms Help Researchers Understand Dark Energy Berkeley Algorithms Help Researchers Understand Dark Energy November 24, 2014 | Tags: Astrophysics Contact: Linda Vu, +1...

242

Hydrogen Generation by Electrolysis  

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

Better Engineered Solutions. Better Engineered Solutions. What Listening Generates. Better Engineered Solutions. What Listening Generates. Hydrogen Generation by Electrolysis September 2004 Steve Cohen Hydrogen Generation by Electrolysis September 2004 Steve Cohen NREL H 2 Electrolysis - Utility Integration Workshop NREL H 2 Electrolysis - Utility Integration Workshop 2 Hydrogen Generation by Electrolysis Hydrogen Generation by Electrolysis  Intro to Teledyne Energy Systems  H 2 Generator Basics & Major Subsystems  H 2 Generating & Storage System Overview  Electrolysis System Efficiency & Economics  Focus for Attaining DOE H 2 Production Cost Goals 3 Teledyne Energy Systems Locations - ISO 9001 Teledyne Energy Systems Locations - ISO 9001 Hunt Valley, Maryland  State-of-the-art thermoelectric,

243

Approximation Algorithms Vijay V. Vazirani  

E-Print Network (OSTI)

: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 3 I COMBINATORIAL ALGORITHMS 2 Set cover and its application to shortest superstring­duality : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 52 11 Rounding applied to set cover : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 59 12 LP­duality based analysis for set cover

Porat, Ely

244

Randomized algorithms for reliable broadcast  

E-Print Network (OSTI)

In this thesis, we design randomized algorithms for classical problems in fault tolerant distributed computing in the full-information model. The full-information model is a strong adversarial model which imposes no ...

Vaikuntanathan, Vinod

2009-01-01T23:59:59.000Z

245

Standards for graph algorithm primitives  

E-Print Network (OSTI)

It is our view that the state of the art in constructing a large collection of graph algorithms in terms of linear algebraic operations is mature enough to support the emergence of a standard set of primitive building ...

Mattson, Tim

246

Fully relativistic lattice Boltzmann algorithm  

SciTech Connect

Starting from the Maxwell-Juettner equilibrium distribution, we develop a relativistic lattice Boltzmann (LB) algorithm capable of handling ultrarelativistic systems with flat, but expanding, spacetimes. The algorithm is validated through simulations of a quark-gluon plasma, yielding excellent agreement with hydrodynamic simulations. The present scheme opens the possibility of transferring the recognized computational advantages of lattice kinetic theory to the context of both weakly and ultrarelativistic systems.

Romatschke, P. [Frankfurt Institute for Advanced Studies, D-60438 Frankfurt (Germany); Mendoza, M. [ETH Zuerich, Computational Physics for Engineering Materials, Institute for Building Materials, Schafmattstrasse 6, HIF, CH-8093 Zuerich (Switzerland); Succi, S. [Istituto per le Applicazioni del Calcolo C.N.R., Via dei Taurini, 19 I-00185, Rome (Italy); Freiburg Institute for Advanced Studies, Albertstrasse, 19, D-79104, Freiburg (Germany)

2011-09-15T23:59:59.000Z

247

Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation  

E-Print Network (OSTI)

Real-Time Deferrable Load Control: Handling the Uncertainties of Renewable Generation Lingwen Gan for handling the un- certainties of renewable generation. Traditionally, demand response has been focused in renewable generation. In this paper, we propose a real-time distributed deferrable load control algorithm

Low, Steven H.

248

Power Generation Loading Optimization using a Multi-Objective Constraint-Handling Method via  

E-Print Network (OSTI)

results of the power generation loading optimization based on a coal-fired power plant demonstrates algorithm in solving significant industrial problems. I. INTRODUCTION Most power generation plants have.e., heat rate/NOx vs. load, for a given plant condition. There are two objectives for the power generation

Li, Xiaodong

249

Topology synthesis of analog circuits based on adaptively generated building blocks  

Science Journals Connector (OSTI)

This paper presents an automated analog synthesis tool for topology generation and subsequent circuit sizing. Though sizing is indispensable, the paper mainly concentrates on topology generation. A new kind of GA is developed, where a fraction of the ... Keywords: automated design, genetic algorithm, topology generation

Angan Das; Ranga Vemuri

2008-06-01T23:59:59.000Z

250

Utility Solar Generation Valuation Methods  

SciTech Connect

Tucson Electric Power (TEP) developed, tested and verified the results of a new and appropriate method for accurately evaluating the capacity credit of time variant solar generating sources and reviewed new methods to appropriately and fairly evaluate the value of solar generation to electric utilities. The project also reviewed general integrated approaches for adequately compensating owners of solar generation for their benefits to utilities. However, given the limited funding support and time duration of this project combined with the significant differences between utilities regarding rate structures, solar resource availability and coincidence of solar generation with peak load periods, it is well beyond the scope of this project to develop specific rate, rebate, and interconnection approaches to capture utility benefits for all possible utilities. The project developed computer software based evaluation method models to compare solar generation production data measured in very short term time increments called Sample Intervals over a typical utility Dispatch Cycle during an Evaluation Period against utility system load data. Ten second resolution generation production data from the SGSSS and actual one minute resolution TEP system load data for 2006 and 2007, along with data from the Pennington Street Garage 60 kW DC capacity solar unit installed in downtown Tucson will be applied to the model for testing and verification of the evaluation method. Data was provided by other utilities, but critical time periods of data were missing making results derived from that data inaccurate. The algorithms are based on previous analysis and review of specific 2005 and 2006 SGSSS production data. The model was built, tested and verified by in house TEP personnel. For this phase of the project, TEP communicated with, shared solar production data with and collaborated on the development of solar generation valuation tools with other utilities, including Arizona Public Service, Salt River Project, Xcel and Nevada Power Company as well as the Arizona electric cooperatives. In the second phase of the project, three years of 10 second power output data of the SGSSS was used to evaluate the effectiveness of frequency domain analysis, normal statistical distribution analysis and finally maximum/minimum differential output analysis to test the applicability of these mathematic methods in accurately modeling the output variations produced by clouds passing over the SGSSS array.

Hansen, Thomas N.; Dion, Phillip J.

2009-06-30T23:59:59.000Z

251

Particle-particle, particle-scaling function algorithm for electrostatic problems in free boundary conditions  

Science Journals Connector (OSTI)

An algorithm for fast calculation of the Coulombic forces and energies of point particles with free boundary conditions is proposed. Its calculation time scales as N log N for N particles. This novel method has lower crossover point with the full O ( N 2 ) direct summation than the fast multipole method. The forces obtained by our algorithm are analytical derivatives of the energy which guarantees energy conservation during a molecular dynamics simulation. Our algorithm is very simple. A version of the code parallelized with the Message Passing Interface can be downloaded under the GNU General Public License from the website of our group.

Alexey Neelov; S. Alireza Ghasemi; Stefan Goedecker

2007-01-01T23:59:59.000Z

252

Trivializing maps, the Wilson flow and the HMC algorithm  

E-Print Network (OSTI)

In lattice gauge theory, there exist field transformations that map the theory to the trivial one, where the basic field variables are completely decoupled from one another. Such maps can be constructed systematically by integrating certain flow equations in field space. The construction is worked out in some detail and it is proposed to combine the Wilson flow (which generates approximately trivializing maps for the Wilson gauge action) with the HMC simulation algorithm in order to improve the efficiency of lattice QCD simulations.

Martin Lscher

2009-12-03T23:59:59.000Z

253

An algorithm for scheduling a large pumped storage plant  

SciTech Connect

The Michigan Electric Coordination Center (MEPCC), operated by Consumers Power and Detroit Edison Companies, has the responsibility for scheduling the Ludington pumped storage plant. Ludington has an extremely large economic effect on the Consumers Power and Detroit Edison Companies' system due to its size (over 1800 MW net demonstrated generating capability). This paper presents a dynamic programming algorithm for scheduling large pumped storage plants and shows how this method can be coordinated with the commitment of the thermal units of the system.

Cohen, A.I.; Wan, S.H.

1985-08-01T23:59:59.000Z

254

Patch-Levy-based initialization algorithm for Bees Algorithm  

Science Journals Connector (OSTI)

Abstract The Bees Algorithm (BA) is a population-based metaheuristic algorithm inspired by the foraging behavior of honeybees. This algorithm has been successfully used as an optimization tool in combinatorial and functional optimization fields. In addition, its behavior very closely mimics the actual behavior that occurs in nature, and it is very simple and easy to implement. However, its convergence speed to the optimal solution still needs further improvement and it also needs a mechanism to obviate getting trapped in local optima. In this paper, a novel initialization algorithm based on the patch concept and Levy flight distribution is proposed to initialize the population of bees in BA. Consequently, we incorporate this initialization procedure into a proposed enhanced BA variant. The proposed variant is more natural than conventional variants of BA. It mimics the patch environment in nature and Levy flight, which is believed to characterize the foraging patterns of bees in nature. The results of experiments conducted on several widely used high-dimensional benchmarks indicate that our proposed enhanced BA variant significantly outperforms other BA variants and state-of-the-art variants of the Artificial Bee Colony (ABC) algorithm in terms of solution quality, convergence speed, and success rate. In addition, the results of experimental analyses conducted indicate that our proposed enhanced BA is very stable, has the ability to deal with differences in search ranges, and rapidly converges without getting stuck in local optima.

Wasim A. Hussein; Shahnorbanun Sahran; Siti Norul Huda Sheikh Abdullah

2014-01-01T23:59:59.000Z

255

Direct - drive permanent magnet synchronous generator design for hydrokinetic energy extraction .  

E-Print Network (OSTI)

??"Hydrokinetic turbines deliver lower shaft speeds when compared to both steam and wind turbines. Hence, a water wheel generator must operate at speeds as low (more)

Kashyap, Amshumaan Raghunatha

2013-01-01T23:59:59.000Z

256

ENERGY GENERATION RESEARCH PIER Energy Generation Research  

E-Print Network (OSTI)

ENERGY GENERATION RESEARCH PIER Energy Generation Research www.energy.ca.gov/research/ renewable/ November 2010 Sonoma County RESCO A Local Level Approach to Renewable Energy Portfolios. The Issue To address energy usage that contributes to climate change, California has enacted legislation to guide

257

Lower oil prices also cutting winter heating oil and propane...  

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

Lower oil prices also cutting winter heating oil and propane bills Lower oil prices are not only driving down gasoline costs, but U.S. consumers will also see a bigger savings in...

258

Capturing Waste Gas: Saves Energy, Lower Costs - Case Study,...  

Office of Environmental Management (EM)

Capturing Waste Gas: Saves Energy, Lower Costs - Case Study, 2013 Capturing Waste Gas: Saves Energy, Lower Costs - Case Study, 2013 ArcelorMittal USA, Inc.'s Indiana Harbor steel...

259

Gamma ray generator  

DOE Patents (OSTI)

An embodiment of a gamma ray generator includes a neutron generator and a moderator. The moderator is coupled to the neutron generator. The moderator includes a neutron capture material. In operation, the neutron generator produces neutrons and the neutron capture material captures at least some of the neutrons to produces gamma rays. An application of the gamma ray generator is as a source of gamma rays for calibration of gamma ray detectors.

Firestone, Richard B; Reijonen, Jani

2014-05-27T23:59:59.000Z

260

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 2005 Annual Report.  

SciTech Connect

This project monitored the daily passage of Chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon O. nerka smolts during the 2005 spring out-migration at migrant traps on the Snake River and Salmon River. In 2005 fish management agencies released significant numbers of hatchery Chinook salmon and steelhead trout above Lower Granite Dam that were not marked with a fin clip or coded-wire tag. Generally, the age-1 and older fish were distinguishable from wild fish by the occurrence of fin erosion. Age-0 Chinook salmon are more difficult to distinguish between wild and non-adclipped hatchery fish and therefore classified as unknown rearing. The total annual hatchery spring/summer Chinook salmon catch at the Snake River trap was 0.34 times greater in 2005 than in 2004. The wild spring/summer Chinook catch was 0.34 times less than the previous year. Hatchery steelhead trout catch was 0.67 times less than in 2004. Wild steelhead trout catch was 0.72 times less than the previous year. The Snake River trap collected 1,152 age-0 Chinook salmon of unknown rearing. During 2005, the Snake River trap captured 219 hatchery and 44 wild/natural sockeye salmon and 110 coho salmon O. kisutch of unknown rearing. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with flow. Trap operations began on March 6 and were terminated on June 3. The trap was out of operation for a total of one day due to heavy debris. FPC requested that the trap be restarted on June 15 through June 22 to collect and PIT tag age-0 Chinook salmon. Hatchery Chinook salmon catch at the Salmon River trap was 1.06 times greater and wild Chinook salmon catch was 1.26 times greater than in 2004. The hatchery steelhead trout collection in 2005 was 1.41 times greater and wild steelhead trout collection was 1.27 times greater than the previous year. Trap operations began on March 6 and were terminated on May 17 due to high flows. There were two days when the trap was taken out of service because of mechanical failure. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for passive integrated transponder (PIT) tagged Chinook salmon and steelhead trout marked at the Snake River trap were affected by discharge. Statistical analysis of 2005 data detected a relation between migration rate and discharge for hatchery Chinook but was unable to detect a relation for wild Chinook. The inability to detect a migration rate discharge relation for wild Chinook salmon was caused by a lack of data. For hatchery Chinook salmon there was a 1.8-fold increase in migration rate between 50 and 100 kcfs. For steelhead trout tagged at the Snake River trap, statistical analysis detected a significant relation between migration rate and lower Granite Reservoir inflow discharge. For hatchery and wild steelhead trout, there was a 2.2-fold and a 2.2-fold increase in migration rate, respectively, between 50 and 100 kcfs. Travel time and migration rate to Lower Granite Dam for fish marked at the Salmon River trap were calculated. Statistical analysis of the 2005 data detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge for hatchery Chinook salmon, wild Chinook salmon, hatchery steelhead trout, and wild steelhead trout. Migration rate increased 4.2-fold for hatchery Chinook salmon, 2.9-fold for wild Chinook salmon and 2.5-fold for hatchery steelhead, and 1.7-fold for wild steelhead as discharge increased between 50 kcfs and 100 kcfs. Fish tagged with PIT tags at the Snake River and Salmon River traps were interrogated at four dams with PIT tag detection systems (Lower Granite, Little Goose, Lower Monumental and McNary dams). Because of the addition of the fourth interrogation site (Lower Monumental) in 1993 and the installation of the Removable Spillway Weir at Lower Granite Dam in 2001, caution must be used in comparing cumulative interrogation data. Cumulative interrogations at the fo

Buettner, Edwin W.; Putnam, Scott A. [Idaho Department of Fish and Game

2009-02-18T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Efficient spectral and pseudospectral algorithms for 3D simulations of whistler-mode waves in a plasma  

Science Journals Connector (OSTI)

Efficient spectral and pseudospectral algorithms for simulation of linear and nonlinear 3D whistler waves in a cold electron plasma are developed. These algorithms are applied to the simulation of whistler waves generated by loop antennas and spheromak-like ... Keywords: Graphics processors, Pseudospectral methods, Waves in plasma, Whistler waves

Nail A. Gumerov; Alexey V. Karavaev; A. Surjalal Sharma; Xi Shao; Konstantinos D. Papadopoulos

2011-04-01T23:59:59.000Z

262

Advanced Algorithms Course. Lecture Notes. Part 2  

E-Print Network (OSTI)

Advanced Algorithms Course. Lecture Notes. Part 2 Set Cover This is a very fundamental problem approximation algorithm. A natural greedy rule is to successively add sets Si to the solution, that cover Si be the set that covers this sj in the greedy algorithm. Since the algorithm always picks an Si

Damaschke, Peter

263

ZART: A Multifunctional Itemset Mining Algorithm  

E-Print Network (OSTI)

ZART: A Multifunctional Itemset Mining Algorithm Laszlo Szathmary1 , Amedeo Napoli1 , and Sergei O independent, multi-purposed data mining platform, incorporating a rich collection of data mining algorithms. One of these algorithms is a multifunctional itemset mining algorithm called Zart, which is based

Boyer, Edmond

264

The Observer Algorithm for Visibility Approximation  

E-Print Network (OSTI)

other algorithms do. We test this algorithm in several settings: rural, mountainous and urban areasThe Observer Algorithm for Visibility Approximation Per-Magnus OLSSON a and Patrick DOHERTY present a novel algorithm for visibility approximation that is sub- stantially faster than ray casting

Doherty, Patrick

265

Introduction to Algorithms April 8, 2014  

E-Print Network (OSTI)

1 CS38 Introduction to Algorithms Lecture 3 April 8, 2014 April 8, 2014 CS38 Lecture 3 2 Outline · greedy algorithms... ­ Dijkstra's algorithm for single-source shortest paths · guest lecturer (this lecture and next) ­ coin changing ­ interval scheduling ­ MCST (Prim and Kruskal) Greedy algorithms

Umans, Chris

266

Graph Algorithms Special Sets in Graphs  

E-Print Network (OSTI)

{u e}. Graph Algorithms 8 #12;Example: A Vertex Cover Set Graph Algorithms 9 #12;Example: A Minimum Size Vertex Cover Set Graph Algorithms 10 #12;A Clique A set of vertices for which all possible edges * * * * * Graph Algorithms 20 #12;Independent Sets and Vertex Cover Sets Observation: I is an independent set

Bar-Noy, Amotz

267

Generation to Generation: The Heart of Family Medicine  

E-Print Network (OSTI)

Ageism in the Workplace. Generations Spring, 5. Westman,of caring for multiple generations simultaneously. StronglyGeneration to Generation: The Heart of Family Medicine

Winter, Robin O

2012-01-01T23:59:59.000Z

268

Spiral Optimization Algorithm for solving Combined Economic and Emission Dispatch  

Science Journals Connector (OSTI)

Abstract The Spiral Optimization Algorithm (SOA) is an optimization technique developed recently (2011) by K. Tamura and K. Yasuda at Tokyo Metropolitan University-Japan. SOA is a metaheuristic based on an analogy of spiral phenomena in nature and it is simple in concept, few in parameters and easy in implementation. In this paper, SOA is proposed for solving the Combined Economic and Emission Dispatch (CEED) problem. It is aimed, in the CEED problem, that scheduling of generators should operate with both minimum fuel costs and emission levels, simultaneously, while satisfying the load demand and operational constraints. The CEED problem is formulated as a multi-objective problem by considering the fuel cost and emission objectives of generating units. The bi-objective optimization problem is converted into a single objective function using a price penalty factor. The proposed algorithm has been implemented on three test systems with 3, 6, and 40 generating units, with different constraints and various cost curve nature. In order to see the effectiveness of the proposed algorithm, its results are compared to those reported in the recent literature. Those results are quite encouraging showing the good applicability of SOA for CEED problem.

Lahouaria Benasla; Abderrahim Belmadani; Mostefa Rahli

2014-01-01T23:59:59.000Z

269

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan Volume II ­ Subbasin Plan Chapter J ­ Wind Lower Columbia Fish Recovery Board December 15, 2004 #12;Preface This is one in a series Subbasin II.H. Lower Columbia Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White

270

CostPerformance Analysis and Optimization of Fuel-Burning Thermoelectric Power Generators  

Science Journals Connector (OSTI)

Energy cost analysis and optimization of thermoelectric (TE) power generators burning fossil fuel show a lower initial cost ... The produced heat generates electric power. Unlike waste heat recovery systems, the ...

Kazuaki Yazawa; Ali Shakouri

2013-07-01T23:59:59.000Z

271

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 2004 Annual Report.  

SciTech Connect

This project monitored the daily passage of Chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon O. nerka smolts during the 2004 spring out-migration at migrant traps on the Snake River and Salmon River. In 2004 fish management agencies released significant numbers of hatchery Chinook salmon and steelhead trout above Lower Granite Dam that were not marked with a fin clip or coded-wire tag. Generally, these fish were distinguishable from wild fish by the occurrence of fin erosion. Total annual hatchery Chinook salmon catch at the Snake River trap was 1.1 times greater in 2004 than in 2003. The wild Chinook catch was 1.1 times greater than the previous year. Hatchery steelhead trout catch was 1.2 times greater than in 2003. Wild steelhead trout catch was 1.6 times greater than the previous year. The Snake River trap collected 978 age-0 Chinook salmon of unknown rearing. During 2004, the Snake River trap captured 23 hatchery and 18 wild/natural sockeye salmon and 60 coho salmon O. kisutch of unknown rearing. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with flow. Trap operations began on March 7 and were terminated on June 4. The trap was out of operation for a total of zero days due to mechanical failure or debris. Hatchery Chinook salmon catch at the Salmon River trap was 10.8% less and wild Chinook salmon catch was 19.0% less than in 2003. The hatchery steelhead trout collection in 2004 was 20.0% less and wild steelhead trout collection was 22.3% less than the previous year. Trap operations began on March 7 and were terminated on May 28 due to high flows. There were two days when the trap was taken out of service because wild Chinook catch was very low, hatchery Chinook catch was very high, and the weekly quota of PIT tagged hatchery Chinook had been met. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for PIT-tagged Chinook salmon and steelhead trout marked at the Snake River trap were affected by discharge. Statistical analysis of 2004 data detected a relation between migration rate and discharge for wild Chinook salmon but was unable to detect a relation for hatchery Chinook. The inability to detect a migration rate discharge relation for hatchery Chinook salmon was caused by age-0 fall Chinook being mixed in with the age 1 Chinook. Age-0 fall Chinook migrate much slower than age-1 Chinook, which would confuse the ability to detect the migration rate discharge relation. When several groups, which consisted of significant numbers of age-0 Chinook salmon, were removed from the analysis a relation was detected. For hatchery and wild Chinook salmon there was a 2.8-fold and a 2.4-fold increase in migration rate, respectively, between 50 and 100 kcfs. For steelhead trout tagged at the Snake River trap, statistical analysis detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge. For hatchery and wild steelhead trout, there was a 2.3-fold and a 2.0-fold increase in migration rate, respectively, between 50 and 100 kcfs. Travel time and migration rate to Lower Granite Dam for fish marked at the Salmon River trap were calculated. Statistical analysis of the 2004 data detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge for hatchery Chinook salmon, wild Chinook salmon and hatchery steelhead trout. Not enough data were available to perform the analysis for wild steelhead trout. Migration rate increased 7.0-fold for hatchery Chinook salmon, 4.7-fold for wild Chinook salmon and 3.8-fold for hatchery steelhead as discharge increased between 50 kcfs and 100 kcfs. Fish tagged with passive integrated transponder (PIT) tags at the Snake River and Salmon River traps were interrogated at four dams with PIT tag detection systems (Lower Granite, Little Goose, Lower Monumental, and McNary dams). Because of the addition of the fourth interrogation site (Lower Monume

Buettner, Edwin W.; Putnam, Scott A. [Idaho Department of Fish and Game

2009-02-18T23:59:59.000Z

272

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 2002 Annual Report.  

SciTech Connect

This project monitored the daily passage of Chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon smolts O. nerka during the 2002 spring out-migration at migrant traps on the Snake River and Salmon River. In 2002 fish management agencies released significant numbers of hatchery Chinook salmon and steelhead trout above Lower Granite Dam that were not marked with a fin clip or coded-wire tag. Generally, these fish were distinguishable from wild fish by the occurrence of fin erosion. Total annual hatchery Chinook salmon catch at the Snake River trap was 11.4 times greater in 2002 than in 2001. The wild Chinook catch was 15.5 times greater than the previous year. Hatchery steelhead trout catch was 2.9 times greater than in 2001. Wild steelhead trout catch was 2.8 times greater than the previous year. The Snake River trap collected 3,996 age-0 Chinook salmon of unknown rearing. During 2002, the Snake River trap captured 69 hatchery and 235 wild/natural sockeye salmon and 114 hatchery coho salmon O. kisutch. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with flow. The significant increase in catch in 2002 was due to a 3.1 fold increase in hatchery Chinook production and a more normal spring runoff. Trap operations began on March 10 and were terminated on June 7. The trap was out of operation for a total of four days due to mechanical failure or debris. Hatchery Chinook salmon catch at the Salmon River trap was 4.2 times greater and wild Chinook salmon catch was 2.4 times greater than in 2001. The hatchery steelhead trout collection in 2002 was 81% of the 2001 numbers. Wild steelhead trout collection in 2002 was 81% of the previous year's catch. Trap operations began on March 10 and were terminated on May 29 due to high flows. The trap was out of operation for four days due to high flow or debris. The increase in hatchery Chinook catch in 2002 was due to a 3.1 fold increase in hatchery production and differences in flow between years. Changes in hatchery and wild steelhead catch are probably due to differences in flow between years. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for PIT-tagged Chinook salmon and steelhead trout marked at the Snake River trap were affected by discharge. Statistical analysis of 2002 data detected a relation between migration rate and discharge for hatchery and wild Chinook salmon. For hatchery and wild Chinook salmon there was a 4.7-fold and a 3.7-fold increase in migration rate, respectively, between 50 and 100 kcfs. For steelhead trout tagged at the Snake River trap, statistical analysis detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge. For hatchery and wild steelhead trout, there was a 1.8-fold and a 1.7-fold increase in migration rate, respectively, between 50 and 100 kcfs. Travel time and migration rate to Lower Granite Dam for fish marked at the Salmon River trap were calculated. Statistical analysis of the 2002 data detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge for wild Chinook salmon and hatchery steelhead trout. The analysis was unable to detect a relation between migration rate and discharge for hatchery Chinook salmon. The lack of a detectable relation was probably a result of the migration rate data being spread over a very narrow range of discharge. Not enough data were available to perform the analysis for wild steelhead trout. Migration rate increased 4.3-fold for wild Chinook salmon and 2.2-fold for hatchery steelhead between 50 kcfs and 100 kcfs. Fish tagged with passive integrated transponder (PIT) tags at the Snake River trap were interrogated at four dams with PIT tag detection systems (Lower Granite, Little Goose, Lower Monumental, and McNary dams). Because of the addition of the fourth interrogation site (Lower Monumental) in 1993 and the installation of the Removable Spillway Weir at

Buettner, Edwin W.; Putnam, Scott A. [Idaho Department of Fish and Game

2009-02-18T23:59:59.000Z

273

Automatic and interactive e-Learning auxiliary material generation utilizing particle swarm optimization  

Science Journals Connector (OSTI)

The purpose of this research was to utilize a PSO-based algorithm, serial blog article composition particle swarm optimization (SBACPSO) algorithm, to automatically and intelligently generate auxiliary materials. Contrary to previous fixed content auxiliary ... Keywords: Auxiliary material, RSS, Serial blog articles composition particle swarm optimization, e-Learning

Tien-Chi Huang; Yueh-Min Huang; Shu-Chen Cheng

2008-11-01T23:59:59.000Z

274

Evidence Absorption | Experiments on Di erent Classes of Randomly Generated Belief Networks  

E-Print Network (OSTI)

Evidence Absorption | Experiments on Di#11;erent Classes of Randomly Generated Belief Networks to incorporate the method of evidence absorption into Pearl's algorithms for probabilistic inference of evidence absorption into Pearl's algorithms for exact probabilistic inference to save on the computational

Utrecht, Universiteit

275

A Cavity QED Implementation of Deutsch-Jozsa Algorithm  

E-Print Network (OSTI)

The Deutsch-Jozsa algorithm is a generalization of the Deutsch algorithm which was the first algorithm written. We present schemes to implement the Deutsch algorithm and the Deutsch-Jozsa algorithm via cavity QED.

E. S. Guerra

2004-10-23T23:59:59.000Z

276

A preliminary evaluation of a speed threshold incident detection algorithm  

E-Print Network (OSTI)

detection algorithm. San Antonio's new traffic management center, TransGuide, uses a new speed based algorithm, The TXDOT (Texas Department of Transportation) Speed algorithm. This research compares the TXDOT Speed algorithm with California algorithm #8...

Kolb, Stephanie Lang

1996-01-01T23:59:59.000Z

277

Lower Valley Energy - Residential Energy Efficiency Rebate Program |  

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

Lower Valley Energy - Residential Energy Efficiency Rebate Program Lower Valley Energy - Residential Energy Efficiency Rebate Program Lower Valley Energy - Residential Energy Efficiency Rebate Program < Back Eligibility Residential Savings Category Home Weatherization Commercial Weatherization Appliances & Electronics Sealing Your Home Ventilation Heating & Cooling Commercial Heating & Cooling Water Heating Windows, Doors, & Skylights Program Info State Wyoming Program Type Utility Rebate Program Rebate Amount Energy Audit: Discounted Cost Weatherization Measures: Varies Marathon Water Heater: $25 Water Heater: $15 - $25 Clothes Washer: $25 - $50 Refrigerator: $15 Refrigerator Recycling: $75 Energy Star Manufactured Home: $1,000 Geothermal Heat Pumps: Up to $2,100 Provider Lower Valley Energy Lower Valley Energy offers numerous rebates for residential customers who

278

Alternative Fuels Data Center: Alternative Fuel Vehicles Lower Emissions in  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Alternative Fuel Alternative Fuel Vehicles Lower Emissions in Columbus, Ohio to someone by E-mail Share Alternative Fuels Data Center: Alternative Fuel Vehicles Lower Emissions in Columbus, Ohio on Facebook Tweet about Alternative Fuels Data Center: Alternative Fuel Vehicles Lower Emissions in Columbus, Ohio on Twitter Bookmark Alternative Fuels Data Center: Alternative Fuel Vehicles Lower Emissions in Columbus, Ohio on Google Bookmark Alternative Fuels Data Center: Alternative Fuel Vehicles Lower Emissions in Columbus, Ohio on Delicious Rank Alternative Fuels Data Center: Alternative Fuel Vehicles Lower Emissions in Columbus, Ohio on Digg Find More places to share Alternative Fuels Data Center: Alternative Fuel Vehicles Lower Emissions in Columbus, Ohio on AddThis.com...

279

A Fast, Robust Algorithm for Power Line Interference Cancellation in Neural Recording  

E-Print Network (OSTI)

Power line interference may severely corrupt neural recordings at 50/60 Hz and harmonic frequencies. In this paper, we present a robust and computationally efficient algorithm for removing power line interference from neural recordings. The algorithm includes four steps. First, an adaptive notch filter is used to estimate the fundamental frequency of the interference. Subsequently, based on the estimated frequency, harmonics are generated by using discrete-time oscillators, and then the amplitude and phase of each harmonic are estimated through using a modified recursive least squares algorithm. Finally, the estimated interference is subtracted from the recorded data. The algorithm does not require any reference signal, and can track the frequency, phase, and amplitude of each harmonic. When benchmarked with other popular approaches, our algorithm performs better in terms of noise immunity, convergence speed, and output signal-to-noise ratio (SNR). While minimally affecting the signal bands of interest, the a...

Keshtkaran, Mohammad Reza

2014-01-01T23:59:59.000Z

280

Memorial University of Newfoundland Department of Mathematics and Statistics Bellman's Algorithm for Acyclic Directed Graphs  

E-Print Network (OSTI)

time O(n 2 ). And each iteration of step (3) takes times O(n); with up to n iterations, step (3. A canonical ordering of the vertices is generated by the following algorithm (the output of which is either of a directed graph takes time O(n 2 ). How- ever, the algorithm presented has time O(n 3 ). In step (2), which

deYoung, Brad

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Audio Binary Halftone Watermarking Algorithm  

Science Journals Connector (OSTI)

Conventional audio watermarking method has the following deficiencies: the embedded watermarking signal bits are too less; the image watermarking pre-process is too simple which reduce the security; the embedded audio watermarking is meaningless binary sequence. To address these problems, we propose a robust audio watermarking algorithm based on audio binary halftone pre-process. The meaningful audio watermarking can be preprocessed to high-fidelity binary audio. The variable dimension operation is used to scramble the host audio. Experiments show the proposed algorithm has big embedding quantity, high security, strong practicability and robustness in enduring common attacks.

Huan Li; Zheng Qin; Xuanping Zhang; Xu Wang

2011-01-01T23:59:59.000Z

282

Computational problems algorithmsComputational problems, algorithms, runtime, hardness  

E-Print Network (OSTI)

we model set cover as an integer program? · See examples Algorithms and runtime · We would see (a brief introduction to theoretical computer science) slides by Vincent Conitzer Set Cover (a a T of size at most k will suffice Set Cover (a computational problem) · One instance of the set cover problem

Allan, Vicki H.

283

Contaminant-Generation Mechanisms  

Science Journals Connector (OSTI)

In the last chapter, the areas where contaminants are generated were discussed. Knowing the location of contaminant generation is helpful in controlling that contamination, but understanding the mechanisms is ...

Alvin Lieberman

1992-01-01T23:59:59.000Z

284

Using Backup Generators  

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

Power outages are commonplace during disasters, and they may last for several days. You can reduce losses and speed the recovery process by installing an emergency generator. Portable generators...

285

X-Ray Generators  

Science Journals Connector (OSTI)

There are many types of X-ray generators sold commercially. The following are some of ... that should be considered when selecting a particular generator for a particular purpose. All the companies listed below s...

Reuben Rudman

1972-01-01T23:59:59.000Z

286

Geothermal Power Generation  

SciTech Connect

The report provides an overview of the renewed market interest in using geothermal for power generation including a concise look at what's driving interest in geothermal power generation, the current status of geothermal power generation, and plans for the future. Topics covered in the report include: an overview of geothermal power generation including its history, the current market environment, and its future prospects; an analysis of the key business factors that are driving renewed interest in geothermal power generation; an analysis of the challenges that are hindering the implementation of geothermal power generation projects; a description of geothermal power generation technologies; a review of the economic drivers of geothermal power generation project success; profiles of the major geothermal power producing countries; and, profiles of the major geothermal power project developers.

NONE

2007-11-15T23:59:59.000Z

287

Renewable energy generation sources  

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

directly supports the Department of Energy's SunShot goals by providing lower thermal-energy storage costs and greater collection efficiencies. "It really gives a complete...

288

Generation of energy-efficient architecture solutions applying GENE_ARCH: An evolution-based generative design system  

Science Journals Connector (OSTI)

As the field of design automation and generative design systems (GDS) evolve, more emphasis is placed on issues of design evaluation. This paper focus on the presentation of different applications of GENE_ARCH, an evolution-based GDS aimed at helping ... Keywords: Bioclimatic architecture, Design automation, Embodied energy, Energy efficiency, Generative design systems, Genetic algorithms, Life-cycle analysis, Pareto multicriteria optimization, Sustainable construction

Luisa Caldas

2008-01-01T23:59:59.000Z

289

A Generative Dependency Grammar  

Science Journals Connector (OSTI)

We propose a new kind of grammar: the Generative Dependency Grammar (GDG) based on dependency trees (DT) and a generative process. By generating a surface text using these GDG, the DT of the text is obtained too. GDG formalism is starting to be used ...

Stefan Diaconescu

2002-08-01T23:59:59.000Z

290

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 2003 Annual Report.  

SciTech Connect

This project monitored the daily passage of Chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon O. nerka smolts during the 2003 spring out-migration at migrant traps on the Snake River and Salmon River. In 2003 fish management agencies released significant numbers of hatchery Chinook salmon and steelhead trout above Lower Granite Dam that were not marked with a fin clip or coded-wire tag. Generally, these fish were distinguishable from wild fish by the occurrence of fin erosion. Total annual hatchery Chinook salmon catch at the Snake River trap was 2.1 times less in 2003 than in 2002. The wild Chinook catch was 1.1 times less than the previous year. Hatchery steelhead trout catch was 1.7 times less than in 2002. Wild steelhead trout catch was 2.1 times less than the previous year. The Snake River trap collected 579 age-0 Chinook salmon of unknown rearing. During 2003, the Snake River trap captured five hatchery and 13 wild/natural sockeye salmon and 36 coho salmon O. kisutch of unknown rearing. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with flow. The significant differences in catch between 2003 and the previous year were due mainly to low flows during much of the trapping season and then very high flows at the end of the season, which terminated the trapping season 12 days earlier than in 2002. Trap operations began on March 9 and were terminated on May 27. The trap was out of operation for a total of zero days due to mechanical failure or debris. Hatchery Chinook salmon catch at the Salmon River trap was 16.8% less and wild Chinook salmon catch was 1.7 times greater than in 2002. The hatchery steelhead trout collection in 2003 was 5.6% less than in 2002. Wild steelhead trout collection was 19.2% less than the previous year. Trap operations began on March 9 and were terminated on May 24 due to high flows. There were zero days when the trap was out of operation due to high flow or debris. The decrease in hatchery Chinook catch in 2003 was partially due to differences in flow between years because there was a 5.9% increase in hatchery production in the Salmon River drainage in 2003. The decrease in hatchery steelhead catch may be partially due to a 13% decrease in hatchery production in the Salmon River drainage in 2003. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for PIT-tagged Chinook salmon and steelhead trout marked at the Snake River trap were affected by discharge. Statistical analysis of 2003 data detected a relation between migration rate and discharge for wild Chinook salmon but was unable to detect a relation for hatchery Chinook. The inability to detect a migration rate discharge relation for hatchery Chinook was probably caused by age 0 fall Chinook being mixed in with the age 1 Chinook. Age 0 fall Chinook migrate much slower than age 1 Chinook, which would confuse the ability to detect the migration rate discharge relation. For wild Chinook salmon there was a 1.4-fold increase in migration rate, respectively, between 50 and 100 kcfs. For steelhead trout tagged at the Snake River trap, statistical analysis detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge. For hatchery and wild steelhead trout, there was a 1.7-fold and a 1.9-fold increase in migration rate, respectively, between 50 and 100 kcfs. Travel time and migration rate to Lower Granite Dam for fish marked at the Salmon River trap were calculated. Statistical analysis of the 2003 data detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge for hatchery Chinook salmon, wild Chinook salmon and hatchery steelhead trout. Not enough data were available to perform the analysis for wild steelhead trout. Migration rate increased 14-fold for hatchery Chinook salmon, 8.3-fold for wild Chinook salmon and 2.4-fold for hatchery steelhead as discharge increased between 50 kcfs and

Buettner, Edwin W.; Putnam, Scott A. [Idaho Department of Fish and Game

2009-02-18T23:59:59.000Z

291

STEADY-STATE FLAMMABLE GAS RELEASE RATE CALCULATION AND LOWER FLAMMABILITY LEVEL EVALUATION FOR HANFORD TANK WASTE  

SciTech Connect

Assess the steady-state flammability level at normal and off-normal ventilation conditions. The methodology of flammability analysis for Hanford tank waste is developed. The hydrogen generation rate model was applied to calculate the gas generation rate for 177 tanks. Flammability concentrations and the time to reach 25% and 100% of the lower flammability limit, and the minimum ventilation rate to keep from 100 of the LFL are calculated for 177 tanks at various scenarios.

HU TA

2007-10-26T23:59:59.000Z

292

EIA - Annual Energy Outlook 2008 (Early Release)-Electricity Generation  

Gasoline and Diesel Fuel Update (EIA)

Electricity Generation Electricity Generation Annual Energy Outlook 2008 (Early Release) Electricity Generation U.S. electricity consumption—including both purchases from electric power producers and on-site generation—increases steadily in the AEO2008 reference case, at an average rate of 1.3 percent per year. In comparison, electricity consumption grew by annual rates of 4.2 percent, 2.6 percent, and 2.3 percent in the 1970s, 1980s, and 1990s, respectively. The growth rate in the AEO2008 projection is lower than in the AEO2007 reference case (1.5 percent per year), and it leads to lower projections of electricity generation. Figure 4. Electricity generation by fuel, 1980-2030 (billion kilowatthours). Need help, contact the National Energy Information Center at 202-586-8800.

293

Rough-Fuzzy MLP: Modular Evolution, Rule Generation, and Evaluation  

E-Print Network (OSTI)

they are integrated and evolved. Rough set dependency rules are generated directly from the real valued attribute Terms--Soft computing, knowledge-based fuzzy networks, rough sets, genetic algorithms, pattern efficient systems in soft computing paradigm. Recently, the theory of rough sets [2], [3] has emerged

Mitra, Sushmita

294

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1998 Annual Report.  

SciTech Connect

This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon smolts O. nerka, during the 1998 spring outmigration at migrant traps on the Snake and Salmon rivers. All hatchery chinook salmon released above Lower Granite Dam 19 1998 were marked with a fin-clip. Total annual hatchery chinook salmon catch at the Snake River trap was 226% of the 1997 number and 110% of the 1996 catch. The wild chinook catch was 120% of the 1997 catch but was only 93% of 1996. Hatchery steelhead trout catch was 501% of 1997 numbers but only 90% of the 1996 numbers. Wild steelhead trout catch was 569% of 1997 and 125% of the 1996 numbers. The Snake River trap collected 106 age-0 chinook salmon. During 1998, for the first time, the Snake River trap captured a significant number of hatchery sockeye salmon (1,552) and hatchery coho salmon O. kisutch (166). Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with high flows. Trap operations began on March 8 and were terminated for the season due to high flows on June 12. The trap was out of operation for 34 d during the season due to high flow and debris. Hatchery chinook salmon catch at the Salmon River trap was 476% and wild chinook salmon catch was 137% of 1997 numbers and 175% and 82% of 1996 catch, respectively. The hatchery steelhead trout collection in 1998 was 96% of the 1997 catch and 13% of the 1996 numbers. Wild steelhead trout collection in 1998 was 170% of the 1997 catch and 37% of the 1996 numbers. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for PIT-tagged chinook salmon and steelhead trout, marked at the head of the reservoir were affected by discharge. For fish tagged at the Snake River trap, statistical analysis of 1998 detected a significant relation between migration rate and discharge. For hatchery and wild chinook salmon there was a 2.0- and 2.6-fold increase in migration rate, respectively, between 50 and 100 thousands of cubic feet per second (kcfs). For hatchery steelhead trout there was a 2.6-fold increase in migration rate between 50 kcfs and 100 kcfs. For fish marked at the Salmon River trap, statistical analysis of the 1998 data detected a significant relation between migration rate and discharge for hatchery and wild chinook salmon hatchery and found a 3.3- and 2.6-fold increase in migration rate, respectively, between 50 and 100 kcfs. A significant relation between migration rate and discharge was not detected for hatchery steelhead trout. Insufficient numbers of wild steelhead trout were PIT-tagged at the Salmon River trap to estimate travel time and migration rate to Lower Granite Dam.

Buettner, Edwin W.; Brimmer, Arnold F.

2000-04-01T23:59:59.000Z

295

GEET DUGGAL Algorithms for Determining  

E-Print Network (OSTI)

Relationship to Gene Regulation Final Public Oral Examination Doctor of Philosophy Recent genome sequencing. Analyses from them have shown that the 3D structure of DNA may be closely linked to genome functions structure of DNA and genome function on the scale of the whole genome. Specifically, we designed algorithms

296

CIPRES: Algorithmic Challenges Bernard Moret  

E-Print Network (OSTI)

CIPRES: Algorithmic Challenges Bernard Moret University of New Mexico Phylogenetic Reconstruction difference in the two sets of induced bipartitions. � RF distance treats all bipartitions equally in most settings. � Maximum likelihood (ML): maximize probability that the data could have been produced

Moret, Bernard

297

5 Hyperspectral Data Processing Algorithms  

E-Print Network (OSTI)

121 5 Hyperspectral Data Processing Algorithms Antonio Plaza, Javier Plaza, Gabriel Martín), able to cover the wavelength region from 400 to 2500nm using more than 200 spec- tral channels. The special characteristics of hyperspectral data sets pose different processing problems [3], which must

Plaza, Antonio J.

298

Fixed Parameter Algorithms Dniel Marx  

E-Print Network (OSTI)

complexity Problem: VERTEX COVER INDEPENDENT SET Input: Graph G, integer k Graph G, integer k Question-complete NP-complete Fixed Parameter Algorithms ­ p.3/40 #12;Parameterized complexity Problem: VERTEX COVER INDEPENDENT SET Input: Graph G, integer k Graph G, integer k Question: Is it possible to cover the edges

Narasayya, Vivek

299

Parrondo Games and Quantum Algorithms  

E-Print Network (OSTI)

We pursue the possible connections between classical games and quantum computation. The Parrondo game is one in which a random combination of two losing games produces a winning game. We introduce novel realizations of this Parrondo effect in which the player can `win' via random reflections and rotations of the state-vector, and connect these to known quantum algorithms.

Chiu Fan Lee; Neil Johnson

2002-03-10T23:59:59.000Z

300

Why is Boris algorithm so good?  

SciTech Connect

Due to its excellent long term accuracy, the Boris algorithm is the de facto standard for advancing a charged particle. Despite its popularity, up to now there has been no convincing explanation why the Boris algorithm has this advantageous feature. In this paper, we provide an answer to this question. We show that the Boris algorithm conserves phase space volume, even though it is not symplectic. The global bound on energy error typically associated with symplectic algorithms still holds for the Boris algorithm, making it an effective algorithm for the multi-scale dynamics of plasmas.

Qin, Hong [Department of Modern Physics and Collaborative Innovation Center for Advanced Fusion Energy and Plasma Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China) [Department of Modern Physics and Collaborative Innovation Center for Advanced Fusion Energy and Plasma Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China); Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States); Zhang, Shuangxi; Xiao, Jianyuan; Liu, Jian [Department of Modern Physics and Collaborative Innovation Center for Advanced Fusion Energy and Plasma Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China)] [Department of Modern Physics and Collaborative Innovation Center for Advanced Fusion Energy and Plasma Sciences, University of Science and Technology of China, Hefei, Anhui 230026 (China); Sun, Yajuan [LSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, P.O. Box 2719, Beijing 100190 (China)] [LSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, P.O. Box 2719, Beijing 100190 (China); Tang, William M. [Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)] [Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)

2013-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Why is Boris Algorithm So Good?  

SciTech Connect

Due to its excellent long term accuracy, the Boris algorithm is the de facto standard for advancing a charged particle. Despite its popularity, up to now there has been no convincing explanation why the Boris algorithm has this advantageous feature. In this letter, we provide an answer to this question. We show that the Boris algorithm conserves phase space volume, even though it is not symplectic. The global bound on energy error typically associated with symplectic algorithms still holds for the Boris algorithm, making it an effective algorithm for the multi-scale dynamics of plasmas.

et al, Hong Qin

2013-03-03T23:59:59.000Z

302

SRS Recovery Act Completes Major Lower Three Runs Project Cleanup |  

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

SRS Recovery Act Completes Major Lower Three Runs Project Cleanup SRS Recovery Act Completes Major Lower Three Runs Project Cleanup SRS Recovery Act Completes Major Lower Three Runs Project Cleanup American Recovery and Reinvestment Act can now claim that 85 percent of the Savannah River Site (SRS) has been cleaned up with the recent completion of the Lower Three Runs (stream) Project. Twenty miles long, Lower Three Runs leaves the main body of the 310-square mile site and runs through parts of Barnwell and Allendale Counties until it flows into the Savannah River. Government property on both sides of the stream acts as a buffer as it runs through privately-owned property. Completing this project reduces the site's footprint by another 10 percent. SRS Recovery Act Completes Major Lower Three Runs Project Cleanup More Documents & Publications

303

SRS Recovery Act Completes Major Lower Three Runs Project Cleanup |  

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

SRS Recovery Act Completes Major Lower Three Runs Project Cleanup SRS Recovery Act Completes Major Lower Three Runs Project Cleanup SRS Recovery Act Completes Major Lower Three Runs Project Cleanup American Recovery and Reinvestment Act can now claim that 85 percent of the Savannah River Site (SRS) has been cleaned up with the recent completion of the Lower Three Runs (stream) Project. Twenty miles long, Lower Three Runs leaves the main body of the 310-square mile site and runs through parts of Barnwell and Allendale Counties until it flows into the Savannah River. Government property on both sides of the stream acts as a buffer as it runs through privately-owned property. Completing this project reduces the site's footprint by another 10 percent. SRS Recovery Act Completes Major Lower Three Runs Project Cleanup More Documents & Publications

304

Sliding mode control of a dual-stator induction generator for wind energy conversion systems  

Science Journals Connector (OSTI)

This paper presents a sliding mode control (SMC) associated to the field oriented control (FOC) of a dual-stator induction generator (DSIG) based wind energy conversion systems (WECSs). The DSIG has two sets of stator three-phase windings spatially shifted by 30 electrical degrees. The study of operation of the wind turbine leads us to two essential cases: optimization of the power for wind speeds lower than the nominal speed of the turbine and limitation of the power for higher speeds. Conventional electrical grid connected WECS present interesting control demands, due to the intrinsic nonlinear characteristic of wind mills and electric generators. The SMC is a robust nonlinear algorithm which uses discontinuous control to force the system states trajectories to join some specified sliding surface, it has been widely used for its robustness to model parameter uncertainties and external disturbances, is studied. In order to verify the validity of the proposed method, a dynamic model of the proposed system has been simulated, to demonstrate its performance.

H. Amimeur; D. Aouzellag; R. Abdessemed; K. Ghedamsi

2012-01-01T23:59:59.000Z

305

Time dependent evolution of RF-generated non-thermal particle distributions in fusion plasmas  

Science Journals Connector (OSTI)

We describe fully self-consistent time-dependent simulations of radio frequency (RF) generated ion distributions in the ion cyclotron range of frequencies and RF-generated electron distributions in the lower hybrid range of frequencies using combined FokkerPlanck and full wave electromagnetic field solvers. In each regime, the non-thermal particle distributions have been used in synthetic diagnostic codes to compare with diagnostic measurements from experiment, thus providing validation of the simulation capability. The computational intensive simulations require multiple full wave code runs that iterate with a FokkerPlanck code. We will discuss advanced algorithms that have been implemented to accelerate both the massively parallel full wave simulations as well as the iteration with the distribution code. A vector extrapolation method (Sidi A 2008 Comput. Math. Appl. 56) that permits Jacobian-free acceleration of the traditional fixed point iteration technique is used to reduce the number of iterations needed between the distribution and wave codes to converge to self-consistency. The computational burden of the parallel full wave codes has been reduced by using a more efficient two level parallel decomposition that improves the strong scaling of the codes and reduces the communication overhead.

J C Wright; A Bader; L A Berry; P T Bonoli; R W Harvey; E F Jaeger; J-P Lee; A Schmidt; E D'Azevedo; I Faust; C K Phillips; E Valeo

2014-01-01T23:59:59.000Z

306

OUTDOOR RECREATION DEMAND AND EXPENDITURES: LOWER SNAKE RIVER RESERVOIRS  

E-Print Network (OSTI)

i OUTDOOR RECREATION DEMAND AND EXPENDITURES: LOWER SNAKE RIVER RESERVOIRS John R. Mc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v SECTION ONE - OUTDOOR RECREATION DEMAND . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Recreation Demand Methods

O'Laughlin, Jay

307

Optimization Online - Lower Bounding Procedures for the Single ...  

E-Print Network (OSTI)

Nov 30, 2014 ... Lower Bounding Procedures for the Single Allocation Hub Location Problem. Borzou Rostami(brostami ***at*** mathematik.tu-dortmund.de)

Borzou Rostami

2014-11-30T23:59:59.000Z

308

,"Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",2...

309

,"Lower 48 Federal Offshore Coalbed Methane Proved Reserves ...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 Federal Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2013 ,"Release...

310

Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate...  

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

Liquids Lease Condensate, Proved Reserves (Million Barrels) Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels) Decade Year-0 Year-1...

311

,"Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",2...

312

Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate...  

Gasoline and Diesel Fuel Update (EIA)

Reserves Based Production (Million Barrels) Lower 48 Federal Offshore Natural Gas Liquids Lease Condensate, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2...

313

Lower Watts Bar Reservoir Clinch River/Poplar Creek  

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

This document explains the cleanup activities and any use limitations for the land surrounding the Lower Watts Bar Reservoir Clinch River/Poplar Creek.

314

Lower 48 States Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Lower 48 States Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

315

Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected...  

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

Plant Liquids, Expected Future Production (Million Barrels) Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1...

316

Lower 48 Federal Offshore Natural Gas Plant Liquids, Reserves...  

Gasoline and Diesel Fuel Update (EIA)

Reserves Based Production (Million Barrels) Lower 48 Federal Offshore Natural Gas Plant Liquids, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

317

Developing a Lower Cost and Higher Energy Density Alternative...  

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

for Advanced Batteries ADVANCED MANUFACTURING OFFICE Developing a Lower Cost and Higher Energy Density Alternative to Lithium-Ion Batteries Introduction As the world moves toward...

318

Accurate Detection of Impurities in Hydrogen Fuel at Lower Cost...  

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

Accurate Detection of Impurities in Hydrogen Fuel at Lower Cost Technology available for licensing: Two alternative strategies for detecting impurities in the hydrogen used in fuel...

319

BELLORADO, KAV CI C, LI PING: IEEE TRANSACTIONS ON INFORMATION THEORY LETTERS 1 Low Complexity Soft Decoding Algorithms for Reed-Solomon  

E-Print Network (OSTI)

a practical approach to the iterative decoding of Reed-Solomon (RS) codes. The presented methodology utilizes Soft Decoding Algorithms for Reed-Solomon Codes: Part II - Soft-Input-Soft-Output Iterative Decoding with the presented methodology. The complexity of the proposed algorithm is significantly lower than these existing

Kavcic, Aleksandar

320

Supergravity, complex parameters and the Janis-Newman algorithm  

E-Print Network (OSTI)

The Demia\\'nski-Janis-Newman algorithm is an original solution generating technique. For a long time it has been limited to producing rotating solutions, restricting to the case of a metric and real scalar fields, despite the fact that Demia\\'nski extended it to include more parameters such as a NUT charge. Recently two independent prescriptions have been given for extending the algorithm to gauge fields and thus electrically charged configurations. In this paper we aim to end setting up the algorithm by providing a missing but important piece, which is how the transformation is applied to complex scalar fields. We illustrate our proposal through several examples taken from N=2 supergravity, including the stationary BPS solutions from Behrndt et al. and Sen's axion-dilaton rotating black hole. Moreover we discuss solutions that include pairs of complex parameters, such as the mass and the NUT charge, or the electric and magnetic charges, and we explain how to perform the algorithm in this context (with the ex...

Erbin, Harold

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1997 Annual Report.  

SciTech Connect

This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha and steelhead trout O. mykiss smolts during the 1997 spring out-migration at migrant traps on the Snake River and Salmon River. All hatchery chinook salmon released above Lower Granite Dam were marked with a fin clip in 1997. Total annual hatchery chinook salmon catch at the Snake River trap was 49% of the 1996 number but only 6% of the 1995 catch. The wild chinook catch was 77% of the 1996 but was only 13% of 1995. Hatchery steelhead trout catch was 18% of 1996 numbers but only 7% of the 1995 numbers. Wild steelhead trout catch was 22% of 1996 but only 11% of the 1995 numbers. The Snake River trap collected eight age-0 chinook salmon and one sockeye/kokanee salmon O. nerka. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with high flows. Trap operations were terminated for the season due to high flows and trap damage on May 8 and were out of operation for 23 d due to high flow and debris. Hatchery chinook salmon catch at the Salmon River trap was 37% and wild chinook salmon catch was 60% of 1996 numbers but only 5% and 11% of 1995 catch, respectively. The 1997 hatchery steelhead trout collection was 13% of the 1996 catch and 32% of the 1995 numbers. Wild steelhead trout collection in 1997 was 21% of the 1996 catch and 13% of the 1995 numbers. Trap operations were terminated for the season due to high flows and trap damage on May 7 and were out of operation for 19 d due to high flow and debris.

Buettner, Edwin W.; Nelson, William R.

1999-04-01T23:59:59.000Z

322

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1999 Annual Report.  

SciTech Connect

This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon smolts O. nerka during the 1999 spring out-migration at migrant traps on the Snake River and Salmon River. All hatchery chinook salmon released above Lower Granite Dam were marked with a fin clip in 1999. Total annual hatchery chinook salmon catch at the Snake River trap was 440% of the 1998 number. The wild chinook catch was 603% of the previous year's catch. Hatchery steelhead trout catch was 93% of 1998 numbers. Wild steelhead trout catch was 68% of 1998 numbers. The Snake River trap collected 62 age-0 chinook salmon. During 1998 the Snake River trap captured 173 hatchery and 37 wild/natural sockeye salmon and 130 hatchery coho salmon O. kisutch. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with high flows. Trap operations began on March 14 and were terminated for the season due to high flows on May 25. The trap was out of operation for 18 d during the season due to high flow and debris. Hatchery chinook salmon catch at the Salmon River trap was 214%, and wild chinook salmon catch was 384% of 1998 numbers. The hatchery steelhead trout collection in 1999 was 210% of the 1998 numbers. Wild steelhead trout collection in 1999 was 203% of the 1998 catch. Trap operations began on March 14 and were terminated for the season due to high flows on May 21. The trap was out of operation for 17 d during the season due to high flow and debris.

Buettner, Edwin W.; Brimmer, Arnold F.; Putnam, Scott A.

2001-06-01T23:59:59.000Z

323

Advanced Algorithms Course. Lecture Notes. Part 4  

E-Print Network (OSTI)

algorithms for Weighted Vertex Cover, but this was only an example to demonstrate the technique of LP for Vertex Cover. In general (for any set miniAdvanced Algorithms Course. Lecture Notes. Part 4 Using Linear Programming for Approximation

Damaschke, Peter

324

An optimal filtering algorithm for table constraints  

Science Journals Connector (OSTI)

Filtering algorithms for table constraints are constraint-based, which means that the propagation queue only contains information on the constraints that must be reconsidered. This paper proposes four efficient value-based algorithms for table constraints, ...

Jean-Baptiste Mairy; Pascal Van Hentenryck; Yves Deville

2012-10-01T23:59:59.000Z

325

The IMAGETCL multimedia algorithm development system  

Science Journals Connector (OSTI)

The IMAGETCL multimedia development system is a new Tcl/Tk-based development environment specifically targeting development of high-performance multimedia data analysis algorithms. Multimedia algorithm development is complicated by large volumes of data, ...

Charles B. Owen

1997-07-01T23:59:59.000Z

326

Discharge cell for ozone generator  

DOE Patents (OSTI)

A discharge cell for use in an ozone generator is provided which can suppress a time-related reduction in ozone concentration without adding a catalytic gas such as nitrogen gas to oxygen gas as a raw material gas. The discharge cell includes a pair of electrodes disposed in an opposed spaced relation with a discharge space therebetween, and a dielectric layer of a three-layer structure consisting of three ceramic dielectric layers successively stacked on at least one of the electrodes, wherein a first dielectric layer of the dielectric layer contacting the one electrode contains no titanium dioxide, wherein a second dielectric layer of the dielectric layer exposed to the discharge space contains titanium dioxide in a metal element ratio of not lower than 10 wt %.

Nakatsuka, Suguru (Amagasaki, JP)

2000-01-01T23:59:59.000Z

327

A pencil beam algorithm for helium ion beam therapy  

SciTech Connect

Purpose: To develop a flexible pencil beam algorithm for helium ion beam therapy. Dose distributions were calculated using the newly developed pencil beam algorithm and validated using Monte Carlo (MC) methods. Methods: The algorithm was based on the established theory of fluence weighted elemental pencil beam (PB) kernels. Using a new real-time splitting approach, a minimization routine selects the optimal shape for each sub-beam. Dose depositions along the beam path were determined using a look-up table (LUT). Data for LUT generation were derived from MC simulations in water using GATE 6.1. For materials other than water, dose depositions were calculated by the algorithm using water-equivalent depth scaling. Lateral beam spreading caused by multiple scattering has been accounted for by implementing a non-local scattering formula developed by Gottschalk. A new nuclear correction was modelled using a Voigt function and implemented by a LUT approach. Validation simulations have been performed using a phantom filled with homogeneous materials or heterogeneous slabs of up to 3 cm. The beams were incident perpendicular to the phantoms surface with initial particle energies ranging from 50 to 250 MeV/A with a total number of 10{sup 7} ions per beam. For comparison a special evaluation software was developed calculating the gamma indices for dose distributions. Results: In homogeneous phantoms, maximum range deviations between PB and MC of less than 1.1% and differences in the width of the distal energy falloff of the Bragg-Peak from 80% to 20% of less than 0.1 mm were found. Heterogeneous phantoms using layered slabs satisfied a {gamma}-index criterion of 2%/2mm of the local value except for some single voxels. For more complex phantoms using laterally arranged bone-air slabs, the {gamma}-index criterion was exceeded in some areas giving a maximum {gamma}-index of 1.75 and 4.9% of the voxels showed {gamma}-index values larger than one. The calculation precision of the presented algorithm was considered to be sufficient for clinical practice. Although only data for helium beams was presented, the performance of the pencil beam algorithm for proton beams was comparable. Conclusions: The pencil beam algorithm developed for helium ions presents a suitable tool for dose calculations. Its calculation speed was evaluated to be similar to other published pencil beam algorithms. The flexible design allows easy customization of measured depth-dose distributions and use of varying beam profiles, thus making it a promising candidate for integration into future treatment planning systems. Current work in progress deals with RBE effects of helium ions to complete the model.

Fuchs, Hermann; Stroebele, Julia; Schreiner, Thomas; Hirtl, Albert; Georg, Dietmar [Christian Doppler Laboratory for Medical Radiation Research for Radiation Oncology, Medical University of Vienna, 1090 Vienna (Austria); Department of Radiation Oncology, Medical University of Vienna/AKH Vienna, 1090 Vienna (Austria) and Comprehensive Cancer Center, Medical University of Vienna/AKH Vienna, 1090 Vienna (Austria); Department of Radiation Oncology, Medical University of Vienna/AKH Vienna (Austria) and Comprehensive Cancer Center, Medical University of Vienna/AKH Vienna, 1090 Vienna (Austria); PEG MedAustron, 2700 Wiener Neustadt (Austria); Department of Nuclear Medicine, Medical University of Vienna, 1090 Vienna (Austria); Christian Doppler Laboratory for Medical Radiation Research for Radiation Oncology, Medical University of Vienna, 1090 Vienna (Austria); Department of Radiation Oncology, Medical University of Vienna/AKH Vienna, 1090 Vienna (Austria) and Comprehensive Cancer Center, Medical University of Vienna/AKH Vienna, 1090 Vienna (Austria)

2012-11-15T23:59:59.000Z

328

Theoretically Mesh Generation-  

E-Print Network (OSTI)

on heuristic meshing Vavasis Steven Mesh courtesy Marshall Bern, David Eppstein, and John Gilbert. ``Provably. William H. Frey introduces circumcenter Engineering 24(11):2183-2200, November 1987. insertion. Rafferty refinement algorithm with good grading & size-optimality. 1990: Marshall Bern, David Eppstein, and John R

California at Berkeley, University of

329

Comprehensive database on Induan (Lower Triassic) to Sinemurian (Lower Jurassic) marine bivalve genera and their paleobiogeographic record  

E-Print Network (OSTI)

Marine bivalve genera that were described or mentioned for Triassic and Lower Jurassic deposits worldwide are reviewed in terms of their validity, stratigraphic range, paleogeographic distribution, paleoautecology, and ...

Ros-Franch, Sonia; Marquez-Aliaga, Ana; Damborenea, Susana

2014-04-10T23:59:59.000Z

330

Implementation of the Iterative Proportion Fitting Algorithm for Geostatistical Facies Modeling  

SciTech Connect

In geostatistics, most stochastic algorithm for simulation of categorical variables such as facies or rock types require a conditional probability distribution. The multivariate probability distribution of all the grouped locations including the unsampled location permits calculation of the conditional probability directly based on its definition. In this article, the iterative proportion fitting (IPF) algorithm is implemented to infer this multivariate probability. Using the IPF algorithm, the multivariate probability is obtained by iterative modification to an initial estimated multivariate probability using lower order bivariate probabilities as constraints. The imposed bivariate marginal probabilities are inferred from profiles along drill holes or wells. In the IPF process, a sparse matrix is used to calculate the marginal probabilities from the multivariate probability, which makes the iterative fitting more tractable and practical. This algorithm can be extended to higher order marginal probability constraints as used in multiple point statistics. The theoretical framework is developed and illustrated with estimation and simulation example.

Li Yupeng, E-mail: yupeng@ualberta.ca; Deutsch, Clayton V. [University of Alberta (Canada)

2012-06-15T23:59:59.000Z

331

Efficiency improvement and torque ripple minimization of Switched Reluctance Motor using FEM and Seeker Optimization Algorithm  

Science Journals Connector (OSTI)

Abstract In this paper, performance optimization of Switched Reluctance Motor (SRM) was determined using Seeker Optimization Algorithm (SOA). The most efficient aim of the algorithm was found for maximum torque value at a minimum mass of the entire construction, following changing the geometric parameters. The optimization process was carried out using a combination of Seeker Optimization Algorithm and Finite Element Method (FEM). Fitness value was calculated by FEM analysis using COMSOL3.4, and the SOA was realized by MATLAB. The proposed method has been applied for a case study and it has been also compared with Genetic Algorithm (GA). The results show that the optimized motor using SOA had higher torque value and efficiency with lower mass and torque ripple, exhibiting the validity of this methodology for SRM design.

Mohammad Javad Navardi; Behnaz Babaghorbani; Abbas Ketabi

2014-01-01T23:59:59.000Z

332

An SRP-based energy-efficient scheduling algorithm for dependent real-time tasks  

Science Journals Connector (OSTI)

In this paper, we are interested in the energy-efficient scheduling of dependent real-time tasks which may access multiunit resources. Based on the well-known stack resource policy (SRP), we propose the blocking-time stealing (BTS) algorithm to schedule dynamic-priority and fixed-priority tasks on a non-ideal dynamic voltage scaling (DVS) processor. Under the BTS algorithm, tasks are scheduled to be executed at proper processor speeds which are determined according to the sufficient schedulability conditions of the earliest deadline first (EDF) and the rate monotonic (RM) algorithms. The BTS algorithm measures dynamically the slack between the actual blocking time of a task and its estimated worst-case blocking time. The slack is then exploited to lower the processor speed guaranteeing that the feasibility of tasks is not affected. As a result, the energy consumption can be reduced while satisfying the timing constraints of real-time tasks.

Jun Wu; Jun-Xing Wu

2014-01-01T23:59:59.000Z

333

An algorithm for minimization of quantum cost  

E-Print Network (OSTI)

A new algorithm for minimization of quantum cost of quantum circuits has been designed. The quantum cost of different quantum circuits of particular interest (eg. circuits for EPR, quantum teleportation, shor code and different quantum arithmetic operations) are computed by using the proposed algorithm. The quantum costs obtained using the proposed algorithm is compared with the existing results and it is found that the algorithm has produced minimum quantum cost in all cases.

Anindita Banerjee; Anirban Pathak

2009-10-12T23:59:59.000Z

334

Repetitions in strings: algorithms and combinatorics  

E-Print Network (OSTI)

is that stuttering is likely to slow down any string-matching algorithm. The analysis of periods is even more

Paris-Sud XI, Université de

335

Limit theorems for stochastic approximation algorithms  

E-Print Network (OSTI)

We prove a central limit theorem applicable to one dimensional stochastic approximation algorithms that converge to a point where the error terms of the algorithm do not vanish. We show how this applies to a certain class of these algorithms that in particular covers a generalized P\\'olya urn model, which is also discussed. In addition, we show how to scale these algorithms in some cases where we cannot determine the limiting distribution but expect it to be non-normal.

Renlund, Henrik

2011-01-01T23:59:59.000Z

336

The nature of moss and lower atmospheric seismology  

Science Journals Connector (OSTI)

...TR (i.e. thermal interface between...perform lower atmospheric seismology...chromospheric plasma upwards at...despite the atmospheric seeing deformations...EUV-emitting plasma in its vicinity...tunnel some non-propagating...examples of lower atmospheric seismology...in the solar plasma. Figure 1...

2006-01-01T23:59:59.000Z

337

A useful strong lower bound on two-qubit concurrence  

Science Journals Connector (OSTI)

A new strong lower bound on concurrence for two-qubit states is derived. Its equality with the concurrence itself for the pure- and X-states is proved analytically; while extensive numerical computations show that equality for a general mixed state may ... Keywords: Concurrence, Entanglement, Localizable entanglement, Lower bound

Mojtaba Jafarpour; Abbass Sabour

2012-12-01T23:59:59.000Z

338

Updated distribution and reintroduction of the Lower Keys marsh rabbit  

E-Print Network (OSTI)

, privately-owned parcels of land intersecting the area encompassed by occupied or potential Lower Keys marsh rabbit populations on Boca Chica and Saddlehill keys in 2001?2003 ................................................... 116 4....2 Undeveloped and partially-developed (parcels of land intersecting the area encompassed by occupied or potential Lower Keys marsh rabbit populations on Sugarloaf and the Saddlebunch keys in 2001...

Faulhaber, Craig Alan

2005-02-17T23:59:59.000Z

339

Lower Bounds for Betti Numbers of Special Extensions  

E-Print Network (OSTI)

Lower Bounds for Betti Numbers of Special Extensions Melvin Hochster Benjamin Richert University 0 !M ! 0; where f#11; M 0 ; : : : ; #11; M n g are the Betti numbers of M . Giving lower bounds for these Betti numbers has been a long standing problem in commutative algebra. In fact, in 1977, Buchsbaum

Hochster, Melvin

340

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan Volume II ­ Subbasin Plan Chapter.F. Kalama Subbasin II.G. Lewis Subbasin II.H. Lower Columbia Tributaries II.I. Washougal Subbasin II.J. Wind and wildlife species of interest to recovery and subbasin planning. Appdx. C Program Directory Descriptions

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan APPENDIX D - ECONOMICS Lower Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White Salmon Subbasin II.L. Columbia Descriptions, status, and limiting factors of other fish and wildlife species of interest to recovery

342

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan APPENDIX E ­ ASSESSMENT METHODS Subbasin II.H. Lower Columbia Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White. Appdx. B Other Species Descriptions, status, and limiting factors of other fish and wildlife species

343

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan Volume II ­ Subbasin Plan Chapter Subbasin II.G. Lewis Subbasin II.H. Lower Columbia Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin and wildlife species of interest to recovery and subbasin planning. Appdx. C Program Directory Descriptions

344

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan APPENDIX C ­ PROGRAM DIRECTORY Subbasin II.H. Lower Columbia Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White. Appdx. B Other Species Descriptions, status, and limiting factors of other fish and wildlife species

345

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan APPENDIX B - OTHER SPECIES Lower Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White Salmon Subbasin II.L. Columbia Descriptions, status, and limiting factors of other fish and wildlife species of interest to recovery

346

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan APPENDIX A ­ FOCAL FISH Lower Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White Salmon Subbasin II.L. Columbia Descriptions, status, and limiting factors of other fish and wildlife species of interest to recovery

347

Factorization law for two lower bounds of concurrence  

SciTech Connect

We study the dynamics of two lower bounds of concurrence in bipartite quantum systems when one party goes through an arbitrary channel. We show that these lower bounds obey the factorization law similar to that of [Konrad et al., Nat. Phys. 4, 99 (2008)]. We also discuss the application of this property in an example.

Mirafzali, Sayyed Yahya; Sargolzahi, Iman; Ahanj, Ali; Javidan, Kurosh; Sarbishaei, Mohsen [Department of Physics, Ferdowsi University of Mashhad, Mashhad (Iran, Islamic Republic of); Khayyam Institute of Higher Education, Mashhad, Iran and School of Physics, Institute for Research in Fundamental Science (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Department of Physics, Ferdowsi University of Mashhad, Mashhad (Iran, Islamic Republic of)

2010-09-15T23:59:59.000Z

348

Supplement to the Mainstem Lower Columbia River and  

E-Print Network (OSTI)

Recovery Board LCREP Lower Columbia River Estuary Partnership LF limiting factor NOAA National Oceanic Subbasin and Lower Columbia Fish Recovery Board Subbasin 2 Focal Species Selection Figure 1 Distribution Mainstem SUPPLEMENT TEXT.DOC III #12;#12;Acronyms and Abbreviations APRE Artificial Production Review

349

The Iron Spin Transition in the Earth's Lower Mantle  

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

The Iron Spin Transition in the Earth's Lower Mantle Print The Iron Spin Transition in the Earth's Lower Mantle Print It is now known that the iron present in minerals of the lower mantle of the Earth undergoes a pressure-induced transition with pairing of the spins of its 3d electrons. A team from the University of California, Berkeley, Tel Aviv University, and Lawrence Livermore National Laboratory has used x-ray diffraction at very high pressure to investigate the effects of this transition on the elastic properties of magnesiowüstite (Mg1-xFex)O, the second most abundant mineral in the Earth's lower mantle. The new results suggest that the effect of the spin-pairing transition on magnesiowüstite can be large enough to require a partial revision of the most accepted model of the lower mantle composition.

350

The Iron Spin Transition in the Earth's Lower Mantle  

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

The Iron Spin Transition in the Earth's Lower Mantle Print The Iron Spin Transition in the Earth's Lower Mantle Print It is now known that the iron present in minerals of the lower mantle of the Earth undergoes a pressure-induced transition with pairing of the spins of its 3d electrons. A team from the University of California, Berkeley, Tel Aviv University, and Lawrence Livermore National Laboratory has used x-ray diffraction at very high pressure to investigate the effects of this transition on the elastic properties of magnesiowüstite (Mg1-xFex)O, the second most abundant mineral in the Earth's lower mantle. The new results suggest that the effect of the spin-pairing transition on magnesiowüstite can be large enough to require a partial revision of the most accepted model of the lower mantle composition.

351

The Iron Spin Transition in the Earth's Lower Mantle  

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

The Iron Spin Transition in the Earth's Lower Mantle Print The Iron Spin Transition in the Earth's Lower Mantle Print It is now known that the iron present in minerals of the lower mantle of the Earth undergoes a pressure-induced transition with pairing of the spins of its 3d electrons. A team from the University of California, Berkeley, Tel Aviv University, and Lawrence Livermore National Laboratory has used x-ray diffraction at very high pressure to investigate the effects of this transition on the elastic properties of magnesiowüstite (Mg1-xFex)O, the second most abundant mineral in the Earth's lower mantle. The new results suggest that the effect of the spin-pairing transition on magnesiowüstite can be large enough to require a partial revision of the most accepted model of the lower mantle composition.

352

The Iron Spin Transition in the Earth's Lower Mantle  

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

The Iron Spin Transition in the The Iron Spin Transition in the Earth's Lower Mantle The Iron Spin Transition in the Earth's Lower Mantle Print Wednesday, 30 April 2008 00:00 It is now known that the iron present in minerals of the lower mantle of the Earth undergoes a pressure-induced transition with pairing of the spins of its 3d electrons. A team from the University of California, Berkeley, Tel Aviv University, and Lawrence Livermore National Laboratory has used x-ray diffraction at very high pressure to investigate the effects of this transition on the elastic properties of magnesiowüstite (Mg1-xFex)O, the second most abundant mineral in the Earth's lower mantle. The new results suggest that the effect of the spin-pairing transition on magnesiowüstite can be large enough to require a partial revision of the most accepted model of the lower mantle composition.

353

Steam generator support system  

DOE Patents (OSTI)

A support system for connection to an outer surface of a J-shaped steam generator for use with a nuclear reactor or other liquid metal cooled power source. The J-shaped steam generator is mounted with the bent portion at the bottom. An arrangement of elongated rod members provides both horizontal and vertical support for the steam generator. The rod members are interconnected to the steam generator assembly and a support structure in a manner which provides for thermal distortion of the steam generator without the transfer of bending moments to the support structure and in a like manner substantially minimizes forces being transferred between the support structure and the steam generator as a result of seismic disturbances.

Moldenhauer, James E. (Simi Valley, CA)

1987-01-01T23:59:59.000Z

354

Steam generator support system  

DOE Patents (OSTI)

A support system for connection to an outer surface of a J-shaped steam generator for use with a nuclear reactor or other liquid metal cooled power source is disclosed. The J-shaped steam generator is mounted with the bent portion at the bottom. An arrangement of elongated rod members provides both horizontal and vertical support for the steam generator. The rod members are interconnected to the steam generator assembly and a support structure in a manner which provides for thermal distortion of the steam generator without the transfer of bending moments to the support structure and in a like manner substantially minimizes forces being transferred between the support structure and the steam generator as a result of seismic disturbances. 4 figs.

Moldenhauer, J.E.

1987-08-25T23:59:59.000Z

355

generation | OpenEI  

Open Energy Info (EERE)

generation generation Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 16, and contains only the reference case. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords AEO generation renewable energy renewable energy generating capacity Data application/vnd.ms-excel icon AEO2011: Renewable Energy Generating Capacity and Generation- Reference Case (xls, 118.9 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata

356

Automated Architectural Exploration for Signal Processing Algorithms  

E-Print Network (OSTI)

Automated Architectural Exploration for Signal Processing Algorithms Ramsey Hourani, Ravi Jenkal, W processing algorithms. The goal of our framework is to improve hardware architectural exploration by guiding Property (IP) cores for system level signal processing algorithms. We present our view of a framework

Davis, Rhett

357

Presenting Data from Experiments in Algorithmics  

E-Print Network (OSTI)

Presenting Data from Experiments in Algorithmics Peter Sanders 1? Max�Planck�Institut f�ur Informatik Saarbr�ucken, Germany sanders@mpi�sb.mpg.de Abstract. Algorithmic experiments yield large amounts tools such as gnuplot 1 . 1 Introduction A paper in experimental algorithmics will often start

Sanders, Peter

358

An efficient algorithm for minimumweight bibranching  

E-Print Network (OSTI)

that the following algorithm finds a minimum car­ dinality bibranching in a digraph: determine a minimum edge cover]. Presently, an O(m+n log n)­algorithm is known (cf. [5]). The minimum­weight edge cover problem canAn efficient algorithm for minimum­weight bibranching J. Keijsper and R. Pendavingh Faculteit der

Keijsper, Judith

359

DYNAMIC ALGORITHMS FOR THE DYCK LANGUAGES  

E-Print Network (OSTI)

DYNAMIC ALGORITHMS FOR THE DYCK LANGUAGES GUDMUND SKOVBJERG FRANDSEN, THORE HUSFELDT, PETER BRO the Dy­ namic Word problem for the free group. We present deterministic algorithms and data structures Las Vegas­ and Monte Carlo­type randomised algorithms to achieve better running times, and present

Miltersen, Peter Bro

360

Introduction to Algorithms May 29, 2014  

E-Print Network (OSTI)

· Greedy approximation algorithm: ­ at each step, pick set covering largest number of remaining uncovered items Theorem: greedy set cover algorithm achieves an approximation ratio of (ln m + 1) May 29, 2014 CS38 Lecture 18 6 #12;5/29/2014 2 Set cover Theorem: greedy set cover algorithm achieves

Umans, Chris

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Using Cycles and Scaling Parallel Algorithms  

E-Print Network (OSTI)

graph by finding a max­ imal set of edge­disjoint cycles. We give a parallel algorithm to find the first efficient parallel algorithm for finding an approximation to a min­ imum cycle cover. Our algorithm finds a cycle cover whose size is within a factor of O(1 + n log n m+n ) of the minimum sized

Yang, Junfeng

362

Algorithmics Towards programming as a mathematical activity  

E-Print Network (OSTI)

Algorithmics Towards programming as a mathematical activity Lambert Meenens Centre for Mathematics inefficient--algorithm, and to improve it by successively applying correctness-preserving transformations to this method are the verbosity of algorithmic notations, making the process cumber- some, and the semantic

Meertens, Lambert

363

Distributed algorithms for edge dominating sets  

E-Print Network (OSTI)

Distributed algorithms for edge dominating sets Jukka Suomela Helsinki Institute for Information problem · Simple 2-approximation algorithm: find any maximal matching 5 #12;Edge dominating sets · NP dominating sets · using deterministic distributed algorithms, in the port-numbering model · But why would we

Suomela, Jukka

364

Mechanical Verification of Clock Synchronization Algorithms ?  

E-Print Network (OSTI)

functions, in addition to averaging algorithms. The generic theory is presented as a set of param­ eterizedMechanical Verification of Clock Synchronization Algorithms ? D. Schwier and F. von Henke schwier,vhenke@informatik.uni­ulm.de Universit¨at Ulm, Fakult¨at f¨ur Informatik, D­89069 Ulm, Germany Abstract. Clock synchronization algorithms

Biundo, Susanne

365

An Analysis of Algorithms Laboratory Utilizing the  

E-Print Network (OSTI)

An Analysis of Algorithms Laboratory Utilizing the Maximum Segment Sum Problem Robert Mc a laboratory/homework exercise, appropriate for the traditional CS 2 or Data Structures & Algorithms course (CS 7) [1], that gives students practice in analyzing algorithms to determine their asymptotic run­ ning

McCloskey, Robert

366

CMPSCI 791N: Algorithms for Communication  

E-Print Network (OSTI)

: traditional algorithms. ffl Inputs: -- Multinode network (graph). -- Set of packets specified by: \\LambdaCMPSCI 791N: Algorithms for Communication Networks Seminar for Fall 1999 Instructor: Micah Adler of seminar: ffl To learn about networking research conducted in the algorithms community. ffl To explore

Adler, Micah

367

The Design and Analysis of Algorithms  

E-Print Network (OSTI)

serves a dual purpose: to cover core material in algorithms for graduate students in computer scienceThe Design and Analysis of Algorithms Dexter C. Kozen Cornell University December 1990 c Copyright in the design and analysis of algorithms. The material is thus a mixture of core and advanced topics. At rst I

Kozen, Dexter

368

The Weak Aggregating Algorithm and Weak Mixability  

E-Print Network (OSTI)

of the Weak Aggregating Algorithm that covers unbounded games is also described. #12; CONTENTS 2 Contents 1The Weak Aggregating Algorithm and Weak Mixability Yuri Kalnishkan Michael V. Vyugin 1 fyura the Weak Aggregating Algorithm that allows us to obtain additive terms of the form C p n. A modification

Kalnishkan, Yuri

369

Proceedings from Workshop on Experimental Algorithmics  

E-Print Network (OSTI)

Proceedings from Workshop on Experimental Algorithmics ALCOM­FT Deliverable D4 Rolf Fagerberg BRICS on Experimental Algorithmics held at Schlo? Dagstuhl, Wadern, Germany. The workshop took place in the period, to start establishing a methodology of experimental algorithmics by discussing problems like . What

Brodal, Gerth Stølting

370

Proceedings from Workshop on Experimental Algorithmics  

E-Print Network (OSTI)

Proceedings from Workshop on Experimental Algorithmics ALCOM-FT Deliverable D4 Rolf Fagerberg BRICS on Experimental Algorithmics held at Schlo? Dagstuhl, Wadern, Germany. The workshop took place in the period, to start establishing a methodology of experimental algorithmics by discussing problems like · What

Brodal, Gerth Stølting

371

Lattice Completion Algorithms for Distributed Computations  

E-Print Network (OSTI)

Lattice Completion Algorithms for Distributed Computations Vijay K. Garg Parallel and Distributed is usually modeled as a finite par- tially ordered set (poset) of events. Many operations on this poset new algorithms to construct or enumerate the lattice of normal cuts. Our algorithms are designed

Garg, Vijay

372

Fast algorithms for triangular Josephson junction arrays  

SciTech Connect

We develop fast algorithms for the numerical study of two-dimensional triangular Josephson junction arrays. The Dirac bra-ket formalism is introduced in the context of such arrays. We note that triangular arrays can have both hexagonal and rectangular periodicity and develop algorithms for each. Boundaries are next introduced and fast algorithms for finite arrays are developed. 40 refs., 4 figs.

Datta, S.; Sahdev, D. [Indian Institute of Technology, Kanpur (India)] [Indian Institute of Technology, Kanpur (India)

1997-04-01T23:59:59.000Z

373

Tafel Musik: Formatting algorithm of tables  

Science Journals Connector (OSTI)

This paper provides a description on the formatting algorithm of tables that the authors have developed. This algorithm is an important component of the so called TafeMusik (Tafel Musik) environment. TafeMusikprovides the user with an environment to ... Keywords: First-fit algorithm, Linear programming, Optimization, Tables, Tabular formatting, Tabular layout

K. -H. Shin; K. Kobayashi; A. Suzuki

1997-07-01T23:59:59.000Z

374

Deutsch Algorithm on Classical Circuits  

E-Print Network (OSTI)

The well-known Deutsch Algorithm (DA) and Deutsch-Jozsha Algorithm (DJA) both are used as an evidence to the power of quantum computers over classical computation mediums. In these theoretical experiments, it has been shown that a quantum computer can find the answer with certainty within a few steps although classical electronic systems must evaluate more iterations than quantum computer. In this paper, it is shown that a classical computation system formed by using ordinary electronic parts may perform the same task with equal performance than quantum computers. DA and DJA quantum circuits act like an analog computer, so it is unfair to compare the bit of classical digital computers with the qubit of quantum computers. An analog signal carrying wire will of course carry more information that a bit carrying wire without serial communication protocols.

Osman Kaan Erol

2008-03-21T23:59:59.000Z

375

An algorithm for combined heat and power economic dispatch  

SciTech Connect

This paper presents a new algorithm for Combined Heat and Power (CHP) economic dispatch. The CHP economic dispatch problem is decomposed into two subproblems: the heat dispatch and the power dispatch. The subproblems are connected through the heat-power feasible region constraints of co-generation units. The connection can be interpreted by the unit heat-power feasible region constraint multipliers in the Lagrangian function, and the interpretation naturally leads to the development of a two-layer algorithm. The outer layer uses the Lagrangian Relaxation technique to solve the power dispatch iteratively. In each iteration, the inner layer solves the heat dispatch with the unit heat capacities passed by the outer layer. The binding constraints of the heat dispatch are fed back to the outer layer to move the CHP economic dispatch towards a global optimal solution.

Guo, T.; Henwood, M.I. [Henwood Energy Services, Inc., Sacramento, CA (United States)] [Henwood Energy Services, Inc., Sacramento, CA (United States); Ooijen, M. van [Eindhoven Univ. of Technology (Netherlands)] [Eindhoven Univ. of Technology (Netherlands)

1996-11-01T23:59:59.000Z

376

Study of lower hybrid wave propagation in ionized gas by Hamiltonian theory  

SciTech Connect

In order to find an approximate solution to the Vlasov-Maxwell equation system describing the lower hybrid wave propagation in magnetic confined plasmas, the use of the WKB method leads to the ray tracing equations. The Hamiltonian character of the ray tracing equations is investigated analytically and numerically in order to deduce the physical properties of the wave propagating without absorption in the confined plasma. The consequences of the Hamiltonian character of the equations on the travelling wave, in particular, on the evolution of the parallel wavenumber along the propagation path have been accounted and the chaotic diffusion of the timeaveraged parallel wave-number towards higher values has been evaluated. Numerical analysis by means of a Runge-Kutta based algorithm implemented in a ray tracing code supplies the analytical considerations. A numerical tool based on the symplectic integration of the ray trajectories has been developed.

Casolari, A. [Universit di Pisa, Pisa (Italy); Cardinali, A. [Associazione Euratom-ENEA sulla Fusione, C.P. 65 - I-00044 - Frascati, Rome (Italy)

2014-02-12T23:59:59.000Z

377

Generation adequacy: Who decides?  

SciTech Connect

As part of a project for the Edison Electric Institute, the authors examined the commercial and reliability aspects of investments in new generation. This article reviews historical data and projections on new generating capacity, discusses the pros and cons of alternative ways to maintain adequacy, and quantifies the effects of mandating minimum planning-reserve margins versus reliance on market prices to stimulate investments in new generation.

Hirst, E.; Hadley, S.

1999-10-01T23:59:59.000Z

378

Annual Report Generator.  

E-Print Network (OSTI)

?? This report analyzes the needs to build an annual report generator which has the properties of Modularity, Simplicity in use and Maintainability based on (more)

Lin, Yingwei

2006-01-01T23:59:59.000Z

379

Hydrogen Generator Appliance  

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

lAbOrAtOry NG Workshop summary report - appeNDIX J slide presentation: hydrogen Generator appliance Gus Block, Nuvera Fuel Cells...

380

Biomass: Biogas Generator  

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

BIOGAS GENERATOR Curriculum: Biomass Power (organic chemistry, chemicalcarbon cycles, plants, energy resourcestransformations) Grade Level: Middle School (6-8) Small groups (3 to...

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Isolated trigger pulse generator  

DOE Patents (OSTI)

A trigger pulse generation system capable of delivering a multiplicity of isolated 100 kV trigger pulses with picosecond simultaneity. 2 figs.

Aaland, K.

1980-02-19T23:59:59.000Z

382

Generation | Department of Energy  

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

scheduling, dispatching, and accounting for capacity and energy generated at the 22 hydroelectric projects in the agencys 11-state marketing area. Southeastern has Certified...

383

EIA - Electricity Generating Capacity  

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

Electricity Generating Capacity Release Date: January 3, 2013 | Next Release: August 2013 Year Existing Units by Energy Source Unit Additions Unit Retirements 2011 XLS XLS XLS 2010...

384

SNE TRAFIC GENERATOR  

Energy Science and Technology Software Center (OSTI)

003027MLTPL00 Network Traffic Generator for Low-rate Small Network Equipment Software http://eln.lbl.gov/sne_traffic_gen.html

385

Near Optimal Online Algorithms and Fast Approximation Algorithms for Resource Allocation Problems  

E-Print Network (OSTI)

algorithm to solve very large LPs with both packing and covering constraints. We give algo- rithms to the ratio described for the online setting. We discuss several applications, and how our algorithms improve Algorithms, Economics, Theory Keywords Online algorithms, Stochastic input, Packing-Covering 1. INTRODUCTION

Sandholm, Tuomas W.

386

Electricity Generation | Department of Energy  

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

Electricity Generation Electricity Generation Photo of geothermal power plant. A geothermal resource requires fluid, heat and permeability in order to generate electricity:...

387

High pressure humidification columns: Design equations, algorithm, and computer code  

SciTech Connect

This report describes the detailed development of a computer model to simulate the humidification of an air stream in contact with a water stream in a countercurrent, packed tower, humidification column. The computer model has been developed as a user model for the Advanced System for Process Engineering (ASPEN) simulator. This was done to utilize the powerful ASPEN flash algorithms as well as to provide ease of use when using ASPEN to model systems containing humidification columns. The model can easily be modified for stand-alone use by incorporating any standard algorithm for performing flash calculations. The model was primarily developed to analyze Humid Air Turbine (HAT) power cycles; however, it can be used for any application that involves a humidifier or saturator. The solution is based on a multiple stage model of a packed column which incorporates mass and energy, balances, mass transfer and heat transfer rate expressions, the Lewis relation and a thermodynamic equilibrium model for the air-water system. The inlet air properties, inlet water properties and a measure of the mass transfer and heat transfer which occur in the column are the only required input parameters to the model. Several example problems are provided to illustrate the algorithm`s ability to generate the temperature of the water, flow rate of the water, temperature of the air, flow rate of the air and humidity of the air as a function of height in the column. The algorithm can be used to model any high-pressure air humidification column operating at pressures up to 50 atm. This discussion includes descriptions of various humidification processes, detailed derivations of the relevant expressions, and methods of incorporating these equations into a computer model for a humidification column.

Enick, R.M. [Pittsburgh Univ., PA (United States). Dept. of Chemical and Petroleum Engineering; Klara, S.M. [USDOE Pittsburgh Energy Technology Center, PA (United States); Marano, J.J. [Burns and Roe Services Corp., Pittsburgh, PA (United States)

1994-07-01T23:59:59.000Z

388

Optimal Placement of the Wind Generators in the Medium Voltage Power Grid  

Science Journals Connector (OSTI)

The minimization of power losses in the medium voltage (MV) grid requires adjustment of network of power sources. This problem is particularly important for renewable energy sources, for example for the farms of wind generators. Their placement and nominal ... Keywords: medium voltage power grid, wind generators, genetic algorithms, parallel processing

Andrzej Jordan; Ryszard Szczebiot; Carsten Maple; Slawomir Cieslik

2011-04-01T23:59:59.000Z

389

Original article: An automatic unstructured grid generation method for viscous flow simulations  

Science Journals Connector (OSTI)

High aspect-ratio grids are required for accurate solution of boundary layer and wake flow. An approach for the efficient generation of isotropic and stretched viscous unstructured grids is introduced in this paper. The proposed grid generation algorithm ... Keywords: Stretched cells, Unstructured grid, Viscous layers

Seyed Saied Bahrainian; Zahra Mehrdoost

2012-09-01T23:59:59.000Z

390

Kivalina wind generator  

SciTech Connect

The project reported was to construct a system to harness the winds of an Arctic site to generate electricity that would power a greenhouse where fruit and vegetables could be raised for local consumption. The installation of the tower and an Enertech 4K wind generator are described. (LEW)

Aldrich, D.

1984-02-18T23:59:59.000Z

391

Nanowires for energy generation  

Science Journals Connector (OSTI)

As a result of their morphology, nanowires bring new properties and the promise of performance for a range of electronic devices. This review looks into the properties of nanowires and the multiple ways in which they have been exploited for energy generation, from photovoltaics to piezoelectric generators.

Pritesh Hiralal; Husnu Emrah Unalan; Gehan A

2012-01-01T23:59:59.000Z

392

features Utility Generator  

E-Print Network (OSTI)

#12;#12;#12;#12;features function utility Training Pool Utility Generator Per-frame function content utility classes utility classes utility Tree Decision Generator Module Utility Clustering Adaptive Content Classification Loop features content VO selection & Utility Selector content features Real

Chang, Shih-Fu

393

Event generator overview  

SciTech Connect

Due to their ability to provide detailed and quantitative predictions, the event generators have become an important part of studying relativistic heavy ion physics and of designing future experiments. In this talk, the author will briefly summarize recent progress in developing event generators for the relativistic heavy ion collisions.

Pang, Y.

1997-12-01T23:59:59.000Z

394

Improved solid aerosol generator  

DOE Patents (OSTI)

An improved solid aerosol generator used to produce a gas borne stream of dry, solid particles of predetermined size and concentration. The improved solid aerosol generator nebulizes a feed solution of known concentration with a flow of preheated gas and dries the resultant wet heated aerosol in a grounded, conical heating chamber, achieving high recovery and flow rates. 2 figs.

Prescott, D.S.; Schober, R.K.; Beller, J.

1988-07-19T23:59:59.000Z

395

Knapsack Problems with Sigmoid Utilities: Approximation Algorithms via Hybrid Optimization$  

E-Print Network (OSTI)

Knapsack Problems with Sigmoid Utilities: Approximation Algorithms via Hybrid Optimization$ Vaibhav with sigmoid utilities. We merge approximation algorithms from discrete optimization with algorithms from continuous optimization to develop approximation algorithms for these NP-hard problems with sigmoid utilities

Bullo, Francesco

396

Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California  

E-Print Network (OSTI)

out-of-state coal would tend to lower the economic value ofeconomic value of variable generation. New Investments This model allows for new investments in coal,

Mills, Andrew

2013-01-01T23:59:59.000Z

397

Reactivity of Acid Generators  

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

Reactivity of Acid Generators for Chemically Amplified Resists with Reactivity of Acid Generators for Chemically Amplified Resists with Low-Energy Electrons Atsuro Nakano, Takahiro Kozawa, Seiichi Tagawa, Tomasz Szreder, James F. Wishart, Toshiyuki Kai and Tsutomu Shimokawa Jpn. J. Appl. Phys., 45, L197-L200 (2006). [Find paper at the Japanese Journal of Applied Physics] Abstract: In chemically amplified resists for ionizing radiations such as electron beams and extreme ultraviolet (EUV), low-energy electrons play an important role in the pattern formation processes. The reactivity of acid generators with low-energy electrons was evaluated using solvated electrons in tetrahydrofuran, which were generated by a pulsed electron beam. The rate constants of acid generators with the solvated electrons ranged from 0.6 to 1.9 x 1011 M-1s-1

398

Cambodia-Lowering Emissions in Asia's Forests (LEAF) | Open Energy  

Open Energy Info (EERE)

Cambodia-Lowering Emissions in Asia's Forests (LEAF) Cambodia-Lowering Emissions in Asia's Forests (LEAF) Jump to: navigation, search Name Cambodia-Lowering Emissions in Asia's Forests (LEAF) Agency/Company /Organization United States Agency for International Development Sector Climate, Land Focus Area Biomass, Forestry Topics GHG inventory, Low emission development planning, -LEDS Resource Type Training materials Website http://www.snvworld.org/en/sec Country Cambodia South-Eastern Asia References LEAF[1] "Lowering Emissions in Asia's Forests (LEAF), supported by USAID/RDMA, aims to strengthen the capacity of target countries to achieve meaningful and sustained reductions in GHG emissions from the forestry-land use sector while assisting them in benefitting from the emerging international REDD+

399

ARM - Field Campaign - Lower Atmospheric Boundary Layer Experiment  

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

govCampaignsLower Atmospheric Boundary Layer Experiment govCampaignsLower Atmospheric Boundary Layer Experiment Campaign Links LABLE Website Related Campaigns 2013 Lower Atmospheric Boundary Layer Experiment 2013.05.28, Turner, SGP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Lower Atmospheric Boundary Layer Experiment 2012.09.17 - 2012.11.13 Lead Scientist : David Turner Description Boundary layer turbulence is an important process that is parameterized in most atmospheric numerical models. Turbulence redistributes energy and mass within the boundary layer. Many different characteristics can impact the character of turbulence in the boundary layer, including different surface types, horizontal wind speed and direction, and the vertical temperature structure of the atmosphere. However, there have been few studies that have

400

Vietnam-Lowering Emissions in Asia's Forests (LEAF) | Open Energy  

Open Energy Info (EERE)

Vietnam-Lowering Emissions in Asia's Forests (LEAF) Vietnam-Lowering Emissions in Asia's Forests (LEAF) Jump to: navigation, search Name Vietnam-Lowering Emissions in Asia's Forests (LEAF) Agency/Company /Organization United States Agency for International Development Sector Climate, Land Focus Area Biomass, Forestry Topics GHG inventory, Low emission development planning, -LEDS Resource Type Training materials Website http://www.snvworld.org/en/sec Country Vietnam South-Eastern Asia References LEAF[1] "Lowering Emissions in Asia's Forests (LEAF), supported by USAID/RDMA, aims to strengthen the capacity of target countries to achieve meaningful and sustained reductions in GHG emissions from the forestry-land use sector while assisting them in benefitting from the emerging international REDD+ framework.

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Lowering Emissions in Asia's Forests (LEAF) | Open Energy Information  

Open Energy Info (EERE)

Lowering Emissions in Asia's Forests (LEAF) Lowering Emissions in Asia's Forests (LEAF) Jump to: navigation, search Name Lowering Emissions in Asia's Forests (LEAF) Agency/Company /Organization United States Agency for International Development Sector Climate, Land Focus Area Biomass, Forestry Topics GHG inventory, Low emission development planning, -LEDS Resource Type Training materials Website http://www.snvworld.org/en/sec Country Cambodia, Laos, Malaysia, Papua New Guinea, Thailand, Vietnam South-Eastern Asia, South-Eastern Asia, South-Eastern Asia, Melanesia, South-Eastern Asia, South-Eastern Asia References LEAF[1] "Lowering Emissions in Asia's Forests (LEAF), supported by USAID/RDMA, aims to strengthen the capacity of target countries to achieve meaningful and sustained reductions in GHG emissions from the forestry-land use sector

402

Thailand-Lowering Emissions in Asia's Forests (LEAF) | Open Energy  

Open Energy Info (EERE)

Thailand-Lowering Emissions in Asia's Forests (LEAF) Thailand-Lowering Emissions in Asia's Forests (LEAF) Jump to: navigation, search Name Thailand-Lowering Emissions in Asia's Forests (LEAF) Agency/Company /Organization United States Agency for International Development Sector Climate, Land Focus Area Biomass, Forestry Topics GHG inventory, Low emission development planning, -LEDS Resource Type Training materials Website http://www.snvworld.org/en/sec Country Thailand South-Eastern Asia References LEAF[1] "Lowering Emissions in Asia's Forests (LEAF), supported by USAID/RDMA, aims to strengthen the capacity of target countries to achieve meaningful and sustained reductions in GHG emissions from the forestry-land use sector while assisting them in benefitting from the emerging international REDD+

403

EA-0941: Lower Yakima Valley Wetlands and Riparian Restoration Project,  

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

41: Lower Yakima Valley Wetlands and Riparian Restoration 41: Lower Yakima Valley Wetlands and Riparian Restoration Project, Washington EA-0941: Lower Yakima Valley Wetlands and Riparian Restoration Project, Washington SUMMARY This EA evaluates the environmental impacts of the proposal for the U.S. Department of Energy's Bonneville Power Administration to fund that portion of the Washington Wildlife Mitigation Agreement pertaining to the Lower Yakima Valley Wetlands and Riparian Restoration Project (Project) in a cooperative effort with the Yakama Indian Nation and the Bureau of Indian Affairs. The proposed action would allow the sponsors to ensure property and conduct wildlife management activities for the Project within the boundaries of the Yakama Indian Reservation. PUBLIC COMMENT OPPORTUNITIES None available at this time.

404

Particle simulation of lower hybrid waves in tokamak plasmas  

E-Print Network (OSTI)

Global particle simulations of the lower hybrid waves have been carried out using fully kinetic ions and drift kinetic electrons with a realistic electron-to-ion mass ratio. The lower hybrid wave frequency, mode structure, and electron Landau damping from the electrostatic simulations agree very well with the analytic theory. Linear simulation of the propagation of a lower hybrid wave-packet in the toroidal geometry shows that the wave propagates faster in the high field side than the low field side, in agreement with a ray tracing calculation. Electromagnetic benchmarks of lower hybrid wave dispersion relation are also carried out. Electromagnetic mode conversion are observed in toroidal geometry, slow waves are launched at the plasma boundary and converts to fast waves at the mode conversion layer, which is consistent with linear theory.

Bao, J; Kuley, A; Wang, Z X; Lu, Z X

2014-01-01T23:59:59.000Z

405

Lower limb response to modified ankle impedance in gait  

E-Print Network (OSTI)

This project used an exoskeletal robot to increase and decrease the stiffness of the ankle joint during treadmill walking to measure the effect of ankle impedance on lower limb joint kinematics. By quantifying the effect ...

Blackburn, Bonnie Lucille

2011-01-01T23:59:59.000Z

406

Sandia National Laboratories: lowering the financial risk associated...  

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

lowering the financial risk associated with geothermal energy production Sandia and Atlas-Copco Secoroc Advance to Phase 2 in Their Geothermal Energy Project On July 31, 2013, in...

407

EV Community Readiness projects: New York City and Lower Hudson...  

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

EV Community Readiness projects: New York City and Lower Hudson Valley Clean Communities, Inc. (NY, MA, PA); NYSERDA (ME, NH, VT, MA, RI, CT, NY, NJ, PA, DE, MD, DC) EV Community...

408

The Iron Spin Transition in the Earth's Lower Mantle  

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

Print It is now known that the iron present in minerals of the lower mantle of the Earth undergoes a pressure-induced transition with pairing of the spins of its 3d electrons....

409

The Iron Spin Transition in the Earth's Lower Mantle  

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

2008 00:00 It is now known that the iron present in minerals of the lower mantle of the Earth undergoes a pressure-induced transition with pairing of the spins of its 3d electrons....

410

Big and Small Ideas: How to Lower Solar Financing Costs  

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

DOE hosted the "Big & Small Ideas: How to Lower Solar Financing Costs" breakout session during the SunShot Grand Challenge Summit and Technology Forum. This session explored a range of...

411

Lower 48 States Coalbed Methane Proved Reserves (Billion Cubic...  

Gasoline and Diesel Fuel Update (EIA)

Proved Reserves (Billion Cubic Feet) Lower 48 States Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

412

Lower 48 States Coalbed Methane Production (Billion Cubic Feet...  

Annual Energy Outlook 2012 (EIA)

Production (Billion Cubic Feet) Lower 48 States Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's...

413

Accurate Detection of Impurities in Hydrogen Fuel at Lower Cost...  

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

Hydrogen and Fuel Cell Hydrogen and Fuel Cell Find More Like This Return to Search Accurate Detection of Impurities in Hydrogen Fuel at Lower Cost Advancing the science of fuel...

414

Lower Cost Carbon Fiber Precursors | Department of Energy  

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

2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting lm004warren2012o.pdf More Documents & Publications Lower...

415

Fuel Cell Tax Incentives: How Monetization Lowers the Government...  

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

Cell Tax Incentives: How Monetization Lowers the Government Outlay By: Lee J. Peterson, Esq. Reznick Group, P.C. February 19, 2009 The Big Picture: Financing with Private Capital...

416

Effect of Syngas Addition on Lower Alkene Production by the Oxidative Cracking of Hexane  

Science Journals Connector (OSTI)

For the COC of C6 with added syngas, the mechanism of exothermic heterogeneous combustion reactions (e.g., H2?O2 catalytic combustion), followed by endothermic homogeneous pyrolysis reaction of C6, is supposed, in which lower alkenes are produced in the gas-phase cracking of C6, using the heat generated from heterogeneously catalytic combustion reactions. ... Both Sn/SiO2 and PtSn/SiO2 seem to be able to selectively combust hydrogen in a gas mixt. ...

Haiou Zhu; Xuebin Liu; Wenzhao Li; Qingjie Ge; Hengyong Xu

2005-04-21T23:59:59.000Z

417

Hydrogen Generation From Electrolysis  

SciTech Connect

Small-scale (100-500 kg H2/day) electrolysis is an important step in increasing the use of hydrogen as fuel. Until there is a large population of hydrogen fueled vehicles, the smaller production systems will be the most cost-effective. Performing conceptual designs and analyses in this size range enables identification of issues and/or opportunities for improvement in approach on the path to 1500 kg H2/day and larger systems. The objectives of this program are to establish the possible pathways to cost effective larger Proton Exchange Membrane (PEM) water electrolysis systems and to identify areas where future research and development efforts have the opportunity for the greatest impact in terms of capital cost reduction and efficiency improvements. System design and analysis was conducted to determine the overall electrolysis system component architecture and develop a life cycle cost estimate. A design trade study identified subsystem components and configurations based on the trade-offs between system efficiency, cost and lifetime. Laboratory testing of components was conducted to optimize performance and decrease cost, and this data was used as input to modeling of system performance and cost. PEM electrolysis has historically been burdened by high capital costs and lower efficiency than required for large-scale hydrogen production. This was known going into the program and solutions to these issues were the focus of the work. The program provided insights to significant cost reduction and efficiency improvement opportunities for PEM electrolysis. The work performed revealed many improvement ideas that when utilized together can make significant progress towards the technical and cost targets of the DOE program. The cell stack capital cost requires reduction to approximately 25% of todays technology. The pathway to achieve this is through part count reduction, use of thinner membranes, and catalyst loading reduction. Large-scale power supplies are available today that perform in a range of efficiencies, >95%, that are suitable for the overall operational goals. The balance of plant scales well both operationally and in terms of cost becoming a smaller portion of the overall cost equation as the systems get larger. Capital cost reduction of the cell stack power supplies is achievable by modifying the system configuration to have the cell stacks in electrical series driving up the DC bus voltage, thereby allowing the use of large-scale DC power supply technologies. The single power supply approach reduces cost. Elements of the cell stack cost reduction and efficiency improvement work performed in the early stage of the program is being continued in subsequent DOE sponsored programs and through internal investment by Proton. The results of the trade study of the 100 kg H2/day system have established a conceptual platform for design and development of a next generation electrolyzer for Proton. The advancements started by this program have the possibility of being realized in systems for the developing fueling markets in 2010 period.

Steven Cohen; Stephen Porter; Oscar Chow; David Henderson

2009-03-06T23:59:59.000Z

418

Market Designs for High Levels of Variable Generation: Preprint  

SciTech Connect

Variable renewable generation is increasing in penetration in modern power systems, leading to higher variability in the supply and price of electricity as well as lower average spot prices. This raises new challenges, particularly in ensuring sufficient capacity and flexibility from conventional technologies. Because the fixed costs and lifetimes of electricity generation investments are significant, designing markets and regulations that ensure the efficient integration of renewable generation is a significant challenge. This papers reviews the state of play of market designs for high levels of variable generation in the United States and Europe and considers new developments in both regions.

Milligan, M.; Holttinen, H.; Kiviluoma, J.; Orths, A.; Lynch, M.; Soder, L.

2014-10-01T23:59:59.000Z

419

CUBIT mesh generation environment. Volume 1: Users manual  

SciTech Connect

The CUBIT mesh generation environment is a two- and three-dimensional finite element mesh generation tool which is being developed to pursue the goal of robust and unattended mesh generation--effectively automating the generation of quadrilateral and hexahedral elements. It is a solid-modeler based preprocessor that meshes volume and surface solid models for finite element analysis. A combination of techniques including paving, mapping, sweeping, and various other algorithms being developed are available for discretizing the geometry into a finite element mesh. CUBIT also features boundary layer meshing specifically designed for fluid flow problems. Boundary conditions can be applied to the mesh through the geometry and appropriate files for analysis generated. CUBIT is specifically designed to reduce the time required to create all-quadrilateral and all-hexahedral meshes. This manual is designed to serve as a reference and guide to creating finite element models in the CUBIT environment.

Blacker, T.D.; Bohnhoff, W.J.; Edwards, T.L. [and others

1994-05-01T23:59:59.000Z

420

Self-consistent full wave simulations of lower hybrid waves  

E-Print Network (OSTI)

Self-consistent full wave simulations of lower hybrid waves John C. Wright P. T. Bonoli - MIT E .J for Simulation of Wave-Plasma Interactions L.A. Berry, D.B. Batchelor, E.F. Jaeger, E. D`Azevedo D. Green C. Milanesio #12;3 Outline · Introduction to Lower Hybrid waves · Modeling LH waves ­ Ray tracing ­ Full Wave

Wright, John C.

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Shaft generator transmissions  

SciTech Connect

Economical on-board power can be generated from two-stroke, low-speed engines by installing a multistage hollow-shaft gearbox on the propeller intermediate shaft to drive the generator. Gearbox manufacturer Asug, based in Dessau, Germany, has designed units specifically for this purpose. The Asug shaft generator drive concept for generator drives at the front end of the engine is designed to reduce installation costs and uses an integrated engine-gearbox foundation. The complete propulsion system, consisting of the diesel engine, gear with coupling and generator, can be completely or partially preassembled outside the ship`s engine room to reduce onboard assembly time. A separate foundation for this arrangement is not necessary. The company offers a full range of gearboxes to generate power from 500 kW up to 5000 kW. Gearboxes driven from the forward engine end often incorporate an additional gear stage to gain energy from an exhaust turbine. This arrangement feeds part of the exhaust energy back into the system to increase efficiency. Latest installations of Asug shaft generator gears are in container ships and cargo/container ships built in Turkey and China.

NONE

1995-11-01T23:59:59.000Z

422

A Mobile Motion Analysis System Using Intertial Sensors for Analysis of Lower Limb Prosthetics  

SciTech Connect

Soldiers returning from the global war on terror requiring lower leg prosthetics generally have different concerns and requirements than the typical lower leg amputee. These subjects are usually young, wish to remain active and often desire to return to active military duty. As such, they demand higher performance from their prosthetics, but are at risk for chronic injury and joint conditions in their unaffected limb. Motion analysis is a valuable tool in assessing the performance of new and existing prosthetic technologies as well as the methods in fitting these devices to both maximize performance and minimize risk of injury for the individual soldier. We are developing a mobile, low-cost motion analysis system using inertial measurement units (IMUs) and two custom force sensors that detect ground reaction forces and moments on both the unaffected limb and prosthesis. IMUs were tested on a robot programmed to simulate human gait motion. An algorithm which uses a kinematic model of the robot and an extended Kalman filter (EKF) was used to convert the rates and accelerations from the gyro and accelerometer into joint angles. Compared to encoder data from the robot, which was considered the ground truth in this experiment, the inertial measurement system had a RMSE of <1.0 degree. Collecting kinematic and kinetic data without the restrictions and expense of a motion analysis lab could help researchers, designers and prosthetists advance prosthesis technology and customize devices for individuals. Ultimately, these improvements will result in better prosthetic performance for the military population.

Mueller, John Kyle P [ORNL] [ORNL; Ericson, Milton Nance [ORNL] [ORNL; Farquhar, Ethan [ORNL] [ORNL; Lind, Randall F [ORNL] [ORNL; Evans III, Boyd Mccutchen [ORNL] [ORNL

2011-01-01T23:59:59.000Z

423

Kinetic Parameters Estimation in the Polymerase Chain Reaction Process Using the Genetic Algorithm  

Science Journals Connector (OSTI)

The population is generated randomly and covers the entire range of possible solutions. ... steps were applied to predict the catalyst surface coverage and the bulk concn. ... RESULTS: Using the Genetic Algorithm to find the sub-optimal solution to the optimization problem, we have estimated a set of unknown parameters describing a kinetic model of a signaling pathway in the neuronal cell. ...

Lanting Li; Chao Wang; Bo Song; Lijuan Mi; Jun Hu

2012-09-13T23:59:59.000Z

424

A Robust Clustering Algorithm for Mobile Ad Hoc Networks Zhaowen Xing  

E-Print Network (OSTI)

cooperative infrastructures. Thus, each node operates as an autonomous end system and a router for others + (603) 7967-6367 Email: kkphang@um.edu.my Chapter submitted to Handbook of Research on Next Generation Clustering Algorithm for Mobile Ad Hoc Networks ABSTRACT To mimic the operations in fixed infrastructures

Gruenwald, Le

425

Sample-based collection and adjustment algorithm for metadata extraction parameter of flexible format document  

Science Journals Connector (OSTI)

We propose an algorithm for automatically generating metadata extraction parameters. It first enumerates candidates on the basis of metadata occurrence in training documents, and then examines these candidates to avoid side effects and to maximize effectiveness. ... Keywords: keyword extraction, layout characteristics, logical structure analysis, metadata extraction

Toshiko Matsumoto; Mitsuharu Oba; Takashi Onoyama

2010-06-01T23:59:59.000Z

426

Trajectory Optimization of Spray Painting Robot Based on Adapted Genetic Algorithm  

Science Journals Connector (OSTI)

Due to the complex geometry of free-form surfaces, generating optimization trajectories of spray gun to satisfy paint uniformity requirement is still a challenge. A quadratic function of the paint deposition rate on a plane was proposed according to ... Keywords: trajectory optimization, spray painting robot, genetic algorithm

Fa-zhong Li; De-an Zhao; Gui-hua Xie

2009-04-01T23:59:59.000Z

427

Optimization of wind turbine energy and power factor with an evolutionary computation algorithm  

E-Print Network (OSTI)

Optimization of wind turbine energy and power factor with an evolutionary computation algorithm the energy capture from the wind and enhance the quality of the power produced by the wind turbine, and harmonic distortion. As the generation of wind energy on an industrial scale is relatively new, the area

Kusiak, Andrew

428

Coupling between the University of California, Davis, Advanced CanopyAtmosphereSoil Algorithm (ACASA) and MM5: Preliminary Results for July 1998 for Western North America  

Science Journals Connector (OSTI)

The University of California, Davis, Advanced CanopyAtmosphereSoil Algorithm (ACASA) is coupled to the fifth-generation Pennsylvania State UniversityNational Center for Atmospheric Research (NCAR) Mesoscale Model (MM5) as a land surface ...

R. David Pyles; Bryan C. Weare; Kyaw Tha Paw U; William Gustafson

2003-05-01T23:59:59.000Z

429

generating | OpenEI  

Open Energy Info (EERE)

generating generating Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 9, and contains only the reference case. The dataset uses gigawatts. The data is broken down into power only, combined heat and power, cumulative planned additions, cumulative unplanned conditions, and cumulative retirements and total electric power sector capacity . Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO capacity consumption EIA Electricity generating Data application/vnd.ms-excel icon AEO2011: Electricity Generating Capacity- Reference Case (xls, 130.1 KiB) Quality Metrics Level of Review Peer Reviewed Comment

430

Scram signal generator  

DOE Patents (OSTI)

A scram signal generating circuit for nuclear reactor installations monitors a flow signal representing the flow rate of the liquid sodium coolant which is circulated through the reactor, and initiates reactor shutdown for a rapid variation in the flow signal, indicative of fuel motion. The scram signal generating circuit includes a long-term drift compensation circuit which processes the flow signal and generates an output signal representing the flow rate of the coolant. The output signal remains substantially unchanged for small variations in the flow signal, attributable to long term drift in the flow rate, but a rapid change in the flow signal, indicative of a fast flow variation, causes a corresponding change in the output signal. A comparator circuit compares the output signal with a reference signal, representing a given percentage of the steady state flow rate of the coolant, and generates a scram signal to initiate reactor shutdown when the output signal equals the reference signal.

Johanson, Edward W. (New Lenox, IL); Simms, Richard (Westmont, IL)

1981-01-01T23:59:59.000Z

431

CONSULTANT REPORT DISTRIBUTED GENERATION  

E-Print Network (OSTI)

Energy Jobs Plan, Governor Brown established a 2020 goal of 12,000 megawatts of localized renewable energy development, or distributed generation, in California. In May 2012, Southern California Edison, renewables, interconnection, integration, electricity, distribution, transmission, costs. Please use

432

A Geothermic Generating Plant  

Science Journals Connector (OSTI)

... energy is generated in the turbo-alternators at 25,000 volts and transmitted to the substations along the ViareggioRome railway, where it is converted to 3,000 volts direct ...

1939-10-28T23:59:59.000Z

433

MC generators in CHORUS  

E-Print Network (OSTI)

This note presents an overview of general-purpose and specific Monte-Carlo event generators used in the simulation of the CERN - CHORUS experiment, aiming to search for $\

I. Tsukerman

2002-02-27T23:59:59.000Z

434

Topographically Generated Cloud Plumes  

Science Journals Connector (OSTI)

Two topographically generated cirrus plume events have been examined through satellite observations and real-data simulations. On 30 October 2002, an approximately 70-km-wide cirrus plume, revealed by a high-resolution Moderate Resolution Imaging ...

Qingfang Jiang; James D. Doyle

2006-08-01T23:59:59.000Z

435

Energy and Mass Generation  

E-Print Network (OSTI)

Modifications in the energy momentum dispersion laws due to a noncommutative geometry, have been considered in recent years. We examine the oscillations of extended objects in this perspective and find that there is now a "generation" of energy.

Burra G. Sidharth

2010-03-11T23:59:59.000Z

436

Generating electricity from viruses  

ScienceCinema (OSTI)

Berkeley Lab's Seung-Wuk Lee discusses "Generating electricity from viruses" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas.

Lee, Seung-Wuk

2014-06-23T23:59:59.000Z

437

Generating electricity from viruses  

SciTech Connect

Berkeley Lab's Seung-Wuk Lee discusses "Generating electricity from viruses" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas.

Lee, Seung-Wuk

2013-10-31T23:59:59.000Z

438

Oscillating fluid power generator  

SciTech Connect

A system and method for harvesting the kinetic energy of a fluid flow for power generation with a vertically oriented, aerodynamic wing structure comprising one or more airfoil elements pivotably attached to a mast. When activated by the moving fluid stream, the wing structure oscillates back and forth, generating lift first in one direction then in the opposite direction. This oscillating movement is converted to unidirectional rotational movement in order to provide motive power to an electricity generator. Unlike other oscillating devices, this device is designed to harvest the maximum aerodynamic lift forces available for a given oscillation cycle. Because the system is not subjected to the same intense forces and stresses as turbine systems, it can be constructed less expensively, reducing the cost of electricity generation. The system can be grouped in more compact clusters, be less evident in the landscape, and present reduced risk to avian species.

Morris, David C

2014-02-25T23:59:59.000Z

439

Vector generator scan converter  

DOE Patents (OSTI)

High printing speeds for graphics data are achieved with a laser printer by transmitting compressed graphics data from a main processor over an I/O channel to a vector generator scan converter which reconstructs a full graphics image for input to the laser printer through a raster data input port. The vector generator scan converter includes a microprocessor with associated microcode memory containing a microcode instruction set, a working memory for storing compressed data, vector generator hardware for drawing a full graphic image from vector parameters calculated by the microprocessor, image buffer memory for storing the reconstructed graphics image and an output scanner for reading the graphics image data and inputting the data to the printer. The vector generator scan converter eliminates the bottleneck created by the I/O channel for transmitting graphics data from the main processor to the laser printer, and increases printer speed up to thirty fold. 7 figs.

Moore, J.M.; Leighton, J.F.

1988-02-05T23:59:59.000Z

440

Generation -IV Reactor Concepts  

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

Generation-IV Reactor Concepts Generation-IV Reactor Concepts Thomas H. Fanning Argonne National Laboratory 9700 South Cass Avenue Argonne, Illinois 60439, USA The Generation-IV International Forum (GIF) is a multi-national research and development (R&D) collaboration. The GIF pursues the development of advanced, next generation reactor technology with goals to improve: a) sustainability (effective fuel utilization and minimization of waste) b) economics (competitiveness with respect to other energy sources) c) safety and reliability (e.g., no need for offsite emergency response), and d) proliferation resistance and physical protection The GIF Technology Roadmap exercise selected six generic systems for further study: the Gas- cooled Fast Reactor (GFR), the Lead-cooled Fast Reactor (LFR), the Molten Salt Reactor (MSR),

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Parametric light generation  

Science Journals Connector (OSTI)

...potential to deliver coherent light with high spectral purity...universal constants such as the speed of light. Single- frequency CW...assessment of optical switching speeds in telecommunication technology...A (2003) Parametric light generation 2749 ment of...

2003-01-01T23:59:59.000Z

442

Good covers are algorithmically unrecognizable  

E-Print Network (OSTI)

A good cover in R^d is a collection of open contractible sets in R^d such that the intersection of any subcollection is either contractible or empty. Motivated by an analogy with convex sets, intersection patterns of good covers were studied intensively. Our main result is that intersection patterns of good covers are algorithmically unrecognizable. More precisely, the intersection pattern of a good cover can be stored in a simplicial complex called nerve which records which subfamilies of the good cover intersect. A simplicial complex is topologically d-representable if it is isomorphic to the nerve of a good cover in R^d. We prove that it is algorithmically undecidable whether a given simplicial complex is topologically d-representable for any fixed d \\geq 5. As an auxiliary result we prove that if a simplicial complex is PL embeddable into R^d, then it is topologically d-representable. We also supply this result with showing that if a "sufficiently fine" subdivision of a k-dimensional complex is d-represen...

Tancer, Martin

2012-01-01T23:59:59.000Z

443

Enhanced algorithms for stochastic programming  

SciTech Connect

In this dissertation, we present some of the recent advances made in solving two-stage stochastic linear programming problems of large size and complexity. Decomposition and sampling are two fundamental components of techniques to solve stochastic optimization problems. We describe improvements to the current techniques in both these areas. We studied different ways of using importance sampling techniques in the context of Stochastic programming, by varying the choice of approximation functions used in this method. We have concluded that approximating the recourse function by a computationally inexpensive piecewise-linear function is highly efficient. This reduced the problem from finding the mean of a computationally expensive functions to finding that of a computationally inexpensive function. Then we implemented various variance reduction techniques to estimate the mean of a piecewise-linear function. This method achieved similar variance reductions in orders of magnitude less time than, when we directly applied variance-reduction techniques directly on the given problem. In solving a stochastic linear program, the expected value problem is usually solved before a stochastic solution and also to speed-up the algorithm by making use of the information obtained from the solution of the expected value problem. We have devised a new decomposition scheme to improve the convergence of this algorithm.

Krishna, A.S.

1993-09-01T23:59:59.000Z

444

A Faster Algorithm for Computing Motorcycle Graphs  

Science Journals Connector (OSTI)

We present a new algorithm for computing motorcycle graphs that runs in $$O(n^{4/3+\\varepsilon })$$O(n4/3+) time for any $$\\varepsilon >0$$>0, improving on all previously known algorithms. The main application of this result is to computing the straight ... Keywords: 65D18, 68Q25, 68U05, Algorithms design and analysis, Medial axis, Motorcycle graph, Polygon, Straight skeleton

Antoine Vigneron, Lie Yan

2014-10-01T23:59:59.000Z

445

New Monte Carlo Algorithm for Protein Folding  

Science Journals Connector (OSTI)

We demonstrate that the recently introduced pruned-enriched Rosenbluth method leads to extremely efficient algorithms for the folding of simple model proteins. We test them on several models for lattice heteropolymers, and compare the results to published Monte Carlo studies. In all cases our algorithms are faster than previous ones, and in several cases we find new minimal energy states. In addition, our algorithms give estimates for the partition sum at finite temperatures.

Helge Frauenkron; Ugo Bastolla; Erwin Gerstner; Peter Grassberger; Walter Nadler

1998-04-06T23:59:59.000Z

446

MEMORANDUM OF UNDERSTANDING Between The Numerical Algorithms...  

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

Numerical Algorithms Group Ltd (NAG) with a registered address at: Wilkinson House, Jordan hill Road, Oxford, UK and the University of California, as Management and Operating...

447

Comprehensive Study of Image Restoration Algorithms.  

E-Print Network (OSTI)

??Abstract Comprehensive Study of Image Restoration Algorithms By Lize Zong Master of Science in Electrical Engineering Image restoration is an important part of digital image-processing. (more)

Zong, Lize

2015-01-01T23:59:59.000Z

448

Fast Algorithms for the Minimum Volume Estimator  

E-Print Network (OSTI)

Abstract: The MVE estimator is an important tool in robust regression and outlier detection in statistics. We develop fast and efficient algorithms for the MVE...

S D Ahipasaoglu

449

Protein Folding: Generalized-Ensemble Algorithms  

Science Journals Connector (OSTI)

We briefly review the development of generalized-ensemble optimization techniques and their application since publication of Protein Folding: Generalized-Ensemble Algorithms was published in...

Ulrich H. E. Hansmann

2009-01-01T23:59:59.000Z

450

AN AUGMENTED LAGRANGIAN BASED ALGORITHM FOR ...  

E-Print Network (OSTI)

Let the functions fi and hi be twice continuously differentiable with the fis being strictly convex and the his being convex. If Algorithm 2 is based on constraint...

2014-07-03T23:59:59.000Z

451

Accelerated and Inexact forward-backward algorithms  

E-Print Network (OSTI)

Aug 17, 2011 ... Accelerated and Inexact forward-backward algorithms. Silvia Villa (villa ***at*** dima.unige.it) Saverio Salzo (salzo ***at*** disi.unige.it)

Silvia Villa

2011-08-17T23:59:59.000Z

452

Parallel GPU Algorithms for Mechanical CAD  

E-Print Network (OSTI)

of California, Berkeley, Mechanical Engineering Department,GPU Algorithms for Mechanical CAD by Adarsh Krishnamurthy Aof Philosophy in Engineering - Mechanical Engineering in the

Krishnamurthy, Adarsh

2010-01-01T23:59:59.000Z

453

Algorithmic Cooling in Liquid State NMR  

E-Print Network (OSTI)

Algorithmic cooling is a method that employs thermalization to increase the qubits' purification level, namely it reduces the qubit-system's entropy. We utilized gradient ascent pulse engineering (GRAPE), an optimal control algorithm, to implement algorithmic cooling in liquid state nuclear magnetic resonance. Various cooling algorithms were applied onto the three qubits of 13C2-trichloroethylene, cooling the system beyond Shannon's entropy bound in several different ways. For example, in one experiment a carbon qubit was cooled by a factor of 4.61. This work is a step towards potentially integrating tools of NMR quantum computing into in vivo magnetic resonance spectroscopy.

Yosi Atia; Yuval Elias; Tal Mor; Yossi Weinstein

2014-11-17T23:59:59.000Z

454

Upping Efficiency Standards, Lowering Utility Bills | Department of Energy  

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

Upping Efficiency Standards, Lowering Utility Bills Upping Efficiency Standards, Lowering Utility Bills Upping Efficiency Standards, Lowering Utility Bills September 2, 2010 - 4:17pm Addthis Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What does this mean for me? Using energy-efficient appliances is one of the easiest and most important ways consumers have to save money. Purchasing energy-efficient appliances is one of the easiest and most important ways consumers have to save money, reduce their electricity consumption and help cut down on carbon pollution. We use appliances every day - to cook our food, cool our homes, heat our water and clean our clothes. In fact, for a typical U.S. family, heating and cooling and water heating account for about 50 percent of utility bills. Home appliances and

455

Less platinum means lower prices for autos | Department of Energy  

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

Less platinum means lower prices for autos Less platinum means lower prices for autos Less platinum means lower prices for autos January 21, 2010 - 3:29pm Addthis Joshua DeLung You might wear a platinum wedding band, but tucked away in the guts of a car probably isn't where Americans prefer this pricey, precious metallic element to be. Luckily, researchers at 3M's Fuel Cell Component's Program in St. Paul, Minnesota have us covered. 3M has developed technology that will reduce the amount of platinum necessary in a fuel cell system by using nano-catalyst particles that actually make surface atoms more efficient at producing energy. Platinum is needed in fuel cells because no other metals are even close to being as effective at speeding up chemical reactions to make power. 3M is among a handful of fuel cell system suppliers in the U.S., and these advancements

456

Maryland Small Business Helping Lower Solar Costs | Department of Energy  

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

Maryland Small Business Helping Lower Solar Costs Maryland Small Business Helping Lower Solar Costs Maryland Small Business Helping Lower Solar Costs January 12, 2010 - 9:14am Addthis Joshua DeLung One potential problem with going solar across America is that the up-front costs of installing solar panels are often too high for the average consumer. Though panels can produce mounds of energy savings over a long period of time, the expense of installation is still too high for many. However, stimulus funding awarded to a small, Maryland-based business with six employees - AccuStrata Inc. - by the U.S. Department of Energy under the Recovery Act is helping the company develop technology to eliminate such barriers. AccuStrata was awarded its third Small Business Innovation Research grant of $150,000 in December. These grants will help the company increase the

457

Lower Colorado River Authority LCRA | Open Energy Information  

Open Energy Info (EERE)

Lower Colorado River Authority LCRA Lower Colorado River Authority LCRA Jump to: navigation, search Name Lower Colorado River Authority (LCRA) Place Austin, Texas Zip 78703 Product LCRA is a conservation and reclamation district created by the Texas Legislature in 1934. Coordinates 30.267605°, -97.742984° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":30.267605,"lon":-97.742984,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

458

Navy Lowering Upfront Costs to Save Energy | Department of Energy  

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

Navy Lowering Upfront Costs to Save Energy Navy Lowering Upfront Costs to Save Energy Navy Lowering Upfront Costs to Save Energy June 21, 2010 - 11:23am Addthis This hangar at Naval Air Station Meridian in Mississippi received an energy-efficiency makeover that included major lighting retrofits and water conservation measures. | Photo Courtesy U.S. Navy This hangar at Naval Air Station Meridian in Mississippi received an energy-efficiency makeover that included major lighting retrofits and water conservation measures. | Photo Courtesy U.S. Navy Joshua DeLung What does this mean for me? 2 mechanical project upgrades, 16 lighting project upgrades and 19 water conservation measures $267,565 in taxpayer money saved annually 3.1 million gallons of water saved annuallym 1,889 MWh of electricity saved annually and 56,118 therms natural gas saved annually

459

Savings Project: Lower Water Heating Temperature | Department of Energy  

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

Savings Project: Lower Water Heating Temperature Savings Project: Lower Water Heating Temperature Savings Project: Lower Water Heating Temperature Addthis Project Level Easy Energy Savings $12-$30 annually for each 10ºF reduction Time to Complete 2 hours Overall Cost $0 Turning down your water heater temperature can save energy and money. | Photo courtesy of iStockphoto.com/BanksPhotos Turning down your water heater temperature can save energy and money. | Photo courtesy of iStockphoto.com/BanksPhotos Although some manufacturers set water heater thermostats at 140ºF, most households usually only require them to be set at 120ºF, which also slows mineral buildup and corrosion in your water heater and pipes. Water heated at 140ºF also poses a safety hazard-scalding. Savings resulting from turning down your water heater temperature are based

460

EM's Strategic Planning Initiative Examines Impact of Lower Funding Targets  

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

EM's Strategic Planning Initiative Examines Impact of Lower Funding EM's Strategic Planning Initiative Examines Impact of Lower Funding Targets EM's Strategic Planning Initiative Examines Impact of Lower Funding Targets February 1, 2012 - 12:00pm Addthis WASHINGTON, D.C. - EM is conducting a strategic planning effort that aims to optimize progress in the organization's environmental cleanup program. As part of efforts to continuously improve the effectiveness and efficiency of resource management and build on the success of the $6 billion EM American Recovery and Reinvestment Act Program, EM headquarters officials are working with staff at EM's 17 field sites to analyze the impact of austere funding projections on project costs and schedules. EM is working to align the cleanup program with current budget realities and prioritize

Note: This page contains sample records for the topic "algorithms lowering generating" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Microsoft Word - Central Ferry-Lower Monumental ROD.doc  

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

1 1 Record of Decision March 2011 Bonneville Power Administration's Central Ferry-Lower Monumental 500-kilovolt Transmission Line Project Record of Decision March 2011 Decision The Bonneville Power Administration (BPA) has decided to construct the proposed Central Ferry-Lower Monumental 500-kilovolt (kV) Transmission Line Project in Garfield, Columbia, and Walla Walla counties, Washington. BPA has decided to implement the Combination A Alternative identified in the Central Ferry-Lower Monumental 500-kV Transmission Line Project Final Environmental Impact Statement (DOE/EIS-0422, February 2011). The Combination A Alternative consists of constructing a new 500-kV transmission line from BPA's new Central Ferry Substation near the Port of Central Ferry in Garfield County generally west

462

EM's Strategic Planning Initiative Examines Impact of Lower Funding Targets  

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

EM's Strategic Planning Initiative Examines Impact of Lower Funding EM's Strategic Planning Initiative Examines Impact of Lower Funding Targets EM's Strategic Planning Initiative Examines Impact of Lower Funding Targets February 1, 2012 - 12:00pm Addthis WASHINGTON, D.C. - EM is conducting a strategic planning effort that aims to optimize progress in the organization's environmental cleanup program. As part of efforts to continuously improve the effectiveness and efficiency of resource management and build on the success of the $6 billion EM American Recovery and Reinvestment Act Program, EM headquarters officials are working with staff at EM's 17 field sites to analyze the impact of austere funding projections on project costs and schedules. EM is working to align the cleanup program with current budget realities and prioritize

463

Upping Efficiency Standards, Lowering Utility Bills | Department of Energy  

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

Upping Efficiency Standards, Lowering Utility Bills Upping Efficiency Standards, Lowering Utility Bills Upping Efficiency Standards, Lowering Utility Bills September 2, 2010 - 4:17pm Addthis Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What does this mean for me? Using energy-efficient appliances is one of the easiest and most important ways consumers have to save money. Purchasing energy-efficient appliances is one of the easiest and most important ways consumers have to save money, reduce their electricity consumption and help cut down on carbon pollution. We use appliances every day - to cook our food, cool our homes, heat our water and clean our clothes. In fact, for a typical U.S. family, heating and cooling and water heating account for about 50 percent of utility bills. Home appliances and

464

Maryland Small Business Helping Lower Solar Costs | Department of Energy  

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

Small Business Helping Lower Solar Costs Small Business Helping Lower Solar Costs Maryland Small Business Helping Lower Solar Costs January 12, 2010 - 9:14am Addthis Joshua DeLung One potential problem with going solar across America is that the up-front costs of installing solar panels are often too high for the average consumer. Though panels can produce mounds of energy savings over a long period of time, the expense of installation is still too high for many. However, stimulus funding awarded to a small, Maryland-based business with six employees - AccuStrata Inc. - by the U.S. Department of Energy under the Recovery Act is helping the company develop technology to eliminate such barriers. AccuStrata was awarded its third Small Business Innovation Research grant of $150,000 in December. These grants will help the company increase the

465

Waste Shipment Tracking Technology Lowers Costs, Increases Efficiency |  

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

Shipment Tracking Technology Lowers Costs, Increases Shipment Tracking Technology Lowers Costs, Increases Efficiency Waste Shipment Tracking Technology Lowers Costs, Increases Efficiency February 27, 2013 - 12:00pm Addthis This graphic shows how the radiofrequency identification technology tracks and monitors packages in transport, in-transit stops and storage. This graphic shows how the radiofrequency identification technology tracks and monitors packages in transport, in-transit stops and storage. The technology developed by EM’s Office of Packaging and Transportation Packaging Certification Program technology development team was selected by the RFID Journal as the "Most Innovated Use of RFIDs.” Team members pictured here include Dr. John Lee, Dr. Yung Liu, Dr. Jim Shuler, Dr. Hanchung Tsai and John Anderson. Team members not pictured are Brian Craig and Dr. Kun Chen.

466

SRS Recovery Act Completes Major Lower Three Runs Project Cleanup  

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

August 14, 2012 August 14, 2012 AIKEN, S.C. - American Recovery and Reinvestment Act can now claim that 85 percent of the Savannah River Site (SRS) has been cleaned up with the recent completion of the Lower Three Runs (stream) Project. Twenty miles long, Lower Three Runs leaves the main body of the 310-square mile site and runs through parts of Barnwell and Allendale Coun- ties until it flows into the Savannah River. Government property on both sides of the stream acts as a buffer as it runs through privately-owned property. Completing this project reduces the site's footprint by another 10 percent. "We excavated and disposed of over five million pounds of contaminated soil from three specific sites along the stream, erected miles of fence and placed over 2,000 signs in order to make Lower Three Runs safe and to reduce our site's footprint by another 10 percent," said Chris

467

Savings Project: Lower Water Heating Temperature | Department of Energy  

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

Lower Water Heating Temperature Lower Water Heating Temperature Savings Project: Lower Water Heating Temperature Addthis Project Level Easy Energy Savings $12-$30 annually for each 10ºF reduction Time to Complete 2 hours Overall Cost $0 Turning down your water heater temperature can save energy and money. | Photo courtesy of iStockphoto.com/BanksPhotos Turning down your water heater temperature can save energy and money. | Photo courtesy of iStockphoto.com/BanksPhotos Although some manufacturers set water heater thermostats at 140ºF, most households usually only require them to be set at 120ºF, which also slows mineral buildup and corrosion in your water heater and pipes. Water heated at 140ºF also poses a safety hazard-scalding. Savings resulting from turning down your water heater temperature are based

468

The spectral-timing properties of upper and lower kHz QPOs  

E-Print Network (OSTI)

Soft lags from the emission of the lower kilohertz quasi-periodic oscillations (kHz QPOs) of neutron star low mass X-ray binaries have been reported from 4U1608-522 and 4U1636-536. Those lags hold prospects for constraining the origin of the QPO emission, including the location at which the oscillation takes place, a stepping stone before we can use the kHz QPOs to probe strong field General Relativity. In this paper, we investigate the spectral-timing properties of both the lower and upper kHz QPOs from the neutron star binary 4U1728-34, in which the duty cycles of both QPOs are comparable, using the entire Rossi X-ray Timing Explorer archive on this source. We show that the lag-energy spectra of the two QPOs are systematically different: while the lower kHz QPO shows soft lags, the upper kHz QPO shows either a flat lag-energy spectrum or hard variations lagging softer variations. This suggests two different QPO-generation mechanisms. We also computed the first covariance spectra for both kHz QPOs and perfor...

Peille, Philippe; Uttley, Phil

2015-01-01T23:59:59.000Z

469

Tax Exemption for Wind Energy Generation | Department of Energy  

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

Tax Exemption for Wind Energy Generation Tax Exemption for Wind Energy Generation Tax Exemption for Wind Energy Generation < Back Eligibility Utility Savings Category Wind Buying & Making Electricity Program Info Start Date 7/2001 State West Virginia Program Type Corporate Exemption Rebate Amount Reduction of Business and Occupations (BandO) tax from 40% to 12% of generating capacity Provider West Virginia Division of Energy In March 2007, West Virginia enacted legislation ([http://www.legis.state.wv.us/Bill_Text_HTML/2007_SESSIONS/RS/BILLS/sb441... SB 441]) amending its tax law concerning the business and operation (B&O) tax for wind turbines. Although SB 441 increased the taxable value of wind turbine generating capacity, the taxation level is still significantly lower than that of most other types of electricity generation. For most

470

Superconducting thermoelectric generator  

DOE Patents (OSTI)

Thermoelectricity is produced by applying a temperature differential to dissimilar electrically conducting or semiconducting materials, thereby producing a voltage that is proportional to the temperature difference. Thermoelectric generators use this effect to directly convert heat into electricity; however, presently-known generators have low efficiencies due to the production of high currents which in turn cause large resistive heating losses. Some thermoelectric generators operate at efficiencies between 4% and 7% in the 800{degrees} to 1200{degrees}C range. According to its major aspects and bradly stated, the present invention is an apparatus and method for producing electricity from heat. In particular, the invention is a thermoelectric generator that juxtaposes a superconducting material and a semiconducting material - so that the superconducting and the semiconducting materials touch - to convert heat energy into electrical energy without resistive losses in the temperature range below the critical temperature of the superconducting material. Preferably, an array of superconducting material is encased in one of several possible configurations within a second material having a high thermal conductivity, preferably a semiconductor, to form a thermoelectric generator.

Metzger, J.D.; El-Genk, M.S.

1994-01-01T23:59:59.000Z

471

Real-time estimation of gas turbine engine damage using a control-based Kalman filter algorithm  

SciTech Connect

In this paper a second-generation Kalman filter algorithm is described that has sufficient accuracy and response for real-time detection and estimation of gas turbine engine gas path damage caused by normal wear, mechanical failures, and ingestion of foreign objects. The algorithm was developed for in-flight operation of aircraft engines but also has application for marine and industrial gas turbines. The control measurement and microcomputer requirements are described. The performance and sensitivity to engine transients and measurement errors is evaluated. The algorithm is demonstrated with actual engine data of ice and bird ingestion tests.

Kerr, L.J.; Nemec, T.S.; Gallops, G.W. (Pratt and Whitney, United Technologies Corp., West Palm Beach, FL (US))

1992-04-01T23:59:59.000Z

472

Carbon-free generation  

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

Carbon-free generation Carbon-free generation Carbon-free central generation of electricity, either through fossil fuel combustion with carbon dioxide capture and storage or development of renewable sources such as solar, wind, and/or nuclear power, is key to our future energy portfolio. Brookhaven also provides tools and techniques for studying geological carbon dioxide sequestration and analyzing safety issues for nuclear systems. Our nation faces grand challenges: finding alternative and cleaner energy sources and improving efficiency to meet our exponentially growing energy needs. Researchers at Brookhaven National Laboratory are poised to meet these challenges with basic and applied research programs aimed at advancing the effective use of renewable energy through improved conversion,

473

Information discovery applied to a power generation database  

SciTech Connect

An information discovery system is presented that extracts knowledge from databases in a form that is much more compact and easy to understand than the original set of records. The system was tested with a subset of a real power generation database of the Federal Commission of Electricity in Mexico (CFE = Comision Federal de Electricidad). The paper discusses a machine learning algorithm for induction of rules and the heuristics used to obtain the simplest rules that define the knowledge hidden in a database.

Rodriguez, G.; Hernandez, V. [Electrical Research Inst., Cuernavaca (Mexico). Information Systems Dept.

1996-11-01T23:59:59.000Z

474

Statistical NP Generation: A First Report M. Poesio, R. Henschel, J. Hitzeman, y R. Kibble x  

E-Print Network (OSTI)

). As part of the GNOME project, 1 whose goal is to develop general­purpose NP generation algorithms, we have the decision algorithm. 1 The home page of the project is at http://www.cogsci.ed.ac.uk/ gnome. 1 #12; #15 are a good way of producing such output. (1) a. Jessie M. King, the Liberty artist, was not just a jewelry

Poesio, Massimo

475

Fuel cycle comparison of distributed power generation technologies.  

SciTech Connect

The fuel-cycle energy use and greenhouse gas (GHG) emissions associated with the application of fuel cells to distributed power generation were evaluated and compared with the combustion technologies of microturbines and internal combustion engines, as well as the various technologies associated with grid-electricity generation in the United States and California. The results were primarily impacted by the net electrical efficiency of the power generation technologies and the type of employed fuels. The energy use and GHG emissions associated with the electric power generation represented the majority of the total energy use of the fuel cycle and emissions for all generation pathways. Fuel cell technologies exhibited lower GHG emissions than those associated with the U.S. grid electricity and other combustion technologies. The higher-efficiency fuel cells, such as the solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC), exhibited lower energy requirements than those for combustion generators. The dependence of all natural-gas-based technologies on petroleum oil was lower than that of internal combustion engines using petroleum fuels. Most fuel cell technologies approaching or exceeding the DOE target efficiency of 40% offered significant reduction in energy use and GHG emissions.

Elgowainy, A.; Wang, M. Q.; Energy Systems

2008-12-08T23:59:59.000Z

476

Using Backup Generators: Choosing the Right Backup Generator...  

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

generator's fuel source-Backup generators are typically powered by either diesel fuel or natural gas, and both have associated advantages and disadvantages. Speak with your...

477

Baseline Hydrologic Studies in the Lower Elwha River Prior to  

E-Print Network (OSTI)

After the removal of two large, longstanding dams on the Elwha River, Washington, the additional loadChapter 4 4 Chapter Baseline Hydrologic Studies in the Lower Elwha River Prior to Dam Removal characteristics of the river and estuary before dam removal, several hydrologic data sets were collected

478

Improved lower bound on the entropic uncertainty relation  

SciTech Connect

We present a lower bound on the entropic uncertainty relation for the distinguished measurements of two observables in a d-dimensional Hilbert space for d up to 5. This bound provides an improvement over the best one yet available. The feasibility of the obtained bound presenting an improvement for higher dimensions is also discussed.

Jafarpour, Mojtaba; Sabour, Abbass [Physics Department, Shahid Chamran University, Ahvaz (Iran, Islamic Republic of)

2011-09-15T23:59:59.000Z

479

Lower 48 Federal Offshore Coalbed Methane Proved Reserves (Billion...  

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

Lower 48 Federal Offshore Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 0 0 2010's...

480

Improved lower bound on the entropic uncertainty relation  

Science Journals Connector (OSTI)

We present a lower bound on the entropic uncertainty relation for the distinguished measurements of two observables in a d-dimensional Hilbert space for d up to 5. This bound provides an improvement over the best one yet available. The feasibility of the obtained bound presenting an improvement for higher dimensions is also discussed.

Mojtaba Jafarpour and Abbass Sabour

2011-09-08T23:59:59.000Z

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481

Accessibility for lower hybrid waves in PBX-M  

SciTech Connect

Understanding the wave damping mechanism in the presence of a spectral gap' is an important issue for the current profile control using Lower Hybrid Current Drive (LHCD). The authors examine a traditional explanation based upon upshifting of the wave parallel refractive index (n[sub [parallel

Takahashi, H.; Bell, R.; Bernabei, S.; Chance, M.; Chu, T.K.; Gettelfinger, G.; Greenough, N.; Hatcher, R.; Ignat, D.; Jardin, S.; Kaita, R.; Kaye, S.; Kugel, H.; LeBlanc, B.; Manickam, J.; Okabayashi, M.; Ono, M.; Paul, S.; Perkins, F.; Sauthoff, N.; Sesnic, S.; Sun, Y.; Tighe, W.; Valeo, E.; von Goeler, S. (Princeton Univ., NJ (United States). Plasma Physics Lab.); Batha, S.; Levinton, F. (Fusion Physics and Technology

1993-07-01T23:59:59.000Z

482

Suspended sediment sources and tributary effects in the lower  

E-Print Network (OSTI)

Suspended sediment sources and tributary effects in the lower reaches of a coastal plain stream Abstract Characterizing the dynamics of fluvial sediment sources over space and time is often critical in identifying human impacts on fluvial systems. Upland interfluve and subsoil sources of suspended sediment

Yeager, Kevin M.

483

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan Volume II ­ Subbasin Plan Chapter II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White Salmon Subbasin II.L. Columbia Gorge, status, and limiting factors of other fish and wildlife species of interest to recovery and subbasin

484

Lower Columbia Salmon Recovery Fish & Wildlife Subbasin Plan  

E-Print Network (OSTI)

Lower Columbia Salmon Recovery And Fish & Wildlife Subbasin Plan Volume II ­ Subbasin Plan Chapter Tributaries II.I. Washougal Subbasin II.J. Wind Subbasin II.K. Little White Salmon Subbasin II.L. Columbia Descriptions, status, and limiting factors of other fish and wildlife species of interest to recovery

485

Selfconsistent full wave simulations of lower hybrid waves  

E-Print Network (OSTI)

Selfconsistent full wave simulations of lower hybrid waves John C. Wright P. T. Bonoli MIT E .J. Porkolab Sherwood/Spring APS Denver May 2009 #12; 2 Participants in the Center for Simulation of Wave hybrid (LH) waves have the attractive property of damping strongly via electron Landau resonance

Wright, John C.

486

LOWER TRANSPORT BOUNDS FOR ONE-DIMENSIONAL CONTINUUM SCHRODINGER OPERATORS  

E-Print Network (OSTI)

, Germany, E-Mail: dlenz@mathematik.tu-chemnitz.de 3 Department of Mathematics, University of Alabama x |V (t)| dt well. DAMANIK, D. LENZ, G. STOLZ (lower diffusion exponents) (4) - f (p) := lim inf T log Mf (T, p) log

487

Lower Oil Prices: A Reason to Give Thanks GENE EPSTEIN  

E-Print Network (OSTI)

Lower Oil Prices: A Reason to Give Thanks By GENE EPSTEIN Nov. 29, 2014 1:31 a.m. ET I give thanks thanks for an oil price that fell below $70 a barrel Friday, mainly because it bodes well for general early this year ("Here Comes $75 Oil," March 31). Amy Jaffe, executive director of energy

California at Davis, University of

488

Fuzzy logic control strategy of wind generator based on the dual-stator induction generator  

Science Journals Connector (OSTI)

Abstract The work presented in this paper is the evaluation of the variable speed wind turbine based on dual star induction generator (DSIG) connected for power optimization in the conversion chain connected to the electrical grid. This optimization is concretized by two methods, namely, the Maximum Power Point Tracking MPPT algorithm in the case where the characteristic of the turbine is known and the nonlinear method based on the theory of fuzzy logic controlled torque which is most appropriate when there is a lack of information on the characteristic ( C p ( ? ) ) of the turbine. However, the limitation of power is performed by action on the generator control only. Simulation results are presented and discussed.

Samira Chekkal; Narimen Aouzellag Lahaani; Djamal Aouzellag; Kaci Ghedamsi

2014-01-01T23:59:59.000Z

489

Next Generation Rooftop Unit  

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

Next Generation Rooftop Unit - Next Generation Rooftop Unit - CRADA Bo Shen Oak Ridge National Laboratory shenb@ornl.gov; 865-574-5745 April 3, 2013 ET R&D project in support of DOE/BTO Goal of 50% Reduction in Building Energy Use by 2030. CRADA project with Trane TOP US Commercial HVAC Equipment OEM 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: half of all US commercial floor space cooled by packaged AC units, consumes more than 1.0 Quad source energy/year; highly efficient systems needed

490

Next Generation Rooftop Unit  

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

Next Generation Rooftop Unit - Next Generation Rooftop Unit - CRADA Bo Shen Oak Ridge National Laboratory shenb@ornl.gov; 865-574-5745 April 3, 2013 ET R&D project in support of DOE/BTO Goal of 50% Reduction in Building Energy Use by 2030. CRADA project with Trane TOP US Commercial HVAC Equipment OEM 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: half of all US commercial floor space cooled by packaged AC units, consumes more than 1.0 Quad source energy/year; highly efficient systems needed

491

Generative Design Systems Applied to Low-Energy Buildings  

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

Generative Design Systems Applied to Low-Energy Buildings Generative Design Systems Applied to Low-Energy Buildings Speaker(s): Maria Luisa de Oliveira Gama Caldas Date: March 15, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Paul Mathew Generative Design Systems (GDS) represent a step beyond parametric models, integrating design goals, building simulations and shape generation. In this seminar, present and future research projects on the application of different GDS to low-energy buildings are discussed. The software GENE_ARCH integrates energy simulations with multicriteria search methods such as pareto genetic algorithms, to locate acceptable alternatives that move the current design towards performance goals set by the user. DIVA, a system that integrates parametric geometrical modeling with Radiance, Daysim and

492

Unit Commitment Considering Generation Flexibility and Environmental Constraints  

SciTech Connect

This paper proposes a new framework for power system unit commitment process, which incorporates the generation flexibility requirements and environmental constraints into the existing unit commitment algorithm. The generation flexibility requirements are to address the uncertainties with large amount of intermittent resources as well as with load and traditional generators, which causes real-time balancing requirements to be variable and less predictable. The proposed flexibility requirements include capacity, ramp and ramp duration for both upward and downward balancing reserves. The environmental constraints include emission allowance for fossil fuel-based generators and ecological regulations for hydro power plants. Calculation of emission rates is formulated. Unit commitment under this new framework will be critical to the economic and reliable operation of the power grid and the minimization of its negative environmental impacts, especially when high penetration levels of intermittent resources are being approached, as required by the renewable portfolio standards in many states.

Lu, Shuai; Makarov, Yuri V.; Zhu, Yunhua; Lu, Ning; Prakash Kumar, Nirupama; Chakrabarti, Bhujanga B.

2010-07-31T23:59:59.000Z

493

Lower granite GIS data description and collection guidelines  

SciTech Connect

The Lower Granite Geographic Information System (GIS) was developed jointly by the US Army Corps of Engineers (USCOE) Walla Walla District and the Pacific Northwest Laboratory (PNL). The goal of the project is to use GIS technology to analyze impacts of the drawdown mitigation option on the physical and biological environment of the Lower Granite Reservoir. The drawdown mitigation option is based on the hypothesis that faster juvenile salmon travel to the ocean would result in higher juvenile survival and greater smolt-to-adult return ratios; to accomplish this, reservoir elevations would be lowered to increase channel velocities. Altering the elevation of the reservoirs on the Snake River is expected to have a variety of impacts to the Physical environment including changes to water velocity, temperature, dissolved gases, and turbidity. The GIS was developed to evaluate these changes and the resulting impacts on the anadromous and resident fish of the Snake River, as well as other aquatic organisms and terrestrial wildlife residing in the adjacent riparian areas. The Lower Granite GIS was developed using commercial hardware and software and is supported by a commercial relational database. Much of the initial system development involved collecting and incorporating data describing the river channel characteristics, hydrologic properties, and aquatic ecology. Potentially meaningful data for the Lower Granite GIS were identified and an extensive data search was performed. Data were obtained from scientists who are analyzing the habitats, limnology, and hydrology of the Snake River. The next six sections of this document describe the bathymetry, fish abundance, substrate, sediment chemistry, and channel hydrology data.

Gordon, J.L.; Evans, B.J.; Perry, E.M.

1995-12-01T23:59:59.000Z

494

Quadratic Diffusion Monte-Carlo Algorithms for Solving Atomic Many-Body Problems  

E-Print Network (OSTI)

that of the algorithm and can therefore degrade the algorithm to lower order. ?2.95- E ?3.05- ?3.1$ 0.1 0.2 0.3 0.4 0.5 FIG. 1. The trial ground-state energy of helium as a function of ht as computed by four DMC algorithms. The statistical er- rors are at most... of view, consider T e ?ht(H ?E) 7 where H =K+ V is the 3X-dimensional many-body Ham- iltonian with kinetic energy K =?,'p and potential energy V= V(x). The iteration of T will converge to its largest eigenstate l %o), which is the ground state of H...

Chin, Siu A.

1990-01-01T23:59:59.000Z

495

The Bidimensionality Theory and Its Algorithmic Applications  

E-Print Network (OSTI)

of such problems include feedback vertex set, vertex cover, minimum maximal matching, face cover, a seriesThe Bidimensionality Theory and Its Algorithmic Applications by MohammadTaghi Hajiaghayi B Theory and Its Algorithmic Applications by MohammadTaghi Hajiaghayi Submitted to the Department

496

APPROXIMATION ALGORITHMS FOR CLUSTERING A Dissertation  

E-Print Network (OSTI)

develop new algorithmic techniques that will find application in a wide range of settings. We consider problems such as the stochastic versions of the set cover, vertex cover, and facility location problemsAPPROXIMATION ALGORITHMS FOR CLUSTERING PROBLEMS A Dissertation Presented to the Faculty

Swamy, Chaitanya

497

Using Stalmarck's algorithm to prove inequalities  

E-Print Network (OSTI)

of coverings. A covering C of a formula f is a set of monomials drawn from a set of predicates P of the abstraction. St°almarck's algorithm is a candidate method for computing these appoxima- tive coverings whenUsing St°almarck's algorithm to prove inequalities Byron Cook and Georges Gonthier Microsoft

Rajamani, Sriram K.

498

Forward Rasterization: A Reconstruction Algorithm for  

E-Print Network (OSTI)

-buffer sample- selection method, designed to ensure that the set of selected samples covers every visibleForward Rasterization: A Reconstruction Algorithm for Image-Based Rendering TROl-019 May 29, 2001: A RECONSTRUCTION ALGORITHM FOR IMAGE-BASED RENDERING by Voicu Sebastian Popescu A dissertation submitted

North Carolina at Chapel Hill, University of

499

Sommersemester 2002 Algorithms on Railway Optimisation  

E-Print Network (OSTI)

Sommersemester 2002 Seminar Algorithms on Railway Optimisation Miriam Walter 01/423731 SHUNTING. The topic shunting covers the routing of train units, the scheduling of personnel, cleaning and maintainance integer program of (MSP) and have a look at two online algorithms. Finally we will show

Brandes, Ulrik

500

Parameterized Algorithms for Graph Partitioning Problems  

E-Print Network (OSTI)

) time algorithm for any FGPP. Parameterized by p, Max and Min k-Vertex Cover can be solved in times O (1Parameterized Algorithms for Graph Partitioning Problems Hadas Shachnai and Meirav Zehavi are constants defining the problem, and m1, m2 are the cardinalities of the edge sets having both endpoints

Shachnai, Hadas