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1

Turbo Dynamics | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark JumpDetective:Toyo AluminiumCityTullahoma,Turbo Dynamics Jump

2

Designing and Mapping of a Turbo Decoder for 3G Mobile Systems Using Dynamically Reconfigurable Architecture  

E-Print Network [OSTI]

Designing and Mapping of a Turbo Decoder for 3G Mobile Systems Using Dynamically Reconfigurable University, USA {imding|alsolaim|starzyk}@bobcat.ent.ohiou.edu Abstract Turbo codes enable high quality communication links by offering exceptional error correction capabilities. Turbo coding is proposed

Starzyk, Janusz A.

3

Zero State Doped Turbo Equalizer Orhan GAZI, is with Electronics and Communication Engineering Department, Cankaya University, 06530,  

E-Print Network [OSTI]

1 Zero State Doped Turbo Equalizer Orhan GAZI, is with Electronics and Communication Engineering. In this article we propose zero state doped turbo equalizers (ZSDTEs) which can be processed in parallel and have to the sliding window method. Index Terms-- Turbo Codes, Turbo Equalizer, Zero State Doped Turbo Equalizer. I

Yýlmaz, �zgür

4

A Turbo Code Tutorial William E. Ryan  

E-Print Network [OSTI]

A Turbo Code Tutorial William E. Ryan New Mexico State University Box 30001 Dept. 3-O, Las Cruces, NM 88003 wryan@nmsu.edu Abstract| We give a tutorial exposition of turbo codes and the associated algorithms. Included are a simple derivation for the performance of turbo codes, and a straightforward

Shea, John M.

5

The University has a number of dedicated automotive research centres, including the Powertrain and Vehicle Research Centre, the Turbo Centre and LARG (Lean and Agile  

E-Print Network [OSTI]

The University has a number of dedicated automotive research centres, including the Powertrain and Vehicle Research Centre, the Turbo Centre and LARG (Lean and Agile Research Group) Automotive. The research carried out through these centres addresses the broad issues associated with the automotive

Burton, Geoffrey R.

6

REDUCED-COMPLEXITY DECODING FOR CONCATENATED CODES BASED ON RECTANGULAR PARITY-CHECK CODES AND TURBO CODES  

E-Print Network [OSTI]

AND TURBO CODES John M. Shea and Tan F. Wong University of Florida Department of Electrical and Computer-check code (RPCC) with a turbo code. These concatenated codes are referred to as RPCC+turbo codes. RPCC+turbo codes have been shown to significantly outperform turbo codes in several scenarios [1],[2]. One

Wong, Tan F.

7

ENERGY-EFFICIENT TURBO DECODER Jagadeesh Kaza and Chaitali Chakrabarti  

E-Print Network [OSTI]

ENERGY-EFFICIENT TURBO DECODER Jagadeesh Kaza and Chaitali Chakrabarti Department of Electrical Engineering Arizona State University, Tempe, 85287 jagadeeshk@asu.edu, chaitali@asu.edu ABSTRACT Turbo codes termination on the Bit Error Rate (BER) and energy consumption for a Turbo decoder implemented on a general

Kambhampati, Subbarao

8

Turbo Decoding as Constrained Optimization John M. Walsh  

E-Print Network [OSTI]

Turbo Decoding as Constrained Optimization John M. Walsh School of Elec. and Comp. Eng. Cornell. Cornell University Ithaca, NY 14850 johnson@ece.cornell.edu June 25, 2005 Abstract The turbo decoder was not originally introduced as a solution to an optimization problem. This has made explaining just why the turbo

Regalia, Phillip A.

9

A Pipelined Turbo Decoder with Random Convolutional Interleaver Werner Henkel  

E-Print Network [OSTI]

A Pipelined Turbo Decoder with Random Convolutional Interleaver Werner Henkel University of Applied: jusif, sayir¡ @ftw.at Abstract-- This paper describes a pipelined iterative decoder ("Turbo" decoder. INTRODUCTION SINCE the introduction of "Turbo" codes in 1993 [1] the coding community has put much effort

Henkel, Werner

10

Electric Turbo Compounding Technology Update  

Broader source: Energy.gov (indexed) [DOE]

Turbo Compounding Technology Update Electric Turbo Compounding Technology Update 15 August, 2007 Carl Vuk 15 August, 2007 Carl Vuk Electric Turbo Compounding Highlights Electric...

11

Turbo Equalization With Irregular Turbo Codes  

E-Print Network [OSTI]

Abstract—We analyze a turbo equalization system that combines Maximum a Posteriori Probability (MAP) equalization with irregular turbo codes. Our goal is to approach the information capacity limit for severe Inter-Symbol Interference (ISI) channels. To this end, we optimize the degree profile of irregular turbo codes by maximizing the minimum distance between the mutual information transfer functions for the MAP equalizer and decoder. We show that turbo equalizers employing such optimized irregular turbo codes can approach the information capacity limit of some severe ISI channels within 0.75 dB. I.

Vladimir D. Trajkovi?; Minyue Fu; Peter J. Schreier

12

How to produce a turbo equalization system with complexity O(logL)?  

E-Print Network [OSTI]

How to produce a turbo equalization system with complexity O(logL)? by Professor Defeng Huang University of Hong Kong Abstract Following the great success of turbo codes in 1993, turbo equalization-symbol interference channels. However, for more than 15 years, the prohibitive complexity of turbo equalization has

Huang, Jianwei

13

Dynamics of Anisotropic Universes  

E-Print Network [OSTI]

We present a general study of the dynamical properties of Anisotropic Bianchi Universes in the context of Einstein General Relativity. Integrability results using Kovalevskaya exponents are reported and connected to general knowledge about Bianchi dynamics. Finally, dynamics toward singularity in Bianchi type VIII and IX universes are showed to be equivalent in some precise sence.

Jerome Perez

2006-03-30T23:59:59.000Z

14

Advance Turbo Encoder and Turbo Decoder  

E-Print Network [OSTI]

Abstract- This paper presents the design and development of an efficient VLSI architecture for 3GPP advanced Turbo decoder by utilizing the convolutional interleaver. The high-throughput 3GPP Advance Turbo code requires turbo decoder architecture. Interleaver is known to be the main obstacle to the decoder implementation and introduces latency, due to the collisions it introduces in accesses to memory. In this paper, we propose a low-complexity Soft Input Soft Output (SISO) turbo decoder for memory architecture to enable the Turbo decoding that achieves minimum latency. Design trade-offs in terms of area and throughput efficiency are explored to find the optimal architecture. The proposed Turbo decoder has been modeled using Simulink; various test cases are used to estimate the performances. The results are analyzed and achieved 50 % reduction in computation time along with reduced BER (e-3). The hardware of the Turbo Encoder and Turbo Decoder has been modeled in Verilog, simulated in Modelsim, synthesized using TSMC 65 nm Synopsys Design compiler and physical implementation has been carried out using IC Compiler.

Manjunatha K N; Kiran B; Prasanna Kumar. C

15

Unequal Error Protection Turbo Codes  

E-Print Network [OSTI]

Unequal Error Protection Turbo Codes Diploma Thesis Neele von Deetzen Arbeitsbereich Nachrichtentechnik School of Engineering and Science Bremen, February 28th, 2005 #12;Unequal Error Protection Turbo Convolutional Codes / Turbo Codes 18 3.1 Structure

Henkel, Werner

16

Convergence and Complexity Analysis of Turbo Demodulation with Turbo Decoding  

E-Print Network [OSTI]

Convergence and Complexity Analysis of Turbo Demodulation with Turbo Decoding Salim Haddad, Amer (BICM) with different modulation orders and Turbo Codes with various code rates are frequently adopted-ID schemes was replaced by a turbo code, only a small gain of 0.1 dB was observed. This result makes BICM

Brest, Université de

17

Robust Turbo Equalization Under Channel Uncertainties Nargiz Kalantarova, Suleyman S. Kozat and Alper T. Erdogan  

E-Print Network [OSTI]

Robust Turbo Equalization Under Channel Uncertainties Nargiz Kalantarova, Suleyman S. Kozat and Alper T. Erdogan Koc University, Istanbul, 34450, Turkey Abstract-- Robust turbo equalization over is investigated. The turbo equal- ization framework proposed in this paper contains a linear equalizer (LE

Erdogan, Alper Tunga

18

Distance Spectrum Analysis of Third Generation Turbo Codes  

E-Print Network [OSTI]

Abstract: Turbo Codes are a class of powerful error correction codes that were introduced in 1993 by a group of researchers from France, which has the performance near the limit of Claude Shannon. After the introduction of turbo codes it has given raise a tremendous research work related to the new coding theory. This paper addresses the performance of Turbo codes by examining the codes ’ distance spectrum. It is well known that error floor occurs in the performance curve of turbo codes at moderate to high signal-to-noise ratio. The cause of error floor is due to the relatively low free distance of the codewords. Several techniques were proposed by researchers to lower the error floor. These techniques are assessed in this paper. To determine the free distance several algorithms were developed by different researchers. In this paper we used one of the recent algorithm to evaluate the distance spectrum of Turbo codes. We concentrate our analysis to measure and explain the distance spectrum of UMTS (Universal Mobile Telecommunication System), cdma2000 and CCSDS (Consultative Committee for Space Data Systems) standards Turbo Codes. It is shown that the distance spectrum depends on the code rate, interleaver size and the interleaver type.This distance spectrum of turbo codes can be used to estimate its performance at medium to higher SNR (signal to noise ratio). From our analysis we find out that the distance spectrum is one of the elementary issues using which one can find the optimum architecture of Turbo codes for specific application.

unknown authors

19

Chaotic Turbo Codes  

E-Print Network [OSTI]

This paper describes a new class of codes, chaotic turbo codes. They were born from a symbiosis between a chaotical digital encoder and a turbo code. This paper investigates the most important properties of both chaotic digital encoders and turbo encoders in order to understand how the two complement each other. A Chaotic Turbo Encoder is then described and initial results will be presented. I. INTRODUCTION A chaotic digital encoder was defined for the first time in [1] as a non--linear digital filter with finite precision (8 bits) which behaves in a quasi--chaotic fashion, both with zero and nonzero input sequences. A simple chaotic encoder is shown in Figure 1 [1]. D Y k X k LCIRC D Figure 1: Chaotic Digital Encoder Mapper L L L L L L 1 The main features of chaotic digital encoders that are used in this paper are: # The system is digital which makes possible its integration with a turbo code. # The output of a chaotic digital encoder with arbitrary inputs has a broad...

S. Adrian Barbulescu; Andrew Guidi; Steven S. Pietrobon

20

PERFORMANCE EVALUATION OF TURBO CODES  

E-Print Network [OSTI]

PERFORMANCE EVALUATION OF TURBO CODES by Guangchong Zhu A project submitted to the Department named ``Turbo codes'' which claims an extraordinary performance with reasonable decoding complexity. In this project, we begin with a study on the structure and principle of Turbo codes. We then investigate

Alajaji, Fady

Note: This page contains sample records for the topic "turbo dynamics university" 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

From Turbo2 to TurboWin For ages already, information about  

E-Print Network [OSTI]

From Turbo2 to TurboWin For ages already, information about the weather on board ships was re the operating sys- tem MsDOS and was called, suggesting a `speedy' character, Turbo2 (Turbo Transmission

Koek, Frits

22

Van Turbo2 naar TurboWin Al eeuwen lang werden de gege-  

E-Print Network [OSTI]

Van Turbo2 naar TurboWin Al eeuwen lang werden de gege- vens over het weer aan boord van schepen' karakter te ge- ven, Turbo2 (Turbo Transmission of Weather Observations). Andere namen die indertijd werden

Koek, Frits

23

Near-Capacity Turbo Equalization Using Optimized Turbo Codes  

E-Print Network [OSTI]

Abstract—In this paper we analyze a turbo equalization scheme that combines Maximum a Posteriori Probability (MAP) equalization and turbo decoding. Our aim is to optimize the turbo equalizer in order to approach the information capacity limit for channels with severe Inter-Symbol Interference (ISI). For this purpose, we perform an extensive search for turbo codes that give an SNR-BER performance closest to the channel information capacity limit. Our results show that the optimized turbo equalizer can approach the information capacity limit to within 0.7 dB. We also optimize the turbo equalizer in terms of the minimum number of required turbo decoding iterations. Our results show that a turbo decoder within a turbo equalization loop requires only a small number of iterations. Finally, our analysis reveals that when there are turbo codes with similar extrinsic information transfer characteristics, the computational complexity can be reduced by choosing the code with the smallest constraint length with no loss in SNR-BER performance. I.

Vladimir D. Trajkovi?; Minyue Fu; Peter J. Schreier

24

Turbo and LDPC Codes: Implementation, Simulation,  

E-Print Network [OSTI]

1 Turbo and LDPC Codes: Implementation, Simulation, and Standardization June 7, 2006 Matthew/7/2006 Turbo and LDPC Codes 2/133 Tutorial Overview Channel capacity Convolutional codes ­ the MAP algorithm Turbo codes ­ Standard binary turbo codes: UMTS and cdma2000 ­ Duobinary CRSC turbo codes: DVB

Valenti, Matthew C.

25

Entanglement boosts quantum turbo codes  

E-Print Network [OSTI]

One of the unexpected breakdowns in the existing theory of quantum serial turbo coding is that a quantum convolutional encoder cannot simultaneously be recursive and non-catastrophic. These properties are essential for a quantum turbo code to have an unbounded minimum distance and for its iterative decoding algorithm to converge, respectively. Here, we show that the entanglement-assisted paradigm gives a theoretical and practical "turbo boost" to these codes, in the sense that an entanglement-assisted quantum (EAQ) convolutional encoder can possess both of the aforementioned desirable properties, and simulation results indicate that entanglement-assisted turbo codes can operate reliably in a noise regime 5.5 dB beyond that of standard quantum turbo codes. Entanglement is the resource that enables a convolutional encoder to satisfy both properties because an encoder acting on only information qubits, classical bits, gauge qubits, and ancilla qubits cannot simultaneously satisfy them. We give several examples o...

Wilde, Mark M

2010-01-01T23:59:59.000Z

26

Implementation and Performance of Parallelised Turbo Decoders  

E-Print Network [OSTI]

1 Implementation and Performance of Parallelised Turbo Decoders Enes Erdin TUBITAK Defense In this paper, we discuss the implementation of a low latency decoding algorithm for turbo codes and repeat. Index Terms Turbo codes, repeat accumulate codes, parallellised turbo decoding, BCJR, FPGA, metric

Yýlmaz, �zgür

27

Turbo-Charged Lighting Design  

E-Print Network [OSTI]

TURBO-CHARGED LIGHTING DESIGN William H. Clark II Design Engineer O'Connell Robertson & Assoc Austin/ Texas ABSTRACT The task of the lighting designer has become very complex, involving thousands of choices for fixture types and hundreds...

Clark, W. H. II

28

Turbo-Decoding RNA Secondary Structure Turbo-Decoding of RNA Secondary Structure  

E-Print Network [OSTI]

Background Turbo-Decoding RNA Secondary Structure References Turbo-Decoding of RNA Secondary and Computational Biology June 18, 2013 1 #12;Outline Turbo-decoding in Communications: A Quick Review #12;Outline Turbo-decoding in Communications: A Quick Review RNA Structure Analysis: Motivation and Background RNA

Sharma, Gaurav

29

IEEE COMMUNICATIONS LETTERS, VOL. 2, NO. 4, APRIL 1998 107 Combined Turbo Equalization and Turbo Decoding  

E-Print Network [OSTI]

IEEE COMMUNICATIONS LETTERS, VOL. 2, NO. 4, APRIL 1998 107 Combined Turbo Equalization and Turbo Decoding Dan Raphaeli, Member, IEEE, and Yoram Zarai Abstract-- In this letter, the subject of turbo coding will be presented, which combines the channel equalization and the turbo decoding. At each iteration extrinsic

Raphaeli, Dan

30

Turbo Lattices: Construction and Performance Analysis  

E-Print Network [OSTI]

In this paper a new class of lattices called turbo lattices is introduced and established. We use the lattice Construction $D$ to produce turbo lattices. This method needs a set of nested linear codes as its underlying structure. We benefit from turbo codes as our basis codes. Therefore, a set of nested turbo codes based on nested interleavers and nested convolutional codes is built. To this end, we employ both tail-biting and zero-tail convolutional codes. Using these codes, along with construction $D$, turbo lattices are created. Several properties of Construction $D$ lattices and fundamental characteristics of turbo lattices including the minimum distance, coding gain, kissing number and an upper bound on the probability of error under a maximum likelihood decoder over AWGN channel are investigated. Furthermore, a multi-stage turbo lattice decoding algorithm based on iterative turbo decoding algorithm is given. Finally, simulation experiments provide strong agreement with our theoretical results. More prec...

Sakzad, Amin; Panario, Daniel

2011-01-01T23:59:59.000Z

31

Shortened Turbo Codes  

E-Print Network [OSTI]

Simple arguments suggest that shortened codes must have distance properties equal to or better than those of their parent codes, and that they should be equally practical to decode. This relationship holds true in the case of low density generator codes and low density parity check codes. We investigate the properties of shortened turbo codes. I. Motivation for Shortening In our previous work on codes based on very sparse matrices we have observed that while codes with a low density generator matrix [1] are asymptotically bad, codes with a low density parity check matrix [2] are asymptotically good [3, 4, 5]. One way of viewing the relationship between low density generator matrix codes and low density parity check matrix codes is that one obtains a low density parity check matrix by taking the M \\Theta N parity check matrix [P IM ] of a (N; K) low density generator matrix code and chopping off its right-most M columns (where M = N \\Gamma K), to yield an M \\Theta K matrix [P], which...

David J.C. MacKay

32

Turbo-codes quantiques Mamdouh ABBARA  

E-Print Network [OSTI]

Turbo-codes quantiques Mamdouh ABBARA Th`ese r´ealis´ee `a INRIA, Sous la direction de Jean . . . . . . . . . . . . . . . . . . . . . . . . 15 1.8 Performances de d´ecodage d'un code convolutif . . . . . . . . . . 19 1.9 Le turbo-encodage en parall`ele . . . . . . . . . . . . . . . . . . . 20 1.10 Le turbo-encodage en s

Paris-Sud XI, Université de

33

CONTRACTIVITY IN TURBO ITERATIONS Phillip A. Regalia  

E-Print Network [OSTI]

CONTRACTIVITY IN TURBO ITERATIONS Phillip A. Regalia Department of Communications, Image Fourier 91011 Evry cedex France Phillip.Regalia@int-evry.fr ABSTRACT The turbo decoding algorithm has met with intense study over the past decade, in an attempt to harness the full power of the "turbo principle". Here

Regalia, Phillip A.

34

Optimality and Duality of the Turbo Decoder  

E-Print Network [OSTI]

INVITED P A P E R Optimality and Duality of the Turbo Decoder Two optimality criteria which underlie the turbo decoder are reconciled within. By Phillip A. Regalia, Fellow IEEE, and John MacLaren Walsh, Member IEEE ABSTRACT | The near-optimal performance of the turbo decoder has been a source

Regalia, Phillip A.

35

1 Evaluation of the Intel ® Core ™ i7 Turbo Boost feature  

E-Print Network [OSTI]

Abstract—The Intel ® Core ™ i7 processor code named Nehalem has a novel feature called Turbo Boost which dynamically varies the frequencies of the processor’s cores. The frequency of a core is determined by core temperature, the number of active cores, the estimated power and the estimated current consumption. We perform an extensive analysis of the Turbo Boost technology to characterize its behavior in varying workload conditions. In particular, we analyze how the activation of Turbo Boost is affected by inherent properties of applications (i.e., their rate of memory accesses) and by the overall load imposed on the processor. Furthermore, we analyze the capability of Turbo Boost to mitigate Amdahl’s law by accelerating sequential phases of parallel applications. Finally, we estimate the impact of the Turbo Boost technology on the overall energy consumption. We found that Turbo Boost can provide (on average) up to a 6% reduction in execution time but can result in an increase in energy consumption up to 16%. Our results also indicate that Turbo Boost sets the processor to operate at maximum frequency (where it has the potential to provide the maximum gain in performance) when the mapping of threads to hardware contexts is sub-optimal. I.

James Charles; Preet Jassi; Ananth Narayan S; Abbas Sadat; Ra Fedorova

36

Turbo Equalization Ralf Koetter, Andrew C. Singer, Michael Tuchler  

E-Print Network [OSTI]

1 Turbo Equalization Ralf Koetter, Andrew C. Singer, Michael T¨uchler Abstract-- Capitalizing on the tremendous performance gains of turbo codes and the turbo decoding algorithm, turbo equalization from intersymbol interference (ISI). In this paper, we dis- cuss the turbo equalization approach

Koetter, Ralf

37

On the Convergence Speed of Turbo Demodulation with Turbo Decoding  

E-Print Network [OSTI]

Iterative processing is widely adopted nowadays in modern wireless receivers for advanced channel codes like turbo and LDPC codes. Extension of this principle with an additional iterative feedback loop to the demapping function has proven to provide substantial error performance gain. However, the adoption of iterative demodulation with turbo decoding is constrained by the additional implied implementation complexity, heavily impacting latency and power consumption. In this paper, we analyze the convergence speed of these combined two iterative processes in order to determine the exact required number of iterations at each level. Extrinsic information transfer (EXIT) charts are used for a thorough analysis at different modulation orders and code rates. An original iteration scheduling is proposed reducing two demapping iterations with reasonable performance loss of less than 0.15 dB. Analyzing and normalizing the computational and memory access complexity, which directly impact latency and power consumption, ...

Haddad, Salim; Jezequel, Michel

2012-01-01T23:59:59.000Z

38

Turbo Decoding on the Binary Erasure Channel: Finite-Length Analysis and Turbo Stopping Sets  

E-Print Network [OSTI]

This paper is devoted to the finite-length analysis of turbo decoding over the binary erasure channel (BEC). The performance of iterative belief-propagation (BP) decoding of low-density parity-check (LDPC) codes over the BEC can be characterized in terms of stopping sets. We describe turbo decoding on the BEC which is simpler than turbo decoding on other channels. We then adapt the concept of stopping sets to turbo decoding and state an exact condition for decoding failure. Apply turbo decoding until the transmitted codeword has been recovered, or the decoder fails to progress further. Then the set of erased positions that will remain when the decoder stops is equal to the unique maximum-size turbo stopping set which is also a subset of the set of erased positions. Furthermore, we present some improvements of the basic turbo decoding algorithm on the BEC. The proposed improved turbo decoding algorithm has substantially better error performance as illustrated by the given simulation results. Finally, we give an expression for the turbo stopping set size enumerating function under the uniform interleaver assumption, and an efficient enumeration algorithm of small-size turbo stopping sets for a particular interleaver. The solution is based on the algorithm proposed by Garello et al. in 2001 to compute an exhaustive list of all low-weight codewords in a turbo code.

Eirik Rosnes; Øyvind Ytrehus; Senior Member

2006-01-01T23:59:59.000Z

39

RESEARCH Open Access Multi-non-binary turbo codes  

E-Print Network [OSTI]

RESEARCH Open Access Multi-non-binary turbo codes Horia Balta1,2 , Catherine Douillard3 and Radu Lucaciu1* Abstract This paper presents a new family of turbo codes called multi-non-binary turbo codes (MNBTCs) that generalizes the concept of turbo codes to multi-non-binary (MNB) parallel concatenated

Paris-Sud XI, Université de

40

Turbo Detection for Mobile MIMO Underwater Acoustic Communications  

E-Print Network [OSTI]

Turbo Detection for Mobile MIMO Underwater Acoustic Communications Jun Tao , Yahong Rosa Zheng-- Turbo detection for high data-rate single-carrier mobile multiple-input, multiple-output (MIMO signal is then sent to a MIMO turbo equalization module for detection. In the MIMO turbo equalization

Zheng, Yahong Rosa

Note: This page contains sample records for the topic "turbo dynamics university" 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

Figure 1. Block diagram of the turbo decoder. A Memory-Reduced Log-MAP Kernel for Turbo Decoder  

E-Print Network [OSTI]

Figure 1. Block diagram of the turbo decoder. A Memory-Reduced Log-MAP Kernel for Turbo Decoder--Generally, the Log-MAP kernel of the turbo decoding consume large memories in hardware implement- tation of the turbo decoder is implemented to verify the proposed memory-reduced Log- MAP kernel in 3.04Ã?3.04mm2 core

Hung, Shih-Hao

42

A REAL-TIME EMBEDDED SOFTWARE IMPLEMENTATION OF A TURBO ENCODER AND SOFT OUTPUT VITERBI ALGORITHM BASED TURBO DECODER  

E-Print Network [OSTI]

A REAL-TIME EMBEDDED SOFTWARE IMPLEMENTATION OF A TURBO ENCODER AND SOFT OUTPUT VITERBI ALGORITHM BASED TURBO DECODER M. Farooq Sabir, Rashmi Tripathi, Brian L. Evans and Alan C. Bovik Dept,rashmi,bevans,bovik}@ece.utexas.edu ABSTRACT Turbo codes are used for error protection, esp. in wireless systems. A turbo encoder consists

Evans, Brian L.

43

Quantum serial turbo-codes  

E-Print Network [OSTI]

We present a theory of quantum serial turbo-codes, describe their iterative decoding algorithm, and study their performances numerically on a depolarization channel. Our construction offers several advantages over quantum LDPC codes. First, the Tanner graph used for decoding is free of 4-cycles that deteriorate the performances of iterative decoding. Secondly, the iterative decoder makes explicit use of the code's degeneracy. Finally, there is complete freedom in the code design in terms of length, rate, memory size, and interleaver choice. We define a quantum analogue of a state diagram that provides an efficient way to verify the properties of a quantum convolutional code, and in particular its recursiveness and the presence of catastrophic error propagation. We prove that all recursive quantum convolutional encoder have catastrophic error propagation. In our constructions, the convolutional codes have thus been chosen to be non-catastrophic and non-recursive. While the resulting families of turbo-codes have bounded minimum distance, from a pragmatic point of view the effective minimum distances of the codes that we have simulated are large enough not to degrade the iterative decoding performance up to reasonable word error rates and block sizes. With well chosen constituent convolutional codes, we observe an important reduction of the word error rate as the code length increases.

David Poulin; Jean-Pierre Tillich; Harold Ollivier

2009-06-10T23:59:59.000Z

44

Proceedings of TURBO EXPO Turbine Technical Conference and Exposition TURBO EXPO 2011  

E-Print Network [OSTI]

the vane's unsteady aerody- namic response as well as the resulting acoustics in the annular ductProceedings of TURBO EXPO Turbine Technical Conference and Exposition TURBO EXPO 2011 June 6 Eu- ler acoustic simulations offer a potential broadband noise pre- diction methodology. The success

Grace, Sheryl M.

45

Synchronization of Turbo Codes Based on Online Statistics  

E-Print Network [OSTI]

Synchronization of Turbo Codes Based on Online Statistics Jian Sun and Matthew C. Valenti Wireless 26506-6109 email: [jian,mvalenti]@csee.wvu.edu, phone: 304-293-0405, fax: 304-293-8602 Abstract-- Turbo. Since turbo codes are intended to be deployed in environments with very low SNR, conventional

Valenti, Matthew C.

46

Joint Source-Channel Coding via Turbo Codes  

E-Print Network [OSTI]

Joint Source-Channel Coding via Turbo Codes by Guang-Chong Zhu A dissertation submitted coding. One of the most exciting break- throughs in channel coding is the invention of Turbo codes, whose- tigate three joint source-channel coding issues in the context of Turbo codes. In the #12;rst part

Alajaji, Fady

47

Turbo Space-Time Codes with Time Varying Linear Transformations  

E-Print Network [OSTI]

1 Turbo Space-Time Codes with Time Varying Linear Transformations Hangjun Chen and Alexander 07102 Email: {hangjun.chen; alexander.m.haimovich}@njit.edu Abstract Turbo space-time codes with symbols in this paper. It is shown that turbo codes with TVLT achieve full diversity gain and do not require exhaustive

Haimovich, Alexander

48

A Turbo Iteration Algorithm In 16QAM Hierarchical Modulation  

E-Print Network [OSTI]

A Turbo Iteration Algorithm In 16QAM Hierarchical Modulation Xu Zhe Electric and Information on the turbo code, OFDM modulation and 16QAM hierarchical modulation to increase the flexibility, and in the high SNR, it can also gain a high BER performance of low priority bit stream. Keywords- turbo iteration

Paris-Sud XI, Université de

49

Compression of redundancy free trellis stages in Turbo-Decoder  

E-Print Network [OSTI]

Compression of redundancy free trellis stages in Turbo-Decoder E. Boutillon, J. Sánchez-Rojas and C. Marchand For turbo code with coding rate close to one, the high puncturing rate induces long sequences. The computation is reduced accordingly. Introduction: Turbo codes with coding rate close to one are specified

Paris-Sud XI, Université de

50

On Multiple Slice Turbo Codes(1)(2) David Gnaedig*  

E-Print Network [OSTI]

On Multiple Slice Turbo Codes(1)(2) David Gnaedig* , Emmanuel Boutillon+ , Michel Jézéquel- , Vincent C. Gaudet° and P. Glenn Gulak& * TurboConcept + LESTER. Université de Bretagne Sud - ENST Bretagne.gnaedig@univ-ubs.fr, emmanuel.boutillon@univ-ubs.fr Abstract: The main problem concerning the hardware implementation of turbo

Paris-Sud XI, Université de

51

Turbo synchronization : an EM algorithm interpretation , C. Herzet  

E-Print Network [OSTI]

Turbo synchronization : an EM algorithm interpretation N. Noels* , C. Herzet , A. Dejonghe , V is devoted to turbo synchronization, that is to say the use of soft information to estimate parameters like carrier phase, frequency offset or timing within a turbo receiver. It is shown how maximum

Steendam, Heidi

52

Methods for the Reconstruction of Parallel Turbo Codes  

E-Print Network [OSTI]

We present two new algorithms for the reconstruction of turbo codes from a noisy intercepted bitstream. With these algorithms, we were able to reconstruct various turbo codes with realistic parameter sizes. To the best of our knowledge, these are the first algorithms able to recover the whole permutation of a turbo code in the presence of high noise levels.

Cluzeau, Mathieu; Tillich, Jean-Pierre

2010-01-01T23:59:59.000Z

53

Variable Latency Turbo Codes for Wireless Multimedia Applications  

E-Print Network [OSTI]

Variable Latency Turbo Codes for Wireless Multimedia Applications Matthew C. Valenti and Brian D acceptable latency and Bit Error Rate BER or Frame Error Rate FER. In turbo coded systems a tradeo between an adaptive turbo coding strategy for wire- less multimedia communications that incor- porates a set

Valenti, Matthew C.

54

CommunicotionTheory Improved Turbo Decoding through Belief  

E-Print Network [OSTI]

CommunicotionTheory Improved Turbo Decoding through Belief Propagation Saejoon Kim and Stephen B to obtain any insight as to the functionality of turbo decoding. Graph- based techniques do, however, lead to useful extensions and general- izations of the turbo decoding concept. In this paper we use a graph

Kim, Saejoon

55

Simplified Compression of Redundancy Free Trellis Sections in Turbo Decoder  

E-Print Network [OSTI]

1 Simplified Compression of Redundancy Free Trellis Sections in Turbo Decoder Emmanuel Boutillon that for an M state Turbo decoder, among the L compressed trellis stages, only m = 3 or even m = 2 are necessary turbo-code and/or to reduce its power consumption.1 I. INTRODUCTION The quality of an error control code

Paris-Sud XI, Université de

56

A HIGHLY PARALLEL TURBO PRODUCT CODE DECODER WITHOUT INTERLEAVING RESOURCE  

E-Print Network [OSTI]

A HIGHLY PARALLEL TURBO PRODUCT CODE DECODER WITHOUT INTERLEAVING RESOURCE Camille Leroux-STICC firstname.lastname@telecom-bretagne.eu ABSTRACT This article presents an innovative Turbo Product Code (TPC of such an architecture compared with exist- ing previous solutions. Considering a 6-iteration turbo de- coder of a (32

Paris-Sud XI, Université de

57

Joint Synchronization and Decoding Exploiting the Turbo Principle  

E-Print Network [OSTI]

Joint Synchronization and Decoding Exploiting the Turbo Principle John M. Walsh and C. Richard´el´ecommunications/GET 91011 Evry cedex France Abstract-- This paper investigates turbo methods for joint synchronization and decoding in pulse amplitude modulated (PAM) systems. We begin with a brief review of the turbo principle

Regalia, Phillip A.

58

Differential Turbo Coded Modulation with APP Channel Estimation  

E-Print Network [OSTI]

Differential Turbo Coded Modulation with APP Channel Estimation Sheryl L. Howard and Christian, iterative decoding. I. INTRODUCTION With the advent of turbo codes [1], [2] and iterative de- coding in very high noise/low signal- to-noise ratio (SNR) environments. Turbo trellis coded modulation (TTCM

Howard, Sheryl

59

AREA-EFFICIENTHIGH-THROUGHPUTVLSI ARCHITECTUREFOR MAP-BASED TURBO EQUALIZER  

E-Print Network [OSTI]

AREA-EFFICIENTHIGH-THROUGHPUTVLSI ARCHITECTUREFOR MAP-BASED TURBO EQUALIZER Seok-Jun Lee, Naresh R an area-efficient MAP-based turbo equalizer VLSI architecture by proposing a symbol-based soft-input soft-interleaved com- putation with an area savings of 25%. 1. INTRODUCTION The turbo decoding technique has found

Singer, Andrew C

60

SNR Estimation in Nakagami Fading with Diversity for Turbo Decoding  

E-Print Network [OSTI]

SNR Estimation in Nakagami Fading with Diversity for Turbo Decoding A. Ramesh£, A. Chockalingam-� fading channels without di- versity combining and used this estimate in the decoding of turbo codes. Now equal gain diversity combining. We use our SNR estimates in the iterative decoding of turbo codes

Chockalingam, A.

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While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


61

Fast Decodable Turbo Codes Orhan GAZI, A. Ozgur YILMAZ  

E-Print Network [OSTI]

1 Fast Decodable Turbo Codes Orhan GAZI, A. ¨Ozg¨ur YILMAZ Abstract-- Decoding delay is an important consideration for the use of turbo codes in practical applications. We propose a new structure for turbo codes which is very suitable for parallel decoding. It is shown by union bound analysis

Yýlmaz, �zgür

62

A Survey on Turbo Codes and Recent Developments  

E-Print Network [OSTI]

A Survey on Turbo Codes and Recent Developments by Halvor Utby halvor.utby@student.uib.no Thesis . . . . . . . 30 4 Turbo-codes 41 4.1 Shannon limit . . . . . . . . . . . . . . . . . . . . . . 41 4.2 Encoding . . . . . . . . . . . . . . 47 4.5.2 Soft-Output Viterbi Algorithm (SOVA) . . . . 48 5 New Research in Turbo Codes 51 5

Parker, Matthew Geoffrey

63

Self-Inverse Interleavers for Turbo Codes  

E-Print Network [OSTI]

In this work we introduce and study a set of new interleavers based on permutation polynomials and functions with known inverses over a finite field $\\mathbb{F}_q$ for using in turbo code structures. We use Monomial, Dickson, M\\"{o}bius and R\\'edei functions in order to get new interleavers. In addition we employ Skolem sequences in order to find new interleavers with known cycle structure. As a byproduct we give an exact formula for the inverse of every R\\'edei function. The cycle structure of R\\'edei functions are also investigated. Finally, self-inverse versions of permutation functions are used to construct interleavers. These interleavers are their own de-interleavers and are useful for turbo coding and turbo decoding. Experiments carried out for self-inverse interleavers constructed using these kind of permutation polynomials and functions show excellent agreement with our theoretical results.

Sakzad, Amin; Panario, Daniel; Eshghi, Nasim

2010-01-01T23:59:59.000Z

64

vTurbo: Accelerating Virtual Machine I/O Processing Using Designated Turbo-Sliced Core  

E-Print Network [OSTI]

In a virtual machine (VM) consolidation environment, it has been observed that CPU sharing among multiple VMs will lead to I/O processing latency because of the CPU access latency experienced by each VM. In this paper, we present vTurbo, a system that accelerates I/O processing for VMs by offloading I/O processing to a designated core. More specifically, the designated core – called turbo core – runs with a much smaller time slice (e.g., 0.1ms) than the cores shared by production VMs. Most of the I/O IRQs for the production VMs will be delegated to the turbo core for more timely processing, hence accelerating the I/O processing for the production VMs. Our experiments show that vTurbo significantly improves the VMs ’ network and disk I/O throughput, which consequently translates into application-level performance improvement. 1

Cong Xu; Sahan Gamage; Hui Lu; Ramana Kompella; Dongyan Xu

65

Critical Dynamics in the Early Universe  

E-Print Network [OSTI]

Methods and concepts for the study of phase transitions mediated by a time-dependent order-parameter field in curved spacetimes are discussed. A practical example is the derivation of an effective (quasi-)potential for the description of `slow-roll' inflation in the early universe. We first summarize our early results on viewing the symmetry behavior of constant background fields in curved but static spacetimes as finite size effect, and the use of derivative expansions for constructing effective actions for slowly-varying background fields. We then introduce the notion of dynamical finite size effect to explain how an exponential expansion of the scale factor imparts a finite size to the system and how the symmetry behavior in de Sitter space can be understood qualitatively in this light. We reason why the exponential inflation can be described equivalently by a scale transformation, thus rendering this special class of dynamics as effectively static. Finally we show how, in this view, one can treat the class of `slow-roll' inflation as a dynamic perturbation off the effectively static class of exponential inflation and understand it as a dynamical critical phenomenon in cosmology.

B. L. Hu

1993-02-22T23:59:59.000Z

66

The Quantum-Relativistic Dynamics of the Universe  

E-Print Network [OSTI]

From the analysis of the quantum and relativistic properties of the particles it results the unified quantum-relativistic dynamics of the physical reality (Universe).

Skalsky, Vladimir

2015-01-01T23:59:59.000Z

67

Turbo Decoding for PR4: Parallel Versus Serial Concatenation Tom Souvignier  

E-Print Network [OSTI]

Turbo Decoding for PR4: Parallel Versus Serial Concatenation Tom Souvignier , Arnon Friedmann Diego Quantum Corporation Seagate Technology Abstract -- Recent work on the application of turbo results comparing the parallel and serial concatenation systems will be presented. I. INTRODUCTION Turbo

Siegel, Paul H.

68

Irregular Turbo Codes in Block-Fading Channels  

E-Print Network [OSTI]

We study irregular binary turbo codes over non-ergodic block-fading channels. We first propose an extension of channel multiplexers initially designed for regular turbo codes. We then show that, using these multiplexers, irregular turbo codes that exhibit a small decoding threshold over the ergodic Gaussian-noise channel perform very close to the outage probability on block-fading channels, from both density evolution and finite-length perspectives.

Kraidy, Ghassan M; Fàbregas, Albert Guillén i

2010-01-01T23:59:59.000Z

69

Gravitational Dynamics in an Expanding Universe  

E-Print Network [OSTI]

The dynamical evolution of collisionless particles in an expanding background is described. After discussing qualitatively the key features, the gravitational clustering of collisionless particles in an expanding universe is modelled using some simple physical ideas. I show that it is indeed possible to understand the nonlinear clustering in terms of three well defined regimes: (1) linear regime (2) quasilinear regime which is dominated by scale-invariant radial infall and (3) nonlinear regime dominated by nonradial motions and mergers. Modelling each of these regimes separately I show how the nonlinear two point correlation function can be related to the linear correlation function in hierarchical models. This analysis leads to results which are in good agreement with numerical simulations thereby providing an explanation for numerical results. The ideas presented here will also serve as a powerful analytical tool to investigate nonlinear clustering in different models. Several implications of the result are discussed.

T. Padmanabhan

1995-10-05T23:59:59.000Z

70

Scaling Turbo Boost to a 1000 cores  

E-Print Network [OSTI]

The Intel Core i7 processor code named Nehalem provides a feature named Turbo Boost which opportunistically varies the frequencies of the processor's cores. The frequency of a core is determined by core temperature, the number of active cores, the estimated power consumption, the estimated current consumption, and operating system frequency scaling requests. For a chip multi-processor(CMP) that has a small number of physical cores and a small set of performance states, deciding the Turbo Boost frequency to use on a given core might not be difficult. However, we do not know the complexity of this decision making process in the context of a large number of cores, scaling to the 100s, as predicted by researchers in the field.

S, Ananth Narayan; Fedorova, Alexandra

2010-01-01T23:59:59.000Z

71

Analysis and Design of Tuned Turbo Codes  

E-Print Network [OSTI]

It has been widely observed that there exists a fundamental trade-off between the minimum distance properties and the iterative decoding convergence behavior of turbo-like codes. While capacity achieving code ensembles typically are asymptotically bad in the sense that their minimum distance does not grow linearly with block length, and they therefore exhibit an error floor at moderate-to-high signal to noise ratios, asymptotically good codes usually converge further away from channel capacity. In this paper, we introduce the concept of tuned turbo codes, a family of asymptotically good hybrid concatenated code ensembles, where minimum distance growth rates, convergence thresholds, and code rates can be traded-off using two tuning parameters, {\\lambda} and {\\mu}. By decreasing {\\lambda}, the asymptotic minimum distance growth rate is reduced for the sake of improved iterative decoding convergence behavior, while increasing {\\lambda} raises the growth rate at the expense of worse convergence behavior, and thus...

Koller, Christian; Kliewer, Joerg; Vatta, Francesca; Zigangirov, Kamil S; Costello, Daniel J

2010-01-01T23:59:59.000Z

72

ag turbo ii: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

decoding algorithm to converge, respectively. Here, we show that the entanglement-assisted paradigm gives a theoretical and practical "turbo boost" to these codes, in the sense...

73

Dynamics, Brandom-Style Bernhard Nickel Harvard University  

E-Print Network [OSTI]

Dynamics, Brandom-Style Bernhard Nickel · Harvard University June 26, 2011 Abstract This paper understood as a special version of dynamic semantics, so that these semantics by themselves offer and motivations. Keywords static semantics · dynamic semantics · incompatibility se- mantics · brandom · norms

Nickel, Bernhard

74

3D Duo Binary Turbo Decoder Hardware Implementation  

E-Print Network [OSTI]

Abstract: Each digital communication system needs channel coding to provide a certain quality of service. With the introducation of advanced channel codes like turbo codes and LDPC codes, error correcting near theoretical shannon limit became possible. Many applications require a low error floor in addition. The classical turbo code cannot meet this demand. Increasing the number of components codes, non-binary component codes or code concatenation are solutions for this problem, but come with a large complexity increase. In 2007 a new class of turbo codes, the 3D turbo code, was introduced by Berrou. The 3D turbo code provides a very good convergence and a large minimum distance at a low complexity. To the best of our knowledge this paper presents the first hardware implementation of a 3D turbo decoder. In addition we compare the implementation complexity of the 3D turbo decoder with the 8 and 16-state duo binary turbo decoder on FPGA and in 65nm ASIC technology.

Timo Lehngik-emden; Matthias Alles; Norbert Wehn

75

Some Reflections on the Design of Bandwidth Efficient Turbo Codes  

E-Print Network [OSTI]

In this paper we review several approaches to bandwidth efficient turbo coding that have appeared in the recent literature. In addition, some new designs using bit interleaved coded modulation are introduced, including asymmetric designs and low-complexity multiple turbo code designs.

Daniel J. Costello, Jr.; Adrish Banerjee; Thomas E. Fuja; Peter C. Massey

76

Hybrid Automatic Repeat Request Scheme With Turbo Codes  

E-Print Network [OSTI]

A novel hybrid automatic repeat request system based on turbo codes, called turbo HARQ system, is proposed. The iterative turbo decoding procedure is exploited to request retransmission of not decodable blocks without the necessity of an outer error--detecting code. It is shown that the turbo HARQ scheme with code rate R c = 1=2 and interleaver length 1024 significantly outperforms the classical turbo coding scheme --- especially for low SNR --- without essential loss in throughput. 1 INTRODUCTION Automatic repeat request (ARQ) protocols are well--known methods to achieve high reliability in digital transmission schemes. The information is protected by an error--detecting block code. If the decoder detects an erroneous transmitted block, retransmission of this block is requested via a feedback channel which is assumed to be error--free throughout this paper. Additionally, the request is assumed to be repeated until the decoder detects error--free transmission. The great advantage of s...

Jozef Hamorsky; Udo Wachsmann; Johannes B. Huber; Anton Cizmar

77

Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance  

E-Print Network [OSTI]

Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance) turbo equalisers are considered. The first one is the turbo FD linear equaliser (LE). The second one is a parallel interference cancellation (PIC)-assisted turbo FD decision-feedback equaliser (DFE). The final one

Quartly, Graham

78

TURBO EQUALIZATIONWITH AN UNKNOWN CHANNEL SeongwookSong', Andrew C. Singer2,Koeng-MoSun?  

E-Print Network [OSTI]

TURBO EQUALIZATIONWITH AN UNKNOWN CHANNEL SeongwookSong', Andrew C. Singer2,Koeng-MoSun? l t 2Univ the method of turbo equalization originally de- veloped by Douillard, et al. [3]. In its original form, turbo and without training data. The resultingjoint channeland data estimator is shown to outperform standard turbo

Singer, Andrew C

79

Space-Time Turbo Codes Youjian Liu and Michael P. Fitz  

E-Print Network [OSTI]

Space-Time Turbo Codes Youjian Liu and Michael P. Fitz Department of Electrical Engineering. We propose a new class of scalable space{time codes based on turbo codes or turbo trellis codes 1]. They will be referred as space{time turbo codes (STT) in the sequel. The scalability implies that the code rate

Liu, Youjian "Eugene"

80

ENERGY EFFICIENT TURBO BASED SPACE-TIMECODER YumingZhu, Laura Li and ChaitaliChakrabarti  

E-Print Network [OSTI]

ENERGY EFFICIENT TURBO BASED SPACE-TIMECODER YumingZhu, Laura Li and ChaitaliChakrabarti Department that Space-Time code is an effective approach to increasing the data rate over wireless channels. Turbo of the Turbo codes. In this paper, we compare two Turbo-based Space-Time Codes and their approximate versions

Kambhampati, Subbarao

Note: This page contains sample records for the topic "turbo dynamics university" 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

Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders  

E-Print Network [OSTI]

Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders David Gnaedig Turbo on a DSP a parallel Max-Log-MAP algorithm for turbo decoders. It consists in using SIMD instructions by the use of an adapted two-dimensional turbo code and its parallel interleaver structure. After a brief

Paris-Sud XI, Université de

82

From Application to ASIP-based FPGA prototype: a Case Study on Turbo Decoding  

E-Print Network [OSTI]

From Application to ASIP-based FPGA prototype: a Case Study on Turbo Decoding Olivier Muller, Amer turbo decoder. It introduces turbo decoding application and proposes an Application-Specific Instruction when decoding a double binary turbo code with 5 iterations. 1. Introduction Applications in the field

Muller, Olivier

83

Joint Turbo Equalization and Channel Estimation with Fixed-Lag Extended Kalman Filtering  

E-Print Network [OSTI]

Joint Turbo Equalization and Channel Estimation with Fixed-Lag Extended Kalman Filtering Xin Li turbo equalization receiver for data transmission over time-varying frequency-selective fading channels with different types of turbo equalizers demonstrates the advantage of the proposed turbo equalizer. I

Wong, Tan F.

84

2090 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 7, JULY 2009 Turbo Receivers for  

E-Print Network [OSTI]

2090 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 57, NO. 7, JULY 2009 Turbo Receivers for Interleave turbo receivers for Interleave- Division Multiple-Access (IDMA) systems will be discussed. The multiple provides faster convergence of the turbo receiver. The discussed turbo receivers will be evaluated by means

Benoît, Escrig

85

A New Stopping Criterion for Efficient Early Termination in Turbo Decoder Designs  

E-Print Network [OSTI]

A New Stopping Criterion for Efficient Early Termination in Turbo Decoder Designs Fan-Min Li and An, stopping criterion, early termination, Turbo codes, Turbo principle. 1. INTRODUCTION In 1993, a new class of Forward-Error-Correction (FEC) code, Turbo code, was introduced by Berrou, Glavieux and Thitimajashima [1

Hung, Shih-Hao

86

Turbo-BLAST with Semi-Blind Co-Channel Interference Cancellation in Multicell MIMO Systems  

E-Print Network [OSTI]

Turbo-BLAST with Semi-Blind Co-Channel Interference Cancellation in Multicell MIMO Systems Vivek to obtain in practice. In this paper we first exploit the turbo principle to enhance an effective blind detection method based on multiuser kurtosis (MUK) maximization, thus coined as turbo-MUK. In turbo

Dai, Huaiyu

87

AN ANALOG TURBO DECODER FOR AN (8,4) PRODUCT CODE Neiyer Correal and Joe Heck  

E-Print Network [OSTI]

AN ANALOG TURBO DECODER FOR AN (8,4) PRODUCT CODE Neiyer Correal and Joe Heck Florida@wvu.edu ABSTRACT This paper illustrates how analog circuitry can be used to decode turbo and turbo-like codes. INTRODUCTION Iteratively decodable codes, such as turbo [1] and low density parity check (LDPC) [2] codes

Valenti, Matthew C.

88

Turbo Equalization of Non-Linear Satellite Channels using Soft Interference Cancellation  

E-Print Network [OSTI]

Turbo Equalization of Non-Linear Satellite Channels using Soft Interference Cancellation D by such channels is considered, by employing a soft interference canceller operating in a turbo equalization framework. I. INTRODUCTION Inspired by the advent of turbo codes [1], turbo equal- ization (TE) [2] has

Rontogiannis, Athanasios A.

89

Space-Time Turbo Code Using Quantized Feedback with Two Transmit Antennas  

E-Print Network [OSTI]

Space-Time Turbo Code Using Quantized Feedback with Two Transmit Antennas Chi Hoon Yoo and Jae Hong-time turbo code with two transmit antennas in a quasi- static Rayleigh fading channel. The performance for the space-time turbo code. To improve the perform- ance of the space-time turbo code, we propose the new

Lee, Jae Hong

90

Wilson TurboPower | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskey Flats Geothermal Area JumpTurboPower Jump to:

91

The Error-Pattern-Correcting Turbo Equalizer  

E-Print Network [OSTI]

The error-pattern correcting code (EPCC) is incorporated in the design of a turbo equalizer (TE) with aim to correct dominant error events of the inter-symbol interference (ISI) channel at the output of its matching Viterbi detector. By targeting the low Hamming-weight interleaved errors of the outer convolutional code, which are responsible for low Euclidean-weight errors in the Viterbi trellis, the turbo equalizer with an error-pattern correcting code (TE-EPCC) exhibits a much lower bit-error rate (BER) floor compared to the conventional non-precoded TE, especially for high rate applications. A maximum-likelihood upper bound is developed on the BER floor of the TE-EPCC for a generalized two-tap ISI channel, in order to study TE-EPCC's signal-to-noise ratio (SNR) gain for various channel conditions and design parameters. In addition, the SNR gain of the TE-EPCC relative to an existing precoded TE is compared to demonstrate the present TE's superiority for short interleaver lengths and high coding rates.

Alhussien, Hakim

2010-01-01T23:59:59.000Z

92

Performance Analyses of 38 kWe Turbo-Machine Unit for Space Reactor Power Systems  

SciTech Connect (OSTI)

This paper developed a design and investigated the performance of 38 kWe turbo-machine unit for space nuclear reactor power systems with Closed Brayton Cycle (CBC) energy conversion. The compressor and turbine of this unit are scaled versions of the NASA's BRU developed in the sixties and seventies. The performance results of turbo-machine unit are calculated for rotational speed up to 45 krpm, variable reactor thermal power and system pressure, and fixed turbine and compressor inlet temperatures of 1144 K and 400 K. The analyses used a detailed turbo-machine model developed at University of New Mexico that accounts for the various energy losses in the compressor and turbine and the effect of compressibility of the He-Xe (40 mole/g) working fluid with increased flow rate. The model also accounts for the changes in the physical and transport properties of the working fluid with temperature and pressure. Results show that a unit efficiency of 24.5% is achievable at rotation speed of 45 krpm and system pressure of 0.75 MPa, assuming shaft and electrical generator efficiencies of 86.7% and 90%. The corresponding net electric power output of the unit is 38.5 kWe, the flow rate of the working fluid is 1.667 kg/s, the pressure ratio and polytropic efficiency for the compressor are 1.60 and 83.1%, and 1.51 and 88.3% for the turbine.

Gallo, Bruno M.; El-Genk, Mohamed S. [Institute for Space and Nuclear Power Studies and Chemical and Nuclear Engineering Department, University of New Mexico, Albuquerque, NM, 87131 (United States)

2008-01-21T23:59:59.000Z

93

Coding Theorems for "Turbo-Like" Codes Dariush Divsalar, Hui Jin, and Robert J. McEliece  

E-Print Network [OSTI]

Coding Theorems for "Turbo-Like" Codes Dariush Divsalar, Hui Jin, and Robert J. McEliece Jet call these systems "turbo-like" codes and they include as special cases both the classical turbo codes for turbo-like codes. 1. Introduction. The 1993 discovery of turbo codes by Berrou, Glavieux

Abu-Mostafa, Yaser S.

94

Turbo-generator control with variable valve actuation  

DOE Patents [OSTI]

An internal combustion engine incorporating a turbo-generator and one or more variably activated exhaust valves. The exhaust valves are adapted to variably release exhaust gases from a combustion cylinder during a combustion cycle to an exhaust system. The turbo-generator is adapted to receive exhaust gases from the exhaust system and rotationally harness energy therefrom to produce electrical power. A controller is adapted to command the exhaust valve to variably open in response to a desired output for the turbo-generator.

Vuk, Carl T. (Denver, IA)

2011-02-22T23:59:59.000Z

95

COPYRIGHT 2006 by ASME Proceedings of ASME TURBO EXPO 2007  

E-Print Network [OSTI]

COPYRIGHT 2006 by ASME 1 Proceedings of ASME TURBO EXPO 2007 Power for Land, Sea, and Air May 14. [7] and Dorney and Schwab [8]. #12;COPYRIGHT 2006 by ASME 2 Due to significant energy extraction

Camci, Cengiz

96

Leaking Interleavers for UEP Turbo Codes Abdul Wakeel, David Kronmueller, Werner Henkel, and Humberto Beltr~ao Neto  

E-Print Network [OSTI]

Leaking Interleavers for UEP Turbo Codes Abdul Wakeel, David Kronmueller, Werner Henkel to Turbo coding's exceptional performance. An interleaver provides bit-permutation designed to ensure deterministic randomness. When applying interleavers to unequal error protecting (UEP) Turbo codes, typically

Henkel, Werner

97

Design & Development of e-TurboTM for SUV and Light Truck Applications...  

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

& Development of e-TurboTM for SUV and Light Truck Applications Design & Development of e-TurboTM for SUV and Light Truck Applications 2003 DEER Conference Presentation: Garrett...

98

Design and Development of e-Turbo for SUV and Light Truck Applications...  

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

Development of e-Turbo for SUV and Light Truck Applications Design and Development of e-Turbo for SUV and Light Truck Applications 2004 Diesel Engine Emissions Reduction (DEER)...

99

Proceedings of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air  

E-Print Network [OSTI]

Proceedings of GT2007 ASME Turbo Expo 2007: Power for Land, Sea and Air May 14-17, 2007, Montreal manuscript, published in "Proceedings of GT2007, ASME Turbo Expo, Canada (2007)" #12;INTRODUCTION The current

Paris-Sud XI, Université de

100

A study of Turbo Codes across Space Time Spreading Channel 1  

E-Print Network [OSTI]

This study looks at the use of Turbo Codes across a space time spreading (STS) channel in the absence of multi-path. For 3 and 5 iterations, turbo codes was shown to improve the BER by up to 3%.

Ibrahim S. Raad; Peter Vial; Tad Wysocki

Note: This page contains sample records for the topic "turbo dynamics university" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


101

Turbo ASL: Arterial Spin Labeling With Higher SNR and Temporal Resolution  

E-Print Network [OSTI]

Turbo ASL: Arterial Spin Labeling With Higher SNR and Temporal Resolution Eric C. Wong,* Wen the ASL SNR per image. We refer to this modified technique as turbo ASL. THEORY In pulsed ASL techniques

Sereno, Martin

102

Retrofit and Testing of a Pre-Turbo, Diesel Oxidation Catalyst...  

Broader source: Energy.gov (indexed) [DOE]

Retrofit and Testing of a Pre-Turbo, Diesel Oxidation Catalyst on a Tier 0, SD60M Freight Locomotive Achieving Over 50% PM Reduction Retrofit and Testing of a Pre-Turbo, Diesel...

103

Bubble Universe Dynamics After Free Passage  

E-Print Network [OSTI]

We consider bubble collisions in single scalar field theories with multiple vacua. Recent work has argued that at sufficiently high impact velocities, collisions between such bubble vacua are governed by 'free passage' dynamics in which field interactions can be ignored during the collision, providing a systematic process for populating local minima without quantum nucleation. We focus on the time period that follows the bubble collision and provide evidence that, for certain potentials, interactions can drive significant deviations from the free-passage bubble profile, thwarting the production of bubbles with different field values.

Pontus Ahlqvist; Kate Eckerle; Brian Greene

2014-12-26T23:59:59.000Z

104

Smooth Quantum Dynamics of Mixmaster Universe  

E-Print Network [OSTI]

We present a quantum version of the vacuum Bianchi IX model by implementing affine coherent state quantization combined with a Born-Oppenheimer-like adiabatic approximation. The analytical treatment is carried out on both quantum and semiclassical levels. The resolution of the classical singularity occurs by means of a repulsive potential generated by our quantization procedure. The quantization of the oscillatory degrees of freedom produces a radiation energy density term in the semiclassical constraint equation. The Friedmann-like lowest energy eigenstates of the system are found to be dynamically stable.

Bergeron, Hervé; Gazeau, Jean Pierre; Ma?kiewicz, Przemys?aw; Piechocki, W?odzimierz

2015-01-01T23:59:59.000Z

105

Improved Space-time Turbo Codes with Full Spatial Diversity over Integer Ring  

E-Print Network [OSTI]

Improved Space-time Turbo Codes with Full Spatial Diversity over Integer Ring Tae Min Kim and Jae-time turbo codes designed over integer ring for BPSK and QPSK modulation. The proposed spacetime turbo codes of 0.5 dB at FER of IO-$ over the space-time turbo codes with the iterative non-binary m a x i " D

Lee, Jae Hong

106

1 Copyright 2003 by ASME Proceedings of ASME Turbo Expo 2003  

E-Print Network [OSTI]

1 Copyright © 2003 by ASME Proceedings of ASME Turbo Expo 2003 Power for Land, Sea, and Air June 16

Roy, Subrata

107

Performance Analysis of 3-Dimensional Turbo Codes  

E-Print Network [OSTI]

In this work, we consider the minimum distance properties and convergence thresholds of 3-dimensional turbo codes (3D-TCs), recently introduced by Berrou et al.. Here, we consider binary 3D-TCs while the original work of Berrou et al. considered double-binary codes. In the first part of the paper, the minimum distance properties are analyzed from an ensemble perspective, both in the finite-length regime and in the asymptotic case of large block lengths. In particular, we analyze the asymptotic weight distribution of 3D-TCs and show numerically that their typical minimum distance dmin may, depending on the specific parameters, asymptotically grow linearly with the block length, i.e., the 3D-TC ensemble is asymptotically good for some parameters. In the second part of the paper, we derive some useful upper bounds on the dmin when using quadratic permutation polynomial (QPP) interleavers with a quadratic inverse. Furthermore, we give examples of interleaver lengths where an upper bound appears to be tight. The b...

Rosnes, Eirik

2011-01-01T23:59:59.000Z

108

Study of Turbo Coded OFDM over Fading Channel  

E-Print Network [OSTI]

Abstract––The main problems of reliable data communication in the wireless environment are the distorting multipath fading channel and Additive White Gaussian Noise (AWGN) noise. These impairments can distort the transmitted signal severely and thus leading to Inter Symbol Interference (ISI). So the reception becomes erroneous and the Bit Error Rate (BER) increases. Orthogonal Frequency Division Multiplexing (OFDM) or multicarrier communication is a recent technique used to mitigate ISI introduced by the distorting frequency selective fading channel. The earlier approaches used to combat ISI are based on Equalization and Maximum Likelihood Sequence Estimation (MLSE). Though MLSE is the optimum detector, its complexity grows exponentially with the channel length. Equalization has a low complexity but is suboptimal. OFDM essentially bridges the performance gap between MLSE and Equalization at a reasonable complexity. In this paper, we attempt to study the performance of uncoded and turbo coded OFDM signal transmitted through frequency selective Rayleigh fading channels having uniform power delay profile. The channel is assumed to be static for one OFDM symbol and varies randomly from one symbol to the next. Simulation results are presented for rate 1/3 and rate 1/2 turbo code. Keywords––Turbo codes, turbo encoder, fading channel, turbo decoder, MAP algorithm, likelihood ratio. I.

Suchita Chatterjee; Mangal Singh

109

Implementation of Iterative Map turbo Decoder on TMS320C40 DSP  

E-Print Network [OSTI]

iii Turbo coding is the latest channel coding technique. Because of the ability of turbo codes to provide very low bit error rates at low signal to noise ratios, turbo codes have a potential of being used in wireless communication applications...

Patil, Sunil S

2012-06-07T23:59:59.000Z

110

Optimum Frame Synchronization for Preamble-less Packet Transmission of Turbo Codes  

E-Print Network [OSTI]

Optimum Frame Synchronization for Preamble-less Packet Transmission of Turbo Codes Jian Sun introduces an optimum maximum a posteriori (MAP) frame synchronization method for packet- based turbo coded the received signal sequences. This method is based on the low- density parity-check properties of turbo codes

Valenti, Matthew C.

111

Packet Transmission with Turbo Codes over Fading Bartosz Mielczarek 1 and Arne Svensson 2  

E-Print Network [OSTI]

Packet Transmission with Turbo Codes over Fading Channels Bartosz Mielczarek 1 and Arne Svensson 2.se. Abstract This paper presents the main issues of using turbo coding schemes in wireless packet transmission it particu- larly suitable for packet transmission. 1 Introduction Turbo codes [1, 2] are one of the most

112

Power and Area Efficient Turbo Decoder Implementation for Mobile Wireless Systems  

E-Print Network [OSTI]

Power and Area Efficient Turbo Decoder Implementation for Mobile Wireless Systems J. H. Han1 , A. T Abstract-- The authors present a low power and area efficient turbo soft-input soft-output (SISO) decoder. Our turbo SISO decoder is based on trace back algorithm (TBA) and saves area and power by replacing

Arslan, Tughrul

113

The Distribution of Loop Lengths in Graphical Models for Turbo Decoding  

E-Print Network [OSTI]

1 The Distribution of Loop Lengths in Graphical Models for Turbo Decoding Xianping Ge, David model for a K = 6, N = 12, rate 1=2 turbo code. Abstract| This paper analyzes the distribution of loop lengths in graphical models for turbo decoding. The prop- erties of such loops are of signi#12;cant

Smyth, Padhraic

114

Performance of Turbo Coded WCDMA with Downlink Space Time Block Coding in Correlated Fading Channels  

E-Print Network [OSTI]

Performance of Turbo Coded WCDMA with Downlink Space Time Block Coding in Correlated Fading due to potential high data rate applications such as wireless internet access. Turbo codes. In this paper, we evaluate the performance of turbo coded WCDMA systems with downlink transmit diversity

Mandayam, Narayan

115

IEEE COMMUNICATIONS LETTERS, TO APPEAR 1 Soft-Decision COVQ for Turbo-Coded AWGN  

E-Print Network [OSTI]

IEEE COMMUNICATIONS LETTERS, TO APPEAR 1 Soft-Decision COVQ for Turbo-Coded AWGN and Rayleigh-decision channel-optimized vec- tor quantization (COVQ) scheme for Turbo-coded additive white Gaussian noise (AWGN) and Rayleigh fading chan- nels is proposed. The log likelihood ratio (LLR) gener- ated by the Turbo decoder

Linder, Tamás

116

Unified Convolutional/Turbo Decoder Architecture Design Based on Triple-Mode MAP/VA Kernel  

E-Print Network [OSTI]

Unified Convolutional/Turbo Decoder Architecture Design Based on Triple-Mode MAP/VA Kernel Fan convolutional/ turbo decoder design. According to the triple-mode MAP/VA timing chart and by merging some similar modules in both the Viterbi decoder and the log-MAP turbo code decoder, we build one unified

Hung, Shih-Hao

117

Stochastic decoding of Turbo Codes Quang Trung DONG, Matthieu ARZEL*, Christophe JEGO and Warren J. GROSS  

E-Print Network [OSTI]

1 Stochastic decoding of Turbo Codes Quang Trung DONG, Matthieu ARZEL*, Christophe JEGO and Warren the application of the stochastic decoding approach to the families of convolutional codes and turbo codes. It demonstrates that stochastic compu- tation is a promising solution to improve the data throughput of turbo

Paris-Sud XI, Université de

118

754 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 49, NO. 5, MAY 2001 Turbo-SPC Codes  

E-Print Network [OSTI]

754 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 49, NO. 5, MAY 2001 Turbo-SPC Codes Li Ping, Member, IEEE Abstract--This letter is concerned with a family of modified turbo-type codes, referred to as turbo-SPC (single parity check) codes. A technique based on the SPC code is introduced to re- place

Ping, Li

119

Butterfly and Benes-Based on-Chip Communication Networks for Multiprocessor Turbo Decoding  

E-Print Network [OSTI]

Butterfly and Benes-Based on-Chip Communication Networks for Multiprocessor Turbo Decoding Hazem interconnection networks as on-chip communication networks for parallel turbo decoding. Adapted Benes for all turbo code standards and constitutes a promising feature for their reuse for any similar

Muller, Olivier

120

Reed-Solomon Turbo Product Codes for Optical Communications: From Code Optimization to  

E-Print Network [OSTI]

1 Reed-Solomon Turbo Product Codes for Optical Communications: From Code Optimization to Decoder Design Rapha¨el Le Bidan, Camille Leroux, Christophe J´ego, Patrick Adde, Ramesh Pyndiah Abstract--Turbo. In this paper, we investi- gate the use of Reed-Solomon (RS) turbo product codes for 40 Gb/s transmission over

Paris-Sud XI, Université de

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121

Turbo Codes for Binary Markov Sources 1 Guang-Chong Zhu and Fady Alajaji  

E-Print Network [OSTI]

Turbo Codes for Binary Markov Sources 1 Guang-Chong Zhu and Fady Alajaji Dept. of Mathematics@mast.queensu.ca Abstract | The reliable transmission via Turbo codes of binary stationary ergodic Markov sources over noisy channels is investigated. The #12;rst con- stituent Turbo decoder is designed to exploit the source

Linder, Tamás

122

A Union Bound Approximation for Rapid Performance Evaluation of Punctured Turbo Codes  

E-Print Network [OSTI]

A Union Bound Approximation for Rapid Performance Evaluation of Punctured Turbo Codes Ioannis a simple technique to approximate the performance union bound of a punctured turbo code. The bound to calculate the most significant terms of the transfer function of a turbo encoder. We demonstrate that

Cambridge, University of

123

Improved Upper Bounds on the ML Decoding Error Probability of Parallel and Serial Concatenated Turbo  

E-Print Network [OSTI]

Turbo Codes via their Ensemble Distance Spectrum Igal Sason and Shlomo Shamai (Shitz) Department The ensemble performance of parallel and serial concatenated turbo codes is considered, where the ensemble enumeration functions of the ensembles of random parallel and serial concatenated turbo codes,the tangential

Sason, Igal

124

Bounds on the Error Probability of ML Decoding for Block and Turbo-Block Codes  

E-Print Network [OSTI]

Bounds on the Error Probability of ML Decoding for Block and Turbo-Block Codes Igal Sason 32000, Israel March 1999 Abstract The performance of either structured or random turbo-block codes on the other. We focus here on uniformly interleaved and parallel concatenated turbo-Hamming codes

Sason, Igal

125

A New Technique To Determine The Upper Threshold for Finite Length Turbo Codes  

E-Print Network [OSTI]

A New Technique To Determine The Upper Threshold for Finite Length Turbo Codes A.Rajeshand A in finite frame length turbo codes. These thresholds depend on the component encoder as well as the frame to indecisive and unequivocal fixed points respectively, for finiteframe length turbo codes. Concurrently, Gamal

Chaturvedi, A K

126

Layered Frequency-Domain Turbo Equalization for Single Carrier Broadband MIMO Systems  

E-Print Network [OSTI]

Layered Frequency-Domain Turbo Equalization for Single Carrier Broadband MIMO Systems Jian Zhang 72701, USA Abstract-- A new layered frequency-domain turbo equalization (LFDTE) scheme is proposed the respective advantages of layered detection and turbo equalization to further lower the bit error rate (BER

Zheng, Yahong Rosa

127

Turbo Codes are Low Density Parity Check Codes David J. C. MacKay  

E-Print Network [OSTI]

Turbo Codes are Low Density Parity Check Codes David J. C. MacKay July 8, 1998--- Draft 0.2, not for distribution! (First draft written July 5, 1998) Abstract Turbo codes and Gallager codes (also known as low note that the parity check matrix of a Turbo code can be written as low density parity check matrix

MacKay, David J.C.

128

IEEE COMMUNICATIONS LETTERS, VOL. 6, NO. 11, NOVEMBER 2002 503 Channel Reliability Estimation for Turbo Decoding  

E-Print Network [OSTI]

for Turbo Decoding in Rayleigh Fading Channels With Imperfect Channel Estimates Hyundong Shin, Student scheme of the channel reliability factor for turbo decoding in Rayleigh fading channels with imperfect channel estimates. The channel re- liability factor is required for iterative MAP decoding of turbo codes

Lee, Jae Hong

129

High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization  

E-Print Network [OSTI]

High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization J. H.Erdogan@ee.ed.ac.uk, Tughrul.Arslan@ee.ed.ac.uk Abstract The authors present a turbo soft-in soft-out (SISO) decoder based. The turbo decoder with the proposed technique has been synthesized to evaluate its power consumption

Arslan, Tughrul

130

CONCATENATED CODES BASED ON MULTIDIMENSIONAL PARITY-CHECK CODES AND TURBO CODES  

E-Print Network [OSTI]

CONCATENATED CODES BASED ON MULTIDIMENSIONAL PARITY-CHECK CODES AND TURBO CODES John M. Shea, Florida Abstract--Turbo-codes provide communications near capac- ity when very large interleavers (and parity-check code can be used as an outer code with a turbo code as an inner code in a serial

Wong, Tan F.

131

ASIP-Based Multiprocessor SoC Design for Simple and Double Binary Turbo Decoding  

E-Print Network [OSTI]

ASIP-Based Multiprocessor SoC Design for Simple and Double Binary Turbo Decoding Olivier Muller presents a new multiprocessor platform for high throughput turbo decoding. The proposed platform is based the recent shuffling technique introduced in the turbo-decoding field to reduce communication latency

Muller, Olivier

132

TDA Progress Report 42-122 August 15, 1995 Weight Distributions for Turbo Codes Using  

E-Print Network [OSTI]

TDA Progress Report 42-122 August 15, 1995 Weight Distributions for Turbo Codes Using Random takes a preliminary look at the weight distributions achievable for turbo codes using random, nonrandom to being foiled by higher-weight inputs. I. Introduction Turbo codes are constructed by applying two

Li, Tiffany Jing

133

Decoding Turbo-Like Codes via Linear Programming Jon Feldman David R. Karger  

E-Print Network [OSTI]

Decoding Turbo-Like Codes via Linear Programming Jon Feldman David R. Karger MIT Laboratory algorithm for decoding turbo-like codes based on linear programming. We prove that for the case of Repeat is the path corresponding to the original transmitted code word. 1 Introduction The introduction of turbo

134

EXIT Chart Analysis of Turbo-BLAST Receivers in Rayleigh Fading Channels  

E-Print Network [OSTI]

EXIT Chart Analysis of Turbo-BLAST Receivers in Rayleigh Fading Channels Wenjun Li and Huaiyu Dai: Wli5@ncsu.edu, Huaiyu Dai@ncsu.edu Abstract-- Turbo-BLAST is an advanced space-time layered with Turbo-BLAST to combat the co-channel interference (CCI) and significantly improve the performance

Dai, Huaiyu

135

High-Throughput Contention-Free Concurrent Interleaver Architecture for Multi-Standard Turbo Decoder  

E-Print Network [OSTI]

High-Throughput Contention-Free Concurrent Interleaver Architecture for Multi-Standard Turbo paral- lel turbo decoder architectures have been developed. However, the interleaver has become a major that can efficiently solve the memory conflict problem for parallel turbo decoders with very high

Mellor-Crummey, John

136

Turbo-SMT: Accelerating Coupled Sparse Matrix-Tensor Factorizations by 200x  

E-Print Network [OSTI]

Turbo-SMT: Accelerating Coupled Sparse Matrix-Tensor Factorizations by 200x Evangelos E maintaining good accuracy? We intro- duce Turbo-SMT, a meta-method capable of doing exactly that: it boosts, with comparable accuracy to the baseline. We apply Turbo-SMT to BrainQ, a dataset consisting of a (nouns, brain

137

Turbo Pump Magnetic Shielding Analysis NSTX-CALC-24-04-00  

E-Print Network [OSTI]

NSTX Turbo Pump Magnetic Shielding Analysis NSTX-CALC-24-04-00 March 16, 2011 Prepared By turbo pump to reduce the fringe field from NSTX coils at the pump location to below 50 gauss to be at least 12 inches longer than the pump (6 inches above the top and below the bottom of the turbo pump

Princeton Plasma Physics Laboratory

138

ITW2003, Paris, France, March 31 April 4, 2003 Punctured Turbo Code Ensembles  

E-Print Network [OSTI]

ITW2003, Paris, France, March 31 ­ April 4, 2003 Punctured Turbo Code Ensembles Ruoheng Liu the asymptotic performance of punctured turbo codes. The analysis is based on the union bound on the word error probability of maximum likelihood decoding for a punctured turbo code ensem- bles averaged over all possible

Soljanin, Emina

139

IEEE VEHICULAR TECHNOLOGY CONFERENCE SPRING, 2003 1 Space-Time Block Coding applied to Turbo Coded  

E-Print Network [OSTI]

IEEE VEHICULAR TECHNOLOGY CONFERENCE SPRING, 2003 1 Space-Time Block Coding applied to Turbo Coded and a Turbo Code (TC) as channel code. MC-CDMA is likely to be one of the most promising access technique. Then, since Turbo Coded MC-CDMA was demonstrated to be very efficient for a Single Input Single Output

Paris-Sud XI, Université de

140

The Augmented State Diagram and its Application to Convolutional and Turbo Codes  

E-Print Network [OSTI]

1 The Augmented State Diagram and its Application to Convolutional and Turbo Codes Ioannis Abstract Convolutional block codes, which are commonly used as constituent codes in turbo code configu code. In the case of a turbo code, we can readily calculate an upper bound to its bit error rate

Cambridge, University of

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


141

Parallel Interleaver Architecture with New Scheduling Scheme for High Throughput Configurable Turbo Decoder  

E-Print Network [OSTI]

Parallel Interleaver Architecture with New Scheduling Scheme for High Throughput Configurable Turbo}@rice.edu, yuanbinguo@huawei.com Abstract--Parallel architecture is required for high throughput turbo decoder to meet also shows great flexibility and scalability compared to prior work. Index Terms--VLSI, turbo decoder

Mellor-Crummey, John

142

Priberam: A Turbo Semantic Parser with Second Order Features Andre F. T. Martins  

E-Print Network [OSTI]

Priberam: A Turbo Semantic Parser with Second Order Features Andr´e F. T. Martins Mariana S. C a recently pro- posed dependency parser, TurboParser (Martins et al., 2010, 2013), to be able to perform). The result is TurboSemanticParser, which we re- lease as open-source software.1 We describe here a second

Murphy, Robert F.

143

Highly Scalable On-the-Fly Interleaved Address Generation for UMTS/HSPA+ Parallel Turbo Decoder  

E-Print Network [OSTI]

Highly Scalable On-the-Fly Interleaved Address Generation for UMTS/HSPA+ Parallel Turbo Decoder@huawei.com Abstract-- High throughput parallel interleaver design is a major challenge in designing parallel turbo the silicon area and frequency is improved compared to recent related works. Keywords--Turbo decoder

Mellor-Crummey, John

144

The Minimum Distance of Turbo-Like Codes Louay Bazzi, Mohammad Mahdian, Daniel A. Spielman  

E-Print Network [OSTI]

1 The Minimum Distance of Turbo-Like Codes Louay Bazzi, Mohammad Mahdian, Daniel A. Spielman Abstract--Worst-case upper bounds are derived on the minimum distance of parallel concatenated Turbo codes that parallel-concatenated Turbo codes and repeat-convolute codes with sub-linear memory are asymptotically bad

Spielman, Daniel A.

145

174 IEEE COMMUNICATIONS LETTERS, VOL. 8, NO. 3, MARCH 2004 Modified LMMSE Turbo Equalization  

E-Print Network [OSTI]

174 IEEE COMMUNICATIONS LETTERS, VOL. 8, NO. 3, MARCH 2004 Modified LMMSE Turbo Equalization Sen a modified linear minimum mean square error (LMMSE) turbo equalization scheme that uses an augmented real retaining a complexity similar to that of the existing LMMSE turbo equalization scheme. Index Terms

Ping, Li

146

Linear Equalizers for Turbo Equalization A New Optimization Criterion for Determining the Equalizer Taps  

E-Print Network [OSTI]

Linear Equalizers for Turbo Equalization A New Optimization Criterion for Determining the Equalizer: This paper investigates the subject of turbo equalizations in which a receiver combines the equalization for parallel-concatenated turbo code with BPSK modulation over channels that introduce severe amplitude

Raphaeli, Dan

147

On the higher ef ciency of parallel Reed-Solomon turbo-decoding  

E-Print Network [OSTI]

On the higher ef ciency of parallel Reed-Solomon turbo-decoding Camille LEROUX, Christophe JEGO.lastname@telecom-bretagne.eu Abstract-- In this paper, we demonstrate the higher hardware ef ciency of Reed-Solomon (RS) parallel turbo decoding compared with BCH parallel turbo decoding. Based on an innovative ar- chitecture, this is the rst

Paris-Sud XI, Université de

148

SWITCHING LMS LINEAR TURBO EQUALIZATION Seok-Jun Lee, Andrew C. Singer, and Naresh R. Shanbhag  

E-Print Network [OSTI]

SWITCHING LMS LINEAR TURBO EQUALIZATION Seok-Jun Lee, Andrew C. Singer, and Naresh R. Shanbhag-Champaign 1308 West Main Street, Urbana, IL 61801 Email: [slee6,acsinger,shanbhag]@uiuc.edu ABSTRACT Turbo symbol for each iteration. In this paper, we consider a class of turbo equal- ization algorithms in which

Singer, Andrew C

149

Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems  

E-Print Network [OSTI]

This paper addresses the issue of phase noise in OFDM systems. Phase noise (PHN) is a transceiver impairment resulting from the non-idealities of the local oscillator. We present a case for designing a turbo receiver for systems corrupted by phase noise by taking a closer look at the effects of the common phase error (CPE). Using an approximate probabilistic framework called variational inference (VI), we develop a soft-in soft-out (SISO) algorithm that generates posterior bit-level soft estimates while taking into account the effect of phase noise. The algorithm also provides an estimate of the phase noise sequence. Using this SISO algorithm, a turbo receiver is designed by passing soft information between the SISO detector and an outer forward error correcting (FEC) decoder that uses a soft decoding algorithm. It is shown that the turbo receiver achieves close to optimal performance.

Sridharan, Gokul

2010-01-01T23:59:59.000Z

150

Low Complexity Turbo-Equalization: A Clustering Approach  

E-Print Network [OSTI]

We introduce a low complexity approach to iterative equalization and decoding, or "turbo equalization", that uses clustered models to better match the nonlinear relationship that exists between likelihood information from a channel decoder and the symbol estimates that arise in soft-input channel equalization. The introduced clustered turbo equalizer uses piecewise linear models to capture the nonlinear dependency of the linear minimum mean square error (MMSE) symbol estimate on the symbol likelihoods produced by the channel decoder and maintains a computational complexity that is only linear in the channel memory. By partitioning the space of likelihood information from the decoder, based on either hard or soft clustering, and using locally-linear adaptive equalizers within each clustered region, the performance gap between the linear MMSE equalizer and low-complexity, LMS-based linear turbo equalizers can be dramatically narrowed.

Kim, Kyeongyeon; Kozat, Suleyman S; Singer, Andrew C

2012-01-01T23:59:59.000Z

151

Soft-Decision-Driven Channel Estimation for Pipelined Turbo Receivers  

E-Print Network [OSTI]

We consider channel estimation specific to turbo equalization for multiple-input multiple-output (MIMO) wireless communication. We develop a soft-decision-driven sequential algorithm geared to the pipelined turbo equalizer architecture operating on orthogonal frequency division multiplexing (OFDM) symbols. One interesting feature of the pipelined turbo equalizer is that multiple soft-decisions become available at various processing stages. A tricky issue is that these multiple decisions from different pipeline stages have varying levels of reliability. This paper establishes an effective strategy for the channel estimator to track the target channel, while dealing with observation sets with different qualities. The resulting algorithm is basically a linear sequential estimation algorithm and, as such, is Kalman-based in nature. The main difference here, however, is that the proposed algorithm employs puncturing on observation samples to effectively deal with the inherent correlation among the multiple demappe...

Yoon, Daejung

2011-01-01T23:59:59.000Z

152

Designing Nonlinear Turbo Codes with a Target Ones Density  

E-Print Network [OSTI]

Certain binary asymmetric channels, such as Z-channels in which one of the two crossover probabilities is zero, demand optimal ones densities different from 50%. Some broadcast channels, such as broadcast binary symmetric channels (BBSC) where each component channel is a binary symmetric channel, also require a non-uniform input distribution due to the superposition coding scheme, which is known to achieve the boundary of capacity region. This paper presents a systematic technique for designing nonlinear turbo codes that are able to support ones densities different from 50%. To demonstrate the effectiveness of our design technique, we design and simulate nonlinear turbo codes for the Z-channel and the BBSC. The best nonlinear turbo code is less than 0.02 bits from capacity.

Wang, Jiadong; Chen, Tsung-Yi; Xie, Bike; Wesel, Richard

2011-01-01T23:59:59.000Z

153

2490 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 50, NO. 10, OCTOBER 2004 Performance Analysis of Turbo-SPC Codes  

E-Print Network [OSTI]

of Turbo-SPC Codes Keying Wu, Student Member, IEEE, Li Ping, Member, IEEE, Xiaoling Huang, and Nam Phamdo, Senior Member, IEEE Abstract--This correspondence concerns the performance analysis of turbo used in turbo-SPC codes is discussed. It is shown that simple two- or four-state turbo-SPC codes

Ping, Li

154

EXIT Charts for Turbo Trellis Coded Modulation Hangjun Chen, Student Member, IEEE, and Alexander Haimovich, Senior Member, IEEE  

E-Print Network [OSTI]

EXIT Charts for Turbo Trellis Coded Modulation Hangjun Chen, Student Member, IEEE, and Alexander information transfer charts (EXIT) method to the analysis of the convergence of turbo codes to turbo trellis can be used as a tool in the design of TTCM. Index Terms-- Turbo trellis coded modulation, convergence

Haimovich, Alexander

155

Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers  

Broader source: Energy.gov [DOE]

This fact sheet describes a supercritical carbon dioxide turbo-expander and heat exchangers project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Southwest Research Institute, is working to develop a megawatt-scale s-CO2 hot-gas turbo-expander optimized for the highly transient solar power plant profile. The team is also working to optimize novel printed circuit heat exchangers for s-CO2 applications to drastically reduce their manufacturing costs.

156

The minimum distance of classical and quantum turbo-codes  

E-Print Network [OSTI]

We present a theory of quantum stabilizer turbo-encoders with unbounded minimum distance. This theory is presented under a framework common to both classical and quantum turbo-encoding theory. The main conditions to have an unbounded minimum distance are that the inner seed encoder has to be recursive, and either systematic or with a totally recursive truncated decoder. This last condition has been introduced in order to obtain a theory viable in the quantum stabilizer case, since it was known that in this case the inner seed encoder could not be recursive and systematic in the same time.

Abbara, Mamdouh

2011-01-01T23:59:59.000Z

157

Precoded Turbo Equalizer for Power Line Communication Systems  

E-Print Network [OSTI]

Power line communication continues to draw increasing interest by promising a wide range of applications including cost-free last-mile communication solution. However, signal transmitted through the power lines deteriorates badly due to the presence of severe inter-symbol interference (ISI) and harsh random pulse noise. This work proposes a new precoded turbo equalization scheme specifically designed for the PLC channels. By introducing useful precoding to reshape ISI, optimizing maximum {\\it a posteriori} (MAP) detection to address the non-Gaussian pulse noise, and performing soft iterative decision refinement, the new equalizer demonstrates a gain significantly better than the existing turbo equalizers.

Xie, Kai; Li,

2010-01-01T23:59:59.000Z

158

The minimum distance of classical and quantum turbo-codes  

E-Print Network [OSTI]

We present a theory of quantum stabilizer turbo-encoders with unbounded minimum distance. This theory is presented under a framework common to both classical and quantum turbo-encoding theory. The main conditions to have an unbounded minimum distance are that the inner seed encoder has to be recursive, and either systematic or with a totally recursive truncated decoder. This last condition has been introduced in order to obtain a theory viable in the quantum stabilizer case, since it was known that in this case the inner seed encoder could not be recursive and systematic in the same time.

Mamdouh Abbara; Jean-Pierre Tillich

2011-09-01T23:59:59.000Z

159

Improving Turbocharged Diesel Engine Operation with Turbo Power Assist System  

E-Print Network [OSTI]

Improving Turbocharged Diesel Engine Operation with Turbo Power Assist System I. Kolmanovsky A. G. In this pa- per we investigate the coupling of a power assist system at the turbocharger shaft of a diesel representation of a diesel engine with a turbocharger power assist system. A turbocharger power assist system

Stefanopoulou, Anna

160

The dynamics of universe for exponential decaying dark energy  

E-Print Network [OSTI]

In this study we consider an exponential decaying form for dark energy as EoS parameter in order to discuss the dynamics of the universe. Firstly, assuming that universe is filled with an ideal fluid which consists of exponential decaying dark energy we obtain time dependent behavior of several physical quantities such as energy density, pressure and others for dark energy, dark energy-matter coupling and non-coupling cases. Secondly, using scalar field instead of an ideal fluid we obtain these physical quantities in terms of scalar potential and kinetic term for the same cases in scalar-tensor formalism. Finally we show that ideal fluid and scalar-tensor description of dark energy give mathematically equivalent results for this EoS parameter.

Bostan, Nilay

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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

De Sitter Universe from Causal Dynamical Triangulations without Preferred Foliation  

E-Print Network [OSTI]

We present a detailed analysis of a recently introduced version of Causal Dynamical Triangulations (CDT) that does not rely on a distinguished time slicing. Focussing on the case of 2+1 spacetime dimensions, we analyze its geometric and causal properties, present details of the numerical set-up and explain how to extract "volume profiles". Extensive Monte Carlo measurements of the system show the emergence of a de Sitter universe on large scales from the underlying quantum ensemble, similar to what was observed previously in standard CDT quantum gravity. This provides evidence that the distinguished time slicing of the latter is not an essential part of its kinematical set-up.

S. Jordan; R. Loll

2013-07-20T23:59:59.000Z

162

ALERTEES PAR LA MORT CELLULAIRE, NOS DEFENSES ANTIVIRALES METTENT LE TURBO  

E-Print Network [OSTI]

MORT CELLULAIRE, NOS DEFENSES ANTIVIRALES METTENT LE TURBO Genève, le 9 février 2012 SOUS EMBARGO JUSQU

Loewith, Robbie

163

University of Maryland component of the Center for Multiscale Plasma Dynamics: Final Technical Report  

SciTech Connect (OSTI)

The Center for Multiscale Plasma Dynamics (CMPD) was a five-year Fusion Science Center. The University of Maryland (UMD) and UCLA were the host universities. This final technical report describes the physics results from the UMD CMPD.

Dorland, William [University of Maryland

2014-11-18T23:59:59.000Z

164

SWITCHING METHODS FOR LINEAR TURBO EQUALIZATION Seok-Jun Lee, Naresh R. Shanbhag, and Andrew C. Singer  

E-Print Network [OSTI]

SWITCHING METHODS FOR LINEAR TURBO EQUALIZATION Seok-Jun Lee, Naresh R. Shanbhag, and Andrew C,acsinger]@uiuc.edu ABSTRACT In this paper, several switching methods are presented for a class of switching turbo equalization the best bit error rate (1.5dB processing gain at 10-4 ) with low complexity. 1. INTRODUCTION The turbo

Singer, Andrew C

165

Interleaver Design for Turbo Codes H. R. Sadjadpour, N. J. A. Sloane, M. Salehi, and G. Nebe  

E-Print Network [OSTI]

1 Interleaver Design for Turbo Codes H. R. Sadjadpour, N. J. A. Sloane, M. Salehi, and G. Nebe H DRAFT #12; 2 Abstract The performance of a Turbo code with short block length depends critically corresponding to its parity bits. This paper describes a new interleaver design for Turbo codes with short block

Sloane, Neil J. A.

166

2570 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 58, NO. 5, MAY 2012 The Performance of Serial Turbo Codes  

E-Print Network [OSTI]

Turbo Codes Does Not Concentrate Federica Garin, Giacomo Como, and Fabio Fagnani Abstract--Minimum distances and maximum likelihood error probabilities of serial turbo codes with uniform interleaver are an, the minimum distance of se- rial turbo codes grows as a positive power of their block-length, while

Como, Giacomo

167

Performance of Turbo Product Codes on the Multiple-Access Relay Channel with Relatively Poor Source-Relay Links  

E-Print Network [OSTI]

Performance of Turbo Product Codes on the Multiple-Access Relay Channel with Relatively Poor Source.amis}@telecom-bretagne.eu Abstract--In this paper, we study a cooperative coding scheme based on turbo product codes where a number by the turbo decoder. The error performance under the degraded source-relay channel condition is shown

Paris-Sud XI, Université de

168

2212 IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 46, NO. 6, SEPTEMBER 2000 The Super-Trellis Structure of Turbo Codes  

E-Print Network [OSTI]

-Trellis Structure of Turbo Codes Marco Breiling, Student Member, IEEE, and Lajos Hanzo, Senior Member, IEEE Abstract--In this contribution we derive the super-trellis structure of turbo codes. We show that this structure and its associated decoding com- plexity depend strongly on the interleaver applied in the turbo encoder. We provide

Verdú, Sergio

169

IEEE COMMUNICATIONS LETTERS, VOL. 5, NO. 6, JUNE 2001 257 Soft-Decision COVQ for Turbo-Coded AWGN and  

E-Print Network [OSTI]

IEEE COMMUNICATIONS LETTERS, VOL. 5, NO. 6, JUNE 2001 257 Soft-Decision COVQ for Turbo-Coded AWGN-decision channel-optimized vector quantization (COVQ) scheme for Turbo-coded additive white Gaussian noise (AWGN) and Rayleigh fading channels is pro- posed. The log likelihood ratio (LLR) generated by the Turbo decoder

Alajaji, Fady

170

160 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 16, NO. 2, FEBRUARY 1998 Design and Analysis of Turbo  

E-Print Network [OSTI]

and Analysis of Turbo Codes on Rayleigh Fading Channels Eric K. Hall and Stephen G. Wilson, Member, IEEE Abstract--The performance and design of turbo codes using coherent BPSK signaling on the Rayleigh fading turbo coding systems. For higher signal- to-noise regions beyond simulation capabilities, an average

Wilson, Stephen G.

171

1932 IEEE TRANSACTIONS ON MAGNETICS, VOL. 37, NO. 4, JULY 2001 On the Performance of Turbo Product Codes over  

E-Print Network [OSTI]

1932 IEEE TRANSACTIONS ON MAGNETICS, VOL. 37, NO. 4, JULY 2001 On the Performance of Turbo Product. Georghiades Abstract--This paper evaluates the performance of single-parity check turbo product codes (TPC with PR4/EPR4 channels with proper precoding and with turbo equalization. Gains of 4.5 to 5 d

Li, Tiffany Jing

172

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 19, NO. 5, MAY 2001 831 Interleaver Design for Turbo Codes  

E-Print Network [OSTI]

for Turbo Codes Hamid R. Sadjadpour, Senior Member, IEEE, Neil J. A. Sloane, Fellow, IEEE, Masoud Salehi, and Gabriele Nebe Abstract--The performance of a Turbo code with short block length depends critically corresponding to its parity bits. This paper describes a new interleaver design for Turbo codes with short block

Sadjadpour, Hamid

173

Interleaver Design for Turbo Codes H. R. Sadjadpour, N. J. A. Sloane, M. Salehi, and G. Nebe  

E-Print Network [OSTI]

1 Interleaver Design for Turbo Codes H. R. Sadjadpour, N. J. A. Sloane, M. Salehi, and G. Nebe H DRAFT #12;2 Abstract The performance of a Turbo code with short block length depends critically corresponding to its parity bits. This paper describes a new interleaver design for Turbo codes with short block

Sloane, Neil J. A.

174

5506 IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 55, NO. 11, NOVEMBER 2007 On the New Stopping Criteria of Iterative Turbo  

E-Print Network [OSTI]

Criteria of Iterative Turbo Decoding by Using Decoding Threshold Fan-Min Li and An-Yeu (Andy) Wu, Member--Decoding threshold, early termination (ET), extrinsic information transform (EXIT) chart, iterative decoding, turbo codes, turbo principle. I. INTRODUCTION IN 1993, a new class of forward-error-correction (FEC) code

Hung, Shih-Hao

175

1776 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 18, NO. 12, DECEMBER 2000 BER Performance of Turbo-Coded PPM CDMA  

E-Print Network [OSTI]

1776 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 18, NO. 12, DECEMBER 2000 BER Performance of Turbo Abstract--We obtain upper bounds on the bit error rate (BER) for turbo-coded optical code-division multiple noise, and multi-user interference using a Gaussian approximation. We compare the performance of turbo

Kahn, Joseph M.

176

Die MAN Diesel & Turbo sucht am Standort Augsburg fr den Bereich Strategie/Unternehmensentwicklung zum frhestmglichen Eintrittstermin eine/n  

E-Print Network [OSTI]

Die MAN Diesel & Turbo sucht am Standort Augsburg für den Bereich Strategie Projekte. Als Stabsfunktion berichtet die Abteilung direkt an den Vorstand von MAN Diesel & Turbo SE. Wir Diesel & Turbo ist weltweit führender Anbieter von Gro�dieselmotoren und Turbomaschinen für maritime und

Stein, Oliver

177

1 Copyright 2009 by ASME Proceedings of ASME Turbo Expo 2009  

E-Print Network [OSTI]

1 Copyright © 2009 by ASME Proceedings of ASME Turbo Expo 2009: Power for Land, Sea, and Air GT2009,4,5] ingested. Proceedings of ASME Turbo Expo 2009: Power for Land, Sea and Air GT2009 June 8-12, 2009, Orlando, Florida, USA GT2009-60199 #12;2 Copyright © 2009 by ASME While there are many particle separation methods

Thole, Karen A.

178

Detection of renal ischemic lesions using Gd-DTPA enhanced turbo FLASH MRI: Experimental and clinical results  

SciTech Connect (OSTI)

Our goal was to investigate the role of Gd-DTPA-enhanced dynamic MRI in the evaluation of renal ischemic lesions. With a turbo FLASH sequence before and after injection of Gd-DTPA, nine foxhound dogs after 60-120 min of renal ischemia underwent MR examination. In addition, five patients with a tumor in a solitary kidney were examined before and after nephron-sparing renal surgery to evaluate renal perfusion and function. The experimental and clinical findings were correlated with conventional measurements of kidney function and with histological findings. Complete renal ischemia leads to a poor corticomedullary differentiation in Gd-DTPA-enhanced turbo FLASH MRI. The signal-intensity-versus-time plots of kidneys with significant postischemic changes show a less steep increase of signal intensity in the cortex and a steeper increase of signal intensity in the medulla than those of normal kidneys. Dynamic MRI demonstrate renal morphology and reflect the functional status of the renal vasculature. 21 refs., 8 figs., 1 tab.

Vosshenrich, R.; Fischer, U.; Funke, M.; Kopka, L.; Grabbe, E. [Univ. of Goettingen (Germany)] [and others] [Univ. of Goettingen (Germany); and others

1996-03-01T23:59:59.000Z

179

Can Punctured Rate-1/2 Turbo Codes Achieve a Lower Error Floor than their Rate-1/3 Parent Codes?  

E-Print Network [OSTI]

Can Punctured Rate-1/2 Turbo Codes Achieve a Lower Error Floor than their Rate-1/3 Parent Codes of punctured parallel concatenated convolutional codes (PCCCs), also known as punctured turbo codes, has also/3 turbo code results in better high-rate turbo codes, in terms of BEP performance, than puncturing only

Cambridge, University of

180

Dynamic Particle System for Mesh Extraction on the GPU University of Utah  

E-Print Network [OSTI]

@sci.utah.edu Charles Hansen University of Utah Salt Lake City, UT, USA hansen@cs.utah.edu ABSTRACT ExtractingDynamic Particle System for Mesh Extraction on the GPU Mark Kim University of Utah Salt Lake City, UT, USA mbk@cs.utah.edu Guoning Chen University of Utah Salt Lake City, UT, USA chengu

Utah, University of

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181

Copyright A. J. Millis 2013 Columbia University Dynamical Mean Field Theory  

E-Print Network [OSTI]

Copyright A. J. Millis 2013 Columbia University Dynamical Mean Field Theory Antoine Georges http://phys.columbia.edu/~millis/MillisTLH.pdf #12;Copyright A. J. Millis 2013 Columbia University on interactions I #12;Copyright A. J. Millis 2013 Columbia University Example Second order term Hubbard model 1 2

Millis, Andrew

182

TurboTech Precision Engineering Private Limited | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen,LtdInformationTulsa, Oklahoma: EnergyTunisia:Tuori SolarTurboTech

183

Pseudocodewords of Linear Programming Decoding of 3-Dimensional Turbo Codes  

E-Print Network [OSTI]

In this work, we consider pseudocodewords of (relaxed) linear programming (LP) decoding of 3-dimensional turbo codes (3D-TCs), recently introduced by Berrou et al.. Here, we consider binary 3D-TCs while the original work of Berrou et al. considered double-binary codes. We present a relaxed LP decoder for 3D-TCs, which is an adaptation of the relaxed LP decoder for conventional turbo codes proposed by Feldman in his thesis. The vertices of this relaxed polytope are the pseudocodewords. We show that the support set of any pseudocodeword is a stopping set of iterative decoding of 3D-TCs using maximum a posteriori constituent decoders on the binary erasure channel. Furthermore, we present a numerical study of small block length 3D-TCs, which shows that typically the minimum pseudoweight (on the additive white Gaussian noise (AWGN) channel) is smaller than both the minimum distance and the stopping distance. In particular, we performed an exhaustive search over all interleaver pairs in the 3D-TC based on quadratic...

Rosnes, Eirik; Amat, Alexandre Graell i

2011-01-01T23:59:59.000Z

184

Cooling system of an internal combustion engine having a turbo-charger  

SciTech Connect (OSTI)

A cooling system of an internal combustion engine is described having a turbo-charger, comprising a cooling water circulation passageway filled with cooling water for cooling the engine including at least a cylinder head cooling portion, a cooling water circulation passageway for cooling the turbo-charger including a turbo-charger cooling portion, and means for supplying a part of the engine cooling water to the turbo-charger cooling water ciruclation passageway and returning it from there to the engine cooling water cirulation passageway, characterized in that the turbo-charger cooling portion is positioned at the same level or higher than the cylinder head cooling portion of the engine, the turbo-charger cooling water circulation passageway includes a water volume positioned at a level higher than the turbo-charger cooling portion. The volume is connected to a cooling water reservoir tank via a pressure relief valve which is opened when pressure in the volume exceeds a predetermined value to supply cooling water to the volume.

Hasegawa, M.; Fukuda, T.

1986-09-02T23:59:59.000Z

185

Theory of universal fast orientational dynamics in the isotropic phase of liquid crystals  

E-Print Network [OSTI]

is also capable of examining the short distance scale and short time scale dynamics, and yields universal dynamical behavior in the isotropic phase of liquid crystals on ultrafast time scales and short distance scales. The theoretical development generates a temperature independent power law for the short

Fayer, Michael D.

186

Universal Science of Complexity: Consistent Understanding of Ecological, Living and Intelligent System Dynamics  

E-Print Network [OSTI]

A major challenge of interdisciplinary description of complex system behaviour is whether real systems of higher complexity levels can be understood with at least the same degree of objective, "scientific" rigour and universality as "simple" systems of classical, Newtonian science paradigm. The problem is reduced to that of arbitrary, many-body interaction (unsolved in standard theory). Here we review its causally complete solution, the ensuing concept of complexity and applications. The discovered key properties of dynamic multivaluedness and entanglement give rise to a qualitatively new kind of mathematical structure providing the exact version of real system behaviour. The extended mathematics of complexity contains the truly universal definition of dynamic complexity, randomness (chaoticity), classification of all possible dynamic regimes, and the unifying principle of any system dynamics and evolution, the universal symmetry of complexity. Every real system has a non-zero (and actually high) value of unreduced dynamic complexity determining, in particular, "mysterious" behaviour of quantum systems and relativistic effects causally explained now as unified manifestations of complex interaction dynamics. The observed differences between various systems are due to different regimes and levels of their unreduced dynamic complexity. We outline applications of universal concept of dynamic complexity emphasising cases of "truly complex" systems from higher complexity levels (ecological and living systems, brain operation, intelligence and consciousness, autonomic information and communication systems) and show that the urgently needed progress in social and intellectual structure of civilisation inevitably involves qualitative transition to unreduced complexity understanding (we call it "revolution of complexity").

Andrei P. Kirilyuk

2014-05-26T23:59:59.000Z

187

E-Print Network 3.0 - ag turbo turbotech Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

search results for: ag turbo turbotech Page: << < 1 2 3 4 5 > >> 1 ISlT 1997, Ulm, Germany, June 29 -July 4 New Tbrbo-Like Codes Summary: ISlT 1997, Ulm, Germany, June 29 -...

188

Retrofit and Testing of a Pre-Turbo, Diesel Oxidation Catalyst...  

Broader source: Energy.gov (indexed) [DOE]

Retrofit and Testing of a Pre-Turbo, Diesel Oxidation Catalyst on a Tier 0, SD60M Freight Locomotive Achieving Over 50% PM Reduction Don Newburry Research & Development Manager...

189

Analysis of cubic permutation polynomials for turbo codes  

E-Print Network [OSTI]

Quadratic permutation polynomials (QPPs) have been widely studied and used as interleavers in turbo codes. However, less attention has been given to cubic permutation polynomials (CPPs). This paper proves a theorem which states sufficient and necessary conditions for a cubic permutation polynomial to be a null permutation polynomial. The result is used to reduce the search complexity of CPP interleavers for short lengths (multiples of 8, between 40 and 256), by improving the distance spectrum over the set of polynomials with the largest spreading factor. The comparison with QPP interleavers is made in terms of search complexity and upper bounds of the bit error rate (BER) and frame error rate (FER) for AWGN channel. Cubic permutation polynomials leading to better performance than quadratic permutation polynomials are found for some lengths.

Trifina, Lucian

2011-01-01T23:59:59.000Z

190

A Survey on Space-Time Turbo Codes  

E-Print Network [OSTI]

As wireless communication systems look intently to compose the transition from voice communication to interactive Internet data, achieving higher bit rates becomes both increasingly desirable and challenging. Space-time coding (STC) is a communications technique for wireless systems that inhabit multiple transmit antennas and single or multiple receive antennas. Space-time codes make use of advantage of both the spatial diversity provided by multiple antennas and the temporal diversity available with time-varying fading. Space-time codes can be divided into block codes and trellis codes. Space-time trellis coding merges signal processing at the receiver with coding techniques appropriate to multiple transmit antennas. The advantages of space-time codes (STC) make it extremely remarkable for high-rate wireless applications. Initial STC research efforts focused on narrowband flat-fading channels. The decoding complexity of Space-time turbo codes STTC increases exponentially as a function of the diversity level ...

Seshaiah, C V

2010-01-01T23:59:59.000Z

191

The Center for Control, Dynamical Systems, and Computation University of California at Santa Barbara  

E-Print Network [OSTI]

The Center for Control, Dynamical Systems, and Computation University of California at Santa to learn about the biggest stories discussed on the web. About the Speaker: Carlos Guestrin's current and a Mechatronics Engineer degree from the University of São Paulo, Brazil. Carlos' work received awards at a number

Akhmedov, Azer

192

Dynamic synchronous/asynchronous replication ASSAF NATANZON,, EMC, Ben-Gurion University  

E-Print Network [OSTI]

A Dynamic synchronous/asynchronous replication ASSAF NATANZON,, EMC, Ben-Gurion University EITAN remotely even if not all previous writes have been Author's addresses: A. Natanzon EMC Corp., Herzlia, Israel and department of Computer Science, Ben- Gurion University, Beer-Sheva, Israel, 84105. assaf.natanzon@emc

Bachmat, Eitan

193

Dynamics of Bianchi I Universe with Magnetized Anisotropic Dark Energy  

E-Print Network [OSTI]

We study Bianchi type $I$ cosmological model in the presence of magnetized anisotropic dark energy. The energy-momentum tensor consists of anisotropic fluid with anisotropic EoS $p=\\omega{\\rho}$ and a uniform magnetic field of energy density $\\rho_B$. We obtain exact solutions to the field equations using the condition that expansion is proportional to the shear scalar. The physical behavior of the model is discussed with and without magnetic field. We conclude that universe model as well as anisotropic fluid do not approach isotropy through the evolution of the universe.

M. Sharif; M. Zubair

2010-05-25T23:59:59.000Z

194

Future EfficientDynamics with Heat Recovery  

Broader source: Energy.gov (indexed) [DOE]

fuel injection * DI2 lean stratified * Piezo injectors * High precision injection * Turbo * Twin turbo * Variable twin turbo * Downsizing * Gearbox efficiency * Gearbox...

195

Performance characteristics of a turbo expander substituted for expansion valve on air-conditioner  

SciTech Connect (OSTI)

An experimental study is conducted on a small turbo expander which could be applied to the expansion process in place of expansion valves in refrigerator or air-conditioner to improve the cycle efficiency by recovering energy from the throttling process. The operating gas is HFC134a and the maximum cooling capacity of experiment apparatus is 32.7 kW. Four different turbo expanders are tested to find the performance characteristics of the turbo expander when they operate at a low partial admission rate. The partial admission rate is 1.70% or 2.37, and expanders are operated in the supersonic flow. In the experiment, pressure and temperature are measured at 10 different locations in the experimental apparatus. In addition to these measurements, output power at the turbo expander is measured through a generator installed on a rotor shaft with the rotational speed. Performance data of the turbo expander are obtained at many part load operations by adjusting the output power of the generator. A maximum of 15.8% total-to-static efficiency is obtained when the pressure ratio and the partial admission ratio are 2.37 and 1.70%, respectively. Experimental results show that the optimal velocity ratio decreases when the pressure ratio is decreased, and peak efficiencies, which are obtained at locally maximized efficiency depending on the operating condition, vary linearly against the subcooling temperature or the pressure ratio. (author)

Cho, Soo-Yong [Department of Mechanical and Aerospace Engineering (ReCAPT), Gyeongsang National University, 900 Gajoa-dong, Jinju 660-701 (Korea); Cho, Chong-Hyun [School of Mechanical and Aerospace Engineering, Gyeongsang National University, 900 Gajoa-dong, Jinju 660-701 (Korea); Kim, Chaesil [Department of Mechanical Engineering, Changwon National University, 9 Sarim-dong, Changwon 641-773 (Korea)

2008-09-15T23:59:59.000Z

196

1238 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 52, NO. 8, AUGUST 2004 An Improved Two-State Turbo-SPC Code for Wireless Communication Systems  

E-Print Network [OSTI]

1238 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 52, NO. 8, AUGUST 2004 An Improved Two-State Turbo-SPC as special two-state turbo single-parity-check (SPC) codes [4]. For rates and nearly all code lengths, CT been devised in [5] based on Hadamard codes. The problem can also be treated using turbo-SPC codes [4

Ping, Li

197

1358 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 16, NO. 10, OCTOBER 2008 Unified Convolutional/Turbo Decoder Design Using  

E-Print Network [OSTI]

2008 Unified Convolutional/Turbo Decoder Design Using Tile-Based Timing Analysis of VA/MAP Kernel Fan the advanced forward-error-correction (FEC) standards, in which the Convolutional code and Turbo code may co-exit, a prototype design of a unified Convolutional/Turbo decoder is proposed. In this paper, we systematically

Hung, Shih-Hao

198

HSPA+/LTE-A Turbo Decoder on GPU and Multicore CPU Michael Wu, Guohui Wang, Bei Yin, Christoph Studer, and Joseph R. Cavallaro  

E-Print Network [OSTI]

HSPA+/LTE-A Turbo Decoder on GPU and Multicore CPU Michael Wu, Guohui Wang, Bei Yin, Christoph implementations of re- configurable and high-throughput turbo decoders. The first implementation is optimized Bridge processor. Both implementations support max-log-MAP and log-MAP turbo decoding algorithms, various

Mellor-Crummey, John

199

IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 52, NO. 4, APRIL 2006 1739 [11] S. N. Crozier, "New high-spread high-distance interleavers for turbo-  

E-Print Network [OSTI]

high-spread high-distance interleavers for turbo- codes," in Proc. 20th Bienn. Symp. Communications-memory inter- leaver banks for turbo-codes," in Proc.54th IEEE Vehicular Technology Conf. (VTC'01), Atlantic City, NJ, Oct. 2001, pp. 2394­2398. [13] D. Divsalar and F. Pollara, "Turbo codes for PCS applications

No, Jong-Seon

200

Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air June 14-18, 2010, Glasgow, UK  

E-Print Network [OSTI]

Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air GT2010 June 14-18, 2010, Glasgow approach for power generation with CO2 capture and storage [1]. In this process, the fuel is burned in pure by ASME hal-00497963,version1-6Jul2010 Author manuscript, published in "ASME Turbo Expo 2010, United

Paris-Sud XI, Université de

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


201

A Study on the Effectiveness of Turbo Equalization with FEC for Nonlinearity Compensation in Coherent WDM Transmissions  

E-Print Network [OSTI]

We evaluate the performance improvement in the presence of fiber nonlinearity obtained using a Turbo equalizer. Numerical simulation shows that Turbo equalization offers an improvement of 0.8 dB in a 100 Gb/s NZ-DSF transmission, even with only 5 taps for the MAP estimation. I.

Takafumi Fujimori; Toshiaki Koike-akino; Takashi Sugihara

202

The Distribution of Loop Lengths in Graphical Models for Turbo Decoding  

E-Print Network [OSTI]

1 The Distribution of Loop Lengths in Graphical Models for Turbo Decoding Xianping Ge, David ¢¡£ ¢¡ ¡ ¤¡¥ ¢¡¦ ¢¡§ ¤¡¨ © £ © ¡ © ¥ © ¦ © § © ¨ £ £ £ ¡ £ ¥ £ ¦ £ § £ ¨ ¦ £ ¡ ¦ £ ¡ £ ¡ ¥ § ¨ £ ££ £ ¡ ¥ § ¨ £ ££ Fig. 1 The ADG model for a K = 6, N = 12, rate 1/2 turbo code. Abstract-- This paper analyzes the distribution of loop lengths in graphical models for turbo decoding. The prop- erties of such loops

Smyth, Padhraic

203

Galaxy Dynamics: from the Early Universe to the Present ASP Conference Series, Vol. in press, 1999  

E-Print Network [OSTI]

Galaxy Dynamics: from the Early Universe to the Present ASP Conference Series, Vol. in press, 1999 be fitted well by a constant mass­to­light ratio (M/L) model but 7/10 require additional mass, and then fit to the measured oe and h 4 by a regularised least­squares algorithm, imposing non

Saglia, Roberto P.

204

The Center for Control, Dynamical Systems, and Computation University of California at Santa Barbara  

E-Print Network [OSTI]

by an example we will then explore the relationship between security and control systems. Finally we in the areas of systems, communications, control and signal processing at U.C. Berkeley. His research interestsThe Center for Control, Dynamical Systems, and Computation University of California at Santa

Akhmedov, Azer

205

Universal far-from-equilibrium Dynamics of a Holographic Superconductor  

E-Print Network [OSTI]

Symmetry breaking phase transitions are an example of a non-equilibrium process that requires real time treatment, all but impossible in strongly coupled systems with no long-lived quasiparticles. Holographic duality provides such an approach by mapping strongly coupled field theories in D dimensions into weakly coupled quantum gravity in D+1 anti-de Sitter spacetime. We use holographic duality to study formation of topological defects -- nontrivial winding numbers -- in the course of a superconducting transition in a strongly coupled theory in a 1D ring. We observe that when the system undergoes the transition on a quench time \\tau_Q, the condensate builds up with a delay that can be deduced using the Kibble-Zurek mechanism (KZM) from the quench time and the universality class of the theory, as determined from the quasinormal mode spectrum of the dual gravity model. Moreover, typical winding numbers deposited in the ring in the course of the transition exhibit a universal fractional power law dependence on the quench time \\tau_Q which is also predicted by KZM.

Julian Sonner; Adolfo del Campo; Wojciech H. Zurek

2014-06-09T23:59:59.000Z

206

Universality of Fragmentation in the Schrödinger Dynamics of Bosonic Josephson Junctions  

E-Print Network [OSTI]

The many-body Schr\\"odinger dynamics of a one-dimensional bosonic Josephson junction is investigated for up to ten thousand bosons and long times. The initial states are fully condensed and the interaction strength is weak. We report on a universal fragmentation dynamics on the many-body level: systems consisting of different numbers of particles fragment to the same value at constant mean-field interaction strength. The phenomenon manifests itself in observables such as the correlation functions of the system. We explain this universal fragmentation dynamics analytically based on the Bose-Hubbard model. We thereby show that the extent to which many-body effects become important at later times depends crucially on the initial state. Even for arbitrarily large particle numbers and arbitrarily weak interaction strength the dynamics is many-body in nature and the fragmentation universal. There is no weakly interacting limit where the Gross-Piatevskii mean-field is valid for long times.

Kaspar Sakmann; Alexej I. Streltsov; Ofir E. Alon; Lorenz S. Cederbaum

2014-05-14T23:59:59.000Z

207

Appears in the proceedings of the 16th International Symposium on Low Power Electronics and Design (ISLPED’10) TurboTag: Lookup Filtering to Reduce Coherence Directory Power  

E-Print Network [OSTI]

On-chip coherence directories of today’s multi-core systems are not energy efficient. Coherence directories dissipate a significant fraction of their power on unnecessary lookups when running commercial server and scientific workloads. These workloads have large working sets that are beyond the reach of on-chip caches of modern processors. Limited to capturing a small part of the working set, private caches retain cache blocks only for a short period of time before replacing them with new blocks. Moreover, coherence enforcement is a known performance bottleneck of multi-threaded software, hence data-sharing in optimized highperformance software is minimal. Consequently, the majority of the accesses to the coherence directory find no sharers in the directory because the data are not available in the on-chip private caches, effectively wasting power on the coherence checks. To improve energy-efficiency for future many-core systems, we propose TurboTag, a filtering mechanism to eliminate needless directory lookups. We analyze full-system traces of server and scientific workloads and find that over 69 % of accesses to the directory find no sharers and can be entirely avoided. Taking advantage of this behavior, TurboTag achieves a 58 % reduction in the directory’s dynamic power consumption. Categories and Subject Descriptors:

Pejman Lotfi-kamran; Michael Ferdman; Daniel Crisan; Babak Falsafi

208

TurboCap: A Batteryless, Supercapacitor-based Power Supply for Mini-FDPM  

E-Print Network [OSTI]

TurboCap: A Batteryless, Supercapacitor-based Power Supply for Mini-FDPM Chulsung Park1 , KeunsikCap, a batteryless, supercapacitor-based power supply subsystem for a handheld, laser-based breast cancer detector on the selection of supercapacitor topology for conversion efficiency and for form- factor minimization

Shinozuka, Masanobu

209

INFLUENCES OF RAKE RECEIVER/TURBO DECODER PARAMETERS ON ENERGY CONSUMPTION AND QUALITY  

E-Print Network [OSTI]

INFLUENCES OF RAKE RECEIVER/TURBO DECODER PARAMETERS ON ENERGY CONSUMPTION AND QUALITY Lodewijk T are selected and their influences on the energy consumption and quality are investigated by means power hardware is needed to save energy consumption. Furthermore, an adequate quality of the wireless

Al Hanbali, Ahmad

210

1 Copyright 2004 by ASME Proceedings of ASME-IGTI TURBO EXPO 2004  

E-Print Network [OSTI]

1 Copyright © 2004 by ASME Proceedings of ASME-IGTI TURBO EXPO 2004 14-17 JUNE 2004 VIENNA (AUSTRIA) ASME PAPER 2004-GT-54115 WIDGET-TEMP: A NOVEL WEB-BASED APPROACH FOR THERMOECONOMIC ANALYSIS lead to continuous improvements of the power plant and its organization. However, the original choice

Cazzola, Walter

211

Separation phenomena in the tritium source and numerical simulations of turbo-molecular pumps  

E-Print Network [OSTI]

Separation phenomena in the tritium source and numerical simulations of turbo-molecular pumps Felix In the previous works [1, 2], the results of numerical calculations of tritium flow from the buffer vessel up to the first vacuum system were reported. Two values of the tritium source temperature were considered, i.e. 27

Sharipov, Felix

212

1 Copyright 2011 by ASME Proceedings of ASME Turbo Expo Turbine Technical Conference  

E-Print Network [OSTI]

the melting point of blade material, efficient turbine cooling is most often required to ensure acceptable1 Copyright © 2011 by ASME Proceedings of ASME Turbo Expo Turbine Technical Conference GT2011 June TRANSFER INVESTIGATION AROUND A HIGH-PRESSURE GAS TURBINE ROTOR BLADE Ibrahim ERYILMAZ Tusas Engine

Camci, Cengiz

213

An Analysis of a Turbo-Fan Used to Improve the Velocity Distribution in a Low Speed Wind-Tunnel  

E-Print Network [OSTI]

The Pressure Drop Across the Turbo-fan The blade element theory of rotors will be used to obtain 4 an expression for the pressure drop across the turbo-fan. A new frame of reference will be adopted. The turbo-fan is considered to be moving at the velocity... where c , the section lift coefficient and c , the section drag coefficient are inter- preted as vectors. In wing theory, including rotor theory, it is assumed that any blade section is subject to the same force per unit length as a two dimensional...

Wells, Otis Dean

1960-01-01T23:59:59.000Z

214

Dynamically avoiding fine-tuning the cosmological constant: the ''Relaxed Universe''  

SciTech Connect (OSTI)

We demonstrate that there exists a large class of F(R,G) action functionals of the scalar curvature and of the Gauß-Bonnet invariant which are able to relax dynamically a large cosmological constant (CC), whatever it be its starting value in the early universe. Hence, it is possible to understand, without fine-tuning, the very small current value ?{sub 0} ? H{sub 0}{sup 2} of the CC as compared to its theoretically expected large value in quantum field theory and string theory. In our framework, this relaxation appears as a pure gravitational effect, where no ad hoc scalar fields are needed. The action involves a positive power of a characteristic mass parameter, M, whose value can be, interestingly enough, of the order of a typical particle physics mass of the Standard Model of the strong and electroweak interactions or extensions thereof, including the neutrino mass. The model universe emerging from this scenario (the ''Relaxed Universe'') falls within the class of the so-called ?XCDM models of the cosmic evolution. Therefore, there is a ''cosmon'' entity X (represented by an effective object, not a field), which in this case is generated by the effective functional F(R,G) and is responsible for the dynamical adjustment of the cosmological constant. This model universe successfully mimics the essential past epochs of the standard (or ''concordance'') cosmological model (?CDM). Furthermore, it provides interesting clues to the coincidence problem and it may even connect naturally with primordial inflation.

Bauer, Florian; Solà, Joan [High Energy Physics Group, Dept. ECM, and Institut de Ciències del Cosmos Univ. de Barcelona, Av. Diagonal 647, E-08028 Barcelona, Catalonia (Spain); Štefanci?, Hrvoje, E-mail: fbauer@ecm.ub.es, E-mail: sola@ecm.ub.es, E-mail: shrvoje@thphys.irb.hr [Theoretical Physics Division, Rudjer Boškovi? Institute, PO Box 180, HR-10002 Zagreb (Croatia)

2010-12-01T23:59:59.000Z

215

Matter Non-conservation in the Universe and Dynamical Dark Energy  

E-Print Network [OSTI]

In an expanding universe the vacuum energy density \\rho_{\\Lambda} is expected to be a dynamical quantity. In quantum field theory in curved space-time \\rho_{\\Lambda} should exhibit a slow evolution, determined by the expansion rate of the universe H. Recent measurements on the time variation of the fine structure constant and of the proton-electron mass ratio suggest that basic quantities of the Standard Model, such as the QCD scale parameter \\Lambda_{QCD}, may not be conserved in the course of the cosmological evolution. The masses of the nucleons m_N and of the atomic nuclei would also be affected. Matter is not conserved in such a universe. These measurements can be interpreted as a leakage of matter into vacuum or vice versa. We point out that the amount of leakage necessary to explain the measured value of \\dot{m}_N/m_N could be of the same order of magnitude as the observationally allowed value of \\dot{\\rho}_{\\Lambda}/\\rho_{\\Lambda}, with a possible contribution from the dark matter particles. The dark energy in our universe could be the dynamical vacuum energy in interaction with ordinary baryonic matter as well as with dark matter.

Harald Fritzsch; Joan Sola

2012-08-30T23:59:59.000Z

216

Proceedings of ASME Turbo Expo 2009: Power for Land, Sea and Air june 8-12, 2009, Orlando, Florida, USA  

E-Print Network [OSTI]

Proceedings of ASME Turbo Expo 2009: Power for Land, Sea and Air GT2009 june 8-12, 2009, Orlando are constructed with another finite element mesh which 1 Copyright c 2009 by ASME hal-0068

Paris-Sud XI, Université de

217

doi:10.1155/2007/75757 Research Article Performance of JPEG Image Transmission Using Proposed Asymmetric Turbo Code  

E-Print Network [OSTI]

This paper gives the results of a simulation study on the performance of JPEG image transmission over AWGN and Rayleigh fading channels using typical and proposed asymmetric turbo codes for error control coding. The baseline JPEG algorithm is used to compress a QCIF (176 ×144) “Suzie ” image. The recursive systematic convolutional (RSC) encoder with generator polynomials (1, D 3 +D 2 +1/D 3 + D + 1), that is, (13/11) in decimal, and 3G interleaver are used for the typical WCDMA and CDMA2000 turbo codes. The proposed asymmetric turbo code uses generator polynomials (1, D 3 +D 2 +1/D 3 +D+1;D 3 +D 2 +1/D 3 +1),that is, (13/11; 13/9) in decimal, and a code-matched interleaver. The effect of interleaver in the proposed asymmetric turbo code is studied using weight distribution and simulation. The simulation results and performance bound for proposed asymmetric turbo code for the frame length N = 400, code rate r = 1/3 with Log-MAP decoder over AWGN channel are compared with the typical system. From the simulation results, it is observed that the image transmission using proposed asymmetric turbo code performs better than that with the typical system. Copyright © 2007 Hindawi Publishing Corporation. All rights reserved. 1.

K. Ramasamy; Mohammad Umar Siddiqi; Mohamad Yusoff Alias; Recommended Richard; J. Barton

218

INCREASED FLEXIBILITY OF TURBO-COMPRESSORS IN NATURAL GAS TRANSMISSION THROUGH DIRECT SURGE CONTROL  

SciTech Connect (OSTI)

This preliminary phase 1 report summarizes the background and the work on the ''Increased Flexibility of Turbo-Compressors in Natural Gas Transmission through Direct Surge Control'' project to date. The importance of centrifugal compressors for natural gas transmission is discussed, and the causes of surge and the consequences of current surge control approaches are explained. Previous technology development, including findings from early GMRC research, previous surge detection work, and selected publications, are presented. The project is divided into three Phases to accomplish the project objectives of verifying near surge sensing, developing a prototype surge control system (sensor and controller), and testing/demonstrating the benefits of direct surge control. Specification for the direct surge control sensor and controller developed with guidance from the industry Oversight Committee is presented in detail. Results of CFD modeling conducted to aid in interpreting the laboratory test results are shown and explained. An analysis of the system dynamics identified the data sampling and handling requirements for direct surge control. A detailed design process for surge detection probes has been developed and explained in this report and has been used to prepare drag probes for the laboratory compressor test and the first field test. The surge detection probes prepared for testing have been bench tested and flow tested to determine and calibrate their sensitivity to flow forces as shown in data presented in this report. The surge detection drag probes have been shown to perform as expected and as required to detect approaching surge. Laboratory test results of surge detection in the SwRI centrifugal compressor demonstrated functionality of the surge detection probes and a change in the impeller inlet flow pattern prior to surge. Although the recirculation cannot be detected because of the specific geometry of this compressor, there are changes that indicate the approach of surge that can be detected. Preparations for a field test had been completed at one point in the project. However, a failure of the surge probe wiring just inside the compressor case has caused a delay in the field testing. Repairs for the wiring in the compressor have been scheduled and the field test will take place shortly after the repairs.

Robert J. McKee

2003-05-01T23:59:59.000Z

219

Further Results on Quadratic Permutation Polynomial-Based Interleavers for Turbo Codes  

E-Print Network [OSTI]

An interleaver is a critical component for the channel coding performance of turbo codes. Algebraic constructions are of particular interest because they admit analytical designs and simple, practical hardware implementation. Also, the recently proposed quadratic permutation polynomial (QPP) based interleavers by Sun and Takeshita (IEEE Trans. Inf. Theory, Jan. 2005) provide excellent performance for short-to-medium block lengths, and have been selected for the 3GPP LTE standard. In this work, we derive some upper bounds on the best achievable minimum distance dmin of QPP-based conventional binary turbo codes (with tailbiting termination, or dual termination when the interleaver length N is sufficiently large) that are tight for larger block sizes. In particular, we show that the minimum distance is at most 2(2^{\

Rosnes, Eirik

2011-01-01T23:59:59.000Z

220

EXIT-Chart Aided Near-Capacity Quantum Turbo Code Design  

E-Print Network [OSTI]

The design of Quantum Turbo Codes (QTCs) typically relies on the analysis of their distance spectra, followed by Monte-Carlo simulations. By contrast, in this paper we appropriately adapt the conventional non-binary EXtrinsic Information Transfer (EXIT) charts for quantum turbo codes by exploiting the intrinsic quantum-to-classical isomorphism. The EXIT chart analysis not only allows us to dispense with the time-consuming Monte-Carlo simulations, but also facilitates the design of near-capacity codes without resorting to the analysis of their distance spectra. We have demonstrated that our EXIT chart predictions are in line with the Monte-Carlo simulations results. We have also optimized the entanglement-assisted QTC using EXIT charts, which outperforms the existing distance spectra based QTCs. More explicitly, the performance of our optimized QTC is as close as 0.3 dB to the corresponding hashing bound.

Zunaira Babar; Soon Xin Ng; Lajos Hanzo

2015-02-03T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
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221

DESIGN & DEVELOPMENT OF E-TURBO FOR SUV AND LIGHT TRUCK APPLICATIONS  

SciTech Connect (OSTI)

The purpose of the project is to develop an electronically controlled, electrically assisted turbocharging system, e-Turbo, for application to SUV and light truck class of passenger vehicles. Earlier simulation work had shown the benefits of e-Turbo system on increasing low-end torque and improving fuel economy. This paper will present further data from the literature to show that advanced turbocharging can enable diesel engine downsizing of 10-30% with 6-17% improvement in fuel economy. This is in addition to the fuel economy benefit that a turbocharged diesel engine offers over conventional gasoline engines. E-Turbo is necessary to get acceptable driving characteristics with downsized diesel engines. As a first step towards the development of this technology for SUV/light truck sized diesel engines (4-6 litre displacement), design concepts and hardware were evaluated for a smaller engine (2 litre displacement). It was felt that design and developments issues could be minimized, the concept proven progressively on the bench, on a small engine and then applied to a large Vee engine (one on each bank). After successful demonstration of the concept, large turbomachinery could be designed and built specifically for larger SUV sized diesel engines. This paper presents the results of development of e-Turbo for a 2 litre diesel engine. A detailed comparison of several electric assist technologies including permanent magnet, six-phase induction and conventional induction motor/generator technology was done. A comparison of switched reluctance motor technology was also done although detailed design was not carried out.

Balis, C; Middlemass, C; Shahed, SM

2003-08-24T23:59:59.000Z

222

Phase space dynamics of triaxial collapse: II. Universal evolution of axis ratios  

E-Print Network [OSTI]

In paper I of this series, we examined triaxial collapse in terms of the dynamics of eigenvalues of three important tensors: the Hessian of the gravitational potential, the tensor of velocity derivatives and the deformation tensor. The first paper focussed on the joint gravity-velocity dynamics and here we focus on the deformation tensor, which is directly related to the axes' evolution. We examine the evolution of the minor to major and intermediate to major axes ratios ($s$ and $q$) and the triaxiality parameter $T$ as function of mass scale and redshift. We find that the ellipticity and prolateness increase with decreasing mass scale and decreasing redshift. These trends, while in agreement with previous analytic studies, contradict numerical simulations. Nevertheless, we find that a suitable transformation of $s$, motivated by the scaling used in recent analysis of the Millennium XXL simulations by Bonamigo {\\it et al} (2014), has a universal log-normal distribution function that matches their numerical r...

Nadkarni-Ghosh, Sharvari

2015-01-01T23:59:59.000Z

223

Generalized models as a universal approach to the analysis of nonlinear dynamical systems  

E-Print Network [OSTI]

We present a universal approach to the investigation of the dynamics in generalized models. In these models the processes that are taken into account are not restricted to specific functional forms. Therefore a single generalized models can describe a class of systems which share a similar structure. Despite this generality, the proposed approach allows us to study the dynamical properties of generalized models efficiently in the framework of local bifurcation theory. The approach is based on a normalization procedure that is used to identify natural parameters of the system. The Jacobian in a steady state is then derived as a function of these parameters. The analytical computation of local bifurcations using computer algebra reveals conditions for the local asymptotic stability of steady states and provides certain insights on the global dynamics of the system. The proposed approach yields a close connection between modelling and nonlinear dynamics. We illustrate the investigation of generalized models by considering examples from three different disciplines of science: a socio-economic model of dynastic cycles in china, a model for a coupled laser system and a general ecological food web.

Thilo Gross; Ulrike Feudel

2006-01-29T23:59:59.000Z

224

1 Copyright 2004 by ASME Proceedings of ASME Turbo Expo 2004  

E-Print Network [OSTI]

in one dynamic process. The underlying phenomena of flash evaporation, shock wave compression on a thermodynamic model was generated to evaluate the performance of R718 baseline and wave-rotor-enhanced cycles-PORT CONDENSING WAVE ROTOR Amir A. Kharazi Michigan State University Dept. of Mechanical Engineering

Müller, Norbert

225

Development of Inexpensive Turbo Compressor/Expanders for Industrial Use  

E-Print Network [OSTI]

within the bearing housing/. It contains the lube oil inlet port, the supply passages to the bearings and oil dra1 port. The bearing housing connects both thel turbine and compressor throughinteg~lal support flanges which are arranged 0 each end... was introduced. Drawings were made in sufficient detail and clarity to effect a smooth procurement and manufacturing program. The turbine and compressor wheels were dynamically balanced individually before plating and as an assembly after plating. To avoid...

Jacox, J. W.

226

Joint Turbo Channel Detection and RLL Decoding for (1, 7) Coded Partial Response Recording Channels Zhao Fang IBM Global Services  

E-Print Network [OSTI]

Abstract — Runlength limited (RLL) codes are essential in recording systems for minimizing distortions and maintaining bit synchronization. In this paper, we investigate the application of turbo codes on RLL (1, 7) coded partial response equalized recording channels. We propose a ‘combined trellis ’ approach for doing ‘soft-in soft-out ’ (SISO) channel detection and RLL decoding jointly. This approach makes the implementation of turbo equalization easier since it eliminates the need for a ‘SISO RLL encoder ’ in the feedback path from turbo decoder to channel detector. Simulation studies on magnetic recording channels show that our approach provides a coding gain of about 4 dB compared to Viterbi detection at 10 ?6 bit error rate. I.

George Mathew; B. Farhang-boroujeny

227

1D-8 Duo-Binary Circular Turbo Decoder Based on Border Metric Encoding for WiMAX  

E-Print Network [OSTI]

Abstract- This paper presents a duo-binary circular turbo decoder based on border metric encoding. With the proposed method, the memory size for branch memory is reduced by half and the dummy calculation is removed at the cost of the small-sized memory which holds the encoded border metrics. Based on the proposed SISO decoder and the dedicated hardware interleaver, a duo-binary circular turbo decoder is designed for the WiMAX standard using a 0.13 ?m CMOS process, which can support 24.26 Mbps at 200MHz. I.

Ji-hoon Kim; In-cheol Park

228

Ber analysis of iterative turbo encoded miso wireless communication system under implementation of q-ostbc scheme  

E-Print Network [OSTI]

In this paper, a comprehensive study has been made to evaluate the performance of a MISO wireless communication system. The 4-by-1 spatially multiplexed Turbo encoded system under investigation incorporates Quasi-orthogonal space-time block coding (Q-STBC) and ML signal detection schemes under QPSK, QAM, 16PSK and 16QAM digital modulations. The simulation results elucidate that a significant improvement of system performance is achieved in QAM modulation. The results are also indicative of noticeable system performance enhancement with increasing number of iterations in Turbo encoding/decoding scheme.

Kabir, M Hasnat; Zaman, Mustari; Rashed, Md Golam

2012-01-01T23:59:59.000Z

229

A serially concatenated BCH-Turbo code scheme over an Additive White Gaussion Noise channel  

E-Print Network [OSTI]

, ;q(s', s) P(sls')p(yr-Is' s) 21 DE- INTERLEA VER. e L21 Ip Y MAP DECODER I e 12 N-BIT INTERLEAVER. MAP DECODER 2. e y N-BIT INTERLEAVER. 2p y Fig. 5. Turbo code rlecoder P(uI )p(yk ur) (3. 27) where P() stands for the probability... 3 4 7 9 12 16 17 20 25 25 25 27 29 33 33 35 38 REFERENCES APPENDIX A 41 VITA LIST OF TABLES TABLE Page I Berlckamp-Massey algorithm , 'l l LIST OF FIGURES FIGURE Page Convolui, ional encoder for s, (2, 1, 2) convolutional...

Ovalekar, Sameer V.

1997-01-01T23:59:59.000Z

230

Turbo Compounding: A Technology Whose Time Has Come | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment7DepartmentEnergy TurbineTurbo

231

Evidence of universality in the dynamical response of nanomechanical ultra-nanocrystalline diamond resonators at millikelvin temperatures  

E-Print Network [OSTI]

independent theory. In particular, polycrystalline diamond is an exciting material for nanomechanical devicesEvidence of universality in the dynamical response of nanomechanical ultra-nanocrystalline diamond fabricated from ultra-nanocrystalline diamond. Frequency shift f/f0 and dissipa- tion Q-1 demonstrate

232

13th Winter Workshop on Nuclear Dynamics W.J. Llope Marathon Key, Florida, February 18, 1997 Rice University  

E-Print Network [OSTI]

test . Completed Spring, 1999 Nuclear matter under extreme conditions... Search for, and studies of, February 1­8, 1997 Rice University TPC . 24+2 outer, and 24+2 inner, sectors built & tested . gas vessel13th Winter Workshop on Nuclear Dynamics W.J. Llope Marathon Key, Florida, February 1­8, 1997 Rice

Llope, William J.

233

Turbo Codes Based on Time-Variant Memory-1 Convolutional Codes over Fq  

E-Print Network [OSTI]

Two classes of turbo codes over high-order finite fields are introduced. The codes are derived from a particular protograph sub-ensemble of the (dv=2,dc=3) low-density parity-check code ensemble. A first construction is derived as a parallel concatenation of two non-binary, time-variant accumulators. The second construction is based on the serial concatenation of a non-binary, time-variant differentiator and of a non-binary, time-variant accumulator, and provides a highly-structured flexible encoding scheme for (dv=2,dc=4) ensemble codes. A cycle graph representation is provided. The proposed codes can be decoded efficiently either as low-density parity-check codes (via belief propagation decoding over the codes bipartite graph) or as turbo codes (via the forward-backward algorithm applied to the component codes trellis). The forward-backward algorithm for symbol maximum a posteriori decoding of the component codes is illustrated and simplified by means of the fast Fourier transform. The proposed codes provid...

Liva, Gianluigi; Scalise, Sandro; Chiani, Marco

2011-01-01T23:59:59.000Z

234

A NOVEL APPROACH FOR LOWER POWER DESIGN IN TURBO CODING SYSTEM  

E-Print Network [OSTI]

Abstract: Low Power is an extremely important issue for future mobile communication systems; The focus of this paper is to implementat turbo codes for low power solutions. The effect on performance due to variation in parameters like frame length, number of iterations, type of encoding scheme and type of the interleave in the presence of additive white Gaussian noise is studied with the floating point model. In order to obtain the effect of quantization and word length variation, a fixed point model of the application is also developed.. The application performance measure, namely bit-error rate (BER) is used as a design constraint while optimizing for power and area coverage. Low power Optimization is Performed on Implementation levels by the use of Voltage scaling. With those Techniques we can reduced the power 98.5%and Area(LUT) is 57 % and speed grade is Increased.This type of Power maneger is proposed and implemented based on the timing details of the turbo decoder in the VHDL model.

Dr. K. Sathaya Prasad

235

Modeling the effects of maintenance on the degradation of a water-feeding turbo-pump of nuclear power plant  

E-Print Network [OSTI]

of the components, which derives from the particular `life' (failures, shocks, preventive maintenance actionsModeling the effects of maintenance on the degradation of a water-feeding turbo-pump of nuclear Abstract: This work addresses the modeling of the effects of maintenance on the degradation of an electric

Boyer, Edmond

236

1 Copyright 20xx by ASME Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea and Air  

E-Print Network [OSTI]

1 Copyright © 20xx by ASME Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea and Air on a simple 8th power velocity scaling law for jet noise generation. Thus, highly effective subsonic jet noise and author of correspondence #12;2 Copyright © 20xx by ASME the same mechanisms for which these devices have

Dabiri, John O.

237

Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air June 14-18, 2010, Glasgow, UK  

E-Print Network [OSTI]

Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air GT2010 June 14-18, 2010, Glasgow by sweeping the forcing frequency. It is then possible to conduct 1 Copyright c 2010 by ASME hal-00825511,version1-23May2013 Author manuscript, published in "Journal of Engineering for Gas Turbines and Power 133

Paris-Sud XI, Université de

238

Proceedings of ASME Turbo Expo 2014: Turbine Technical Conference and Exposition June 16-20, 2014, Dusseldorf, Germany  

E-Print Network [OSTI]

Proceedings of ASME Turbo Expo 2014: Turbine Technical Conference and Exposition GT2014 June 16 Bordes, France moustapha.mbaye@turbomeca.fr ABSTRACT The recent improvements in turbomachinery design into consideration when dealing with turbomachinery bladed disks. The predictive com- putational models are more

Boyer, Edmond

239

A Dynamically Driven, Universal Thermal Profile of Galaxy Groups and Clusters  

E-Print Network [OSTI]

Groups and clusters of galaxies show a universal, nearly linear entropy radial profile $K(r)$. Using deprojected 13 clusters and 9 groups from the literature, we find that $K(r)\\propto r^{0.97\\pm0.01}$, consistent with the mean power-law index $\\sim(0.9-1.1)$ of previous studies. An equally good fit to the data is given by a $(t_{cool}/t_{ff})\\propto r^{0.73\\pm0.01}$ ratio between cooling and free-fall times. Both profiles slightly flatten at small radii, as $(t_{cool}/t_{ff})$ becomes of order unity. The entropy profile is usually attributed to the primordial gas crossing the virial shock, to non-standard heat conduction, or to turbulent heating. We argue that a dynamical mechanism is needed to sustain such a simple profile, oblivious to the temperature peak at the edge of the core and to the virial shock at the outskirts, and robust to the presence of ongoing cooling, merger, and AGN activity. In particular, we show that such a profile is naturally obtained in a spiral flow, which is likely to exist in most...

Reiss, Ido

2014-01-01T23:59:59.000Z

240

Dynamical vacuum energy in the expanding Universe confronted with observations: a dedicated study  

E-Print Network [OSTI]

Despite the many efforts, our theoretical understanding of the ultimate nature of the dark energy component of the universe still lags well behind the astounding experimental evidence achieved from the increasingly sophisticated observational tools at our disposal. While the canonical possibility is a strict cosmological constant, or rigid vacuum energy density $\\rho_{\\Lambda}=$const., the exceeding simplicity of this possibility lies also at the root of its unconvincing theoretical status, as there is no explanation for the existence of such constant for the entire cosmic history. Herein we explore general models of the vacuum energy density slowly evolving with the Hubble function $H$ and/or its time derivative, $\\rho_{\\Lambda}(H,\\dot{H})$. Some of these models are actually well-motivated from the theoretical point of view and may provide a rich phenomenology that could be explored in future observations, whereas some others have more limitations. In this work, we put them to the test and elucidate which ones are still compatible with the present observations and which ones are already ruled out. We consider their implications on structure formation, in combination with data on type Ia supernovae, the Cosmic Microwave Background, the Baryonic Acoustic Oscillations, and the predicted redshift distribution of cluster-size collapsed structures. The relation of these vacuum models on possible evidence of dynamical dark energy recently pointed out in the literature is also briefly addressed.

Adria Gomez-Valent; Joan Sola; Spyros Basilakos

2014-11-27T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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

Effects of Electromagnetic Field on the Dynamics of Bianchi type $VI_0$ Universe with Anisotropic Dark Energy  

E-Print Network [OSTI]

Spatially homogeneous and anisotropic Bianchi type $VI_0$ cosmological models with cosmological constant are investigated in the presence of anisotropic dark energy. We examine the effects of electromagnetic field on the dynamics of the universe and anisotropic behavior of dark energy. The law of variation of the mean Hubble parameter is used to find exact solutions of the Einstein field equations. We find that electromagnetic field promotes anisotropic behavior of dark energy which becomes isotropic for future evolution. It is concluded that the isotropic behavior of the universe model is seen even in the presence of electromagnetic field and anisotropic fluid.

M. Sharif; M. Zubair

2010-08-04T23:59:59.000Z

242

Use of Xenon Difluoride to Clean Hazardous By-Products in Ion Implanter Source Housings, Turbo Pumps, and Fore-Lines  

SciTech Connect (OSTI)

This paper describes the use of xenon difluoride to clean deposits in the source housing, source turbo pump, and source turbo pump fore-line of ion implanters. Xenon difluoride has previously been shown to be effective in increasing the lifetime of the ion source{sup 1,2} and this paper presents an extension of the technology to other areas within the tool. Process by-products that are deposited in the source housing, turbo pump, and turbo pump fore-line can not only pose productivity issues, in the case of coatings on insulators, but can also be flammable and toxic in the case of deposits formed within the turbo pump and fore-line. The results presented in this paper detail the initial successful examples of using xenon difluoride to clean these deposits.ATMI has shown that xenon difluoride is capable of cleaning an insulator in an ion implanter. Typically during use an insulator will become increasingly coated with deposits that could lead to productivity problems. By introducing xenon difluoride into the source housing the insulator residues were effectively cleaned in-situ, thereby extending the maintenance interval and resulting in significant consumable savings.Similar deposits that form in the turbo pump and fore-line could not only lead to production problems due to turbo pump failure or fore-line build-up, but pose significant health risks during the ex-situ cleaning process. Through internal testing ATMI has shown that xenon difluoride is able to clean phosphorus and germanium deposits located within a turbo pump. Additionally, testing has demonstrated that the turbo pump fore-line can be cleaned in-situ without the need to remove these components, thereby virtually eliminating the possibility of fires. The cleaning reaction progress and by-products were monitored using FTIR spectrometry and thermocouples.In order to efficiently clean the source housing, turbo pump, and turbo pump fore-line xenon difluoride delivery must be optimized. This paper also details a hardware concept that maximizes xenon difluoride delivery and allows the clean to be done in a way that is viable for production ion implanters.

Despres, J.; Chambers, B.; Bishop, S.; Kaim, R.; Letaj, S.; Sergi, S.; Sweeney, J.; Tang, Y.; Wilson, S.; Yedave, S. [ATMI, 7 Commerce Drive, Danbury, CT, 06810 (United States)

2011-01-07T23:59:59.000Z

243

Universality in the cold and ultracold dynamics of the barrierless D$^{+}$+ H$_2$ reaction  

E-Print Network [OSTI]

We have calculated quantum reactive and elastic cross-sections for D$^{+}+$ para-H$_2$($v$=0, $j$=0) $\\rightarrow$ H$^+$ + HD collisons using the hyperspherical quantum reactive scattering method [Chem. Phys. Lett. 1990,169, 473]. The H$_{3}^{+}$ system is the prototype of barrierless ion-molecule reactions, apart from its relevance in astrochemistry. The considered collision energy ranges from the ultracold regime, where only one partial wave is open, up to the Langevin regime, where many of them contribute. At very low kinetic energies, both an accurate description of the long-range (LR) region in the potential energy surface (PES), and long dynamical propagations, up to distances of 10$^{5}$ a0, are required. Accordingly, calculations have been carried out on the PES by Velilla et al. [J. Chem. Phys. 2008, 129,084307] which accurately reproduces the LR interactions. Hyperspherical methodology was recently modified in order to allow the accurate inclusion of LR interactions while minimizing the computational expense. Such implementation is shown particularly suitable for systems involving ions, where the $R^{-4}$ behavior largely extends the range of the potential. We find a reaction rate coefficient which remains almost constant in a kinetic energy range of more than ten orders of magnitude. In particular, the value reached in the Wigner regime, where only one partial wave is open, is paradoxically the Langevin classical value (within a few percent) expected at high energies. Results are discussed in terms of {\\em universality} and related to the recently published quantum defect theory [Phys. Rev. Lett. 2013, 110, 213202]. Since the system has small exothermicity and a low number of channels, it is possible to test such model in a case where the loss probability at short range is appreciably far from unity.

Manuel Lara; P. G. Jambrina; F. J. Aoiz; J. -M. Launay

2014-10-04T23:59:59.000Z

244

International Journal of Electrical and Computer Engineering 3:10 2008 Optimal Power Allocation for the Proposed Asymmetric Turbo Code for 3G Systems  

E-Print Network [OSTI]

Abstract—We proposed a new class of asymmetric turbo encoder for 3G systems that performs well in both “water fall ” and “error floor ” regions in [7]. In this paper, a modified (optimal) power allocation scheme for the different bits of new class of asymmetric turbo encoder has been investigated to enhance the performance. The simulation results and performance bound for proposed asymmetric turbo code with modified Unequal Power Allocation (UPA) scheme for the frame length, N=400, code rate, r=1/3 with Log-MAP decoder over Additive White Gaussian Noise (AWGN) channel are obtained and compared with the system with typical UPA and without UPA. The performance tests are extended over AWGN channel for different frame size to verify the possibility of implementation of the modified UPA scheme for the proposed asymmetric turbo code. From the performance results, it is observed that the proposed asymmetric turbo code with modified UPA performs better than the system without UPA and with typical UPA and it provides a coding gain of 0.4 to 0.52dB. Keywords—Asymmetric turbo code, Generator polynomial, Interleaver, UPA, WCDMA, cdma2000. I.

K. Ramasamy; B. Balamuralithara; Mohammad Umar Siddiqi

245

Dieckmann U & Ferrire R (2004). Adaptive Dynamics and Evolving Biodiversity. In: Evolutionary Conservation Biology, eds. Ferrire R, Dieckmann U & Couvet D, pp. 188224. Cambridge University  

E-Print Network [OSTI]

Dieckmann U & Ferrière R (2004). Adaptive Dynamics and Evolving Biodiversity. In: Evolutionary Conservation Biology, eds. Ferrière R, Dieckmann U & Couvet D, pp. 188­224. Cambridge University Press. c International Institute for Applied Systems Analysis 11 Adaptive Dynamics and Evolving Biodiversity Ulf

Dieckmann, Ulf

246

Balance of Plant System Analysis and Component Design of Turbo-Machinery for High Temperature Gas Reactor Systems  

SciTech Connect (OSTI)

The Modular Pebble Bed Reactor system (MPBR) requires a gas turbine cycle (Brayton cycle) as the power conversion system for it to achieve economic competitiveness as a Generation IV nuclear system. The availability of controllable helium turbomachinery and compact heat exchangers are thus the critical enabling technology for the gas turbine cycle. The development of an initial reference design for an indirect helium cycle has been accomplished with the overriding constraint that this design could be built with existing technology and complies with all current codes and standards. Using the initial reference design, limiting features were identified. Finally, an optimized reference design was developed by identifying key advances in the technology that could reasonably be expected to be achieved with limited R&D. This final reference design is an indirect, intercooled and recuperated cycle consisting of a three-shaft arrangement for the turbomachinery system. A critical part of the design process involved the interaction between individual component design and overall plant performance. The helium cycle overall efficiency is significantly influenced by performance of individual components. Changes in the design of one component, a turbine for example, often required changes in other components. To allow for the optimization of the overall design with these interdependencies, a detailed steady state and transient control model was developed. The use of the steady state and transient models as a part of an iterative design process represents a key contribution of this work. A dynamic model, MPBRSim, has been developed. The model integrates the reactor core and the power conversion system simultaneously. Physical parameters such as the heat exchangers; weights and practical performance maps such as the turbine characteristics and compressor characteristics are incorporated into the model. The individual component models as well as the fully integrated model of the power conversion system have been verified with an industry-standard general thermal-fluid code Flownet. With respect to the dynamic model, bypass valve control and inventory control have been used as the primary control methods for the power conversion system. By performing simulation using the dynamic model with the designed control scheme, the combination of bypass and inventory control was optimized to assure system stability within design temperature and pressure limits. Bypass control allows for rapid control system response while inventory control allows for ultimate steady state operation at part power very near the optimum operating point for the system. Load transients simulations show that the indirect, three-shaft arrangement gas turbine power conversion system is stable and controllable. For the indirect cycle the intermediate heat exchanger (IHX) is the interface between the reactor and the turbomachinery systems. As a part of the design effort the IHX was identified as the key component in the system. Two technologies, printed circuit and compact plate-fin, were investigated that have the promise of meeting the design requirements for the system. The reference design incorporates the possibility of using either technology although the compact plate-fin design was chosen for subsequent analysis. The thermal design and parametric analysis with an IHX and recuperator using the plate-fin configuration have been performed. As a three-shaft arrangement, the turbo-shaft sets consist of a pair of turbine/compressor sets (high pressure and low pressure turbines with same-shaft compressor) and a power turbine coupled with a synchronous generator. The turbines and compressors are all axial type and the shaft configuration is horizontal. The core outlet/inlet temperatures are 900/520 C, and the optimum pressure ratio in the power conversion cycle is 2.9. The design achieves a plant net efficiency of approximately 48%.

Ronald G. Ballinger Chunyun Wang Andrew Kadak Neil Todreas

2004-08-30T23:59:59.000Z

247

The Center for Control, Dynamical Systems, and Computation University of California at Santa Barbara  

E-Print Network [OSTI]

. Abed Dept. of Electrical and Computer Engineering Institute for Systems Research University of Maryland and chaos. He has studied applications in electric power systems, mechanical and aerospace systems: Eyad Abed is Professor of ECE and Director of the Institute for Systems Research at the University

Akhmedov, Azer

248

Universal pensions in Mexico City : changing dynamics of citizenship and state formation in a global city  

E-Print Network [OSTI]

The main topic of this study is the enactment of a non-contributory and non-means-tested Universal Pension (Pension Alimentaria Ciudadana para Adultos Mayores) program in Mexico City directed at city residents 70 years of ...

Lajous-Loaeza, Andrés

2009-01-01T23:59:59.000Z

249

Measurement and control system for cryogenic helium gas bearing turbo-expander experimental platform based on Siemens PLC S7-300  

SciTech Connect (OSTI)

An experimental platform for cryogenic Helium gas bearing turbo-expanders is established at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences. This turbo-expander experimental platform is designed for performance testing and experimental research on Helium turbo-expanders with different sizes from the liquid hydrogen temperature to the room temperature region. A measurement and control system based on Siemens PLC S7-300 for this turbo-expander experimental platform is developed. Proper sensors are selected to measure such parameters as temperature, pressure, rotation speed and air flow rate. All the collected data to be processed are transformed and transmitted to S7-300 CPU. Siemens S7-300 series PLC CPU315-2PN/DP is as master station and two sets of ET200M DP remote expand I/O is as slave station. Profibus-DP field communication is established between master station and slave stations. The upper computer Human Machine Interface (HMI) is compiled using Siemens configuration software WinCC V6.2. The upper computer communicates with PLC by means of industrial Ethernet. Centralized monitoring and distributed control is achieved. Experimental results show that this measurement and control system has fulfilled the test requirement for the turbo-expander experimental platform.

Li, J.; Xiong, L. Y.; Peng, N.; Dong, B.; Liu, L. Q. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China); Wang, P. [Beijing Sciample Technology Co., Ltd., Beijing, 100190 (China)

2014-01-29T23:59:59.000Z

250

The Center for Control, Dynamical Systems, and Computation University of California at Santa Barbara  

E-Print Network [OSTI]

to an Oil Well Drilling System Ole Morten Aamo Norwegian University of Science and Technology (NTNU) Friday, September 25, 2009 3:00 - 4:00 PM HFH 1104 Abstract: A new adaptive observer (re)design is developed. The design was originally motivated by the pressure estimation problem in an oil well drilling system

Akhmedov, Azer

251

ThermalEngineeringLaboratory,VanderbiltUniversity Molecular Dynamics Simulation of Thin Films with  

E-Print Network [OSTI]

refrigeration and energy saving buildings 2/9 #12;ThermalEngineeringLaboratory,VanderbiltUniversity Analog to pn-type semiconductor, this creates the space charge region and built-in potential (voltage) · A forward bias decreases) V Space Charge Region P N Iq, T, V 3/9 #12;Thermal

Walker, D. Greg

252

Instrumentation and Beam Dynamics Study of Advanced Electron-Photon Facility in Indiana University  

SciTech Connect (OSTI)

The Advanced eLectron-PHoton fAcility (ALPHA) is a compact electron accelerator under construction and being commissioned at the Indiana University Center for Exploration of Energy and Matter (CEEM). In this thesis, we have studied the refurbished Cooler Injector Synchrotron (CIS) RF cavity using both the transmission line model and SUPERFISH simulation. Both low power and high power RF measurements have been carried out to characterize the cavity. Considering the performance limit of ferrite, we have designed a new ferrite loaded, co-axial quarter wave like cavity with similar structure but a more suitable ferrite material. We have also designed a traveling wave stripline kicker for fast extraction by POISSON and Microwave Studio. The strips geometry is trimmed to maximize the uniformity of the kicking field and match the impedance of the power cables. The time response simulation shows the kicker is fast enough for machine operation. The pulsed power supply requirement has also been specified. For the beam diagnosis in the longitudinal direction, we use a wideband Wall Gap Monitor (WGM) served in CIS. With proper shielding and amplification to get good WGM signal, we have characterized the injected and extracted beam signal in single pass commissioning, and also verified the debunching effect of the ALPHA storage ring. A modulation-demodulation signal processing method is developed to measure the current and longitudinal profile of injected beam. By scanning the dipole strength in the injection line, we have reconstructed the tomography of the longitudinal phase space of the LINAC beam. In the accumulation mode, ALPHA will be operated under a low energy and high current condition, where intra beam scattering (IBS) becomes a dominant effect on the beam emittance. A self consistent simulation, including IBS effect, gas scattering and linear coupling, has been carried out to calculate the emittance of the stored beam.

Luo, Tianhuan; /Indiana U.

2011-08-01T23:59:59.000Z

253

Dynamics of Johari-Goldstein ? relaxation and its universal relation to ? relaxation in bulk metallic glasses by mechanical spectroscopy  

SciTech Connect (OSTI)

The dynamics of the Johari–Goldstein (JG) ? relaxation and the ? relaxation in bulk metallic glasses (MGs) has been investigated by using mechanical spectroscopy combined with the Coupling Model. The ? relaxations of MGs exhibit different behaviors such as peaks, humps, and excess wings due to the different fluctuations of the chemical interactions among the constituting atoms. A universal correlation between the ? relaxation and the ? relaxation is generally found by their activation energies and relaxation times as well as the non-exponentiality parameter of the ? relaxation, which can be predicted quantitatively from the Coupling Model. Based on the quasi-point defects theory, a correlation factor ? shows a broad peak along with the ? relaxation, suggesting that the concentration and the correlation degree of the string-like configurations involved in the ? relaxation vary with increasing temperature, which challenges the previous view that the system is in an iso-configuration state below T{sub g} and may shed new light on the nature of the JG ? relaxation in metallic glasses.

Wu, Xuebang, E-mail: xbwu@issp.ac.cn; Guo, Lijun; Liu, C. S. [Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, P.O. Box 1129, Hefei, Anhui (China)

2014-06-14T23:59:59.000Z

254

Design and test of a wet type helium turbo-expander with an alternator as a brake  

SciTech Connect (OSTI)

A wet type helium turbo-expander with expected adiabatic efficiency of 70% at inlet pressure, temperature, and outlet pressure of 1.3 MPa, 6.0 K, and 0.2 MPa, respectively, has been developed. An alternator is adopted as a brake where a permanent magnet is held in the turbine shaft. And a self-acting gas bearing is used at thrust and journal bearings. An electromagnet supports thrust bearing to lift up the thrust disk when initiating operation. Design mass flow rate of the turbine is determined to be 60 g/s, corresponding to the JT mass flow rate in the existing helium liquefier/refrigerator. In the cryogenic performance test, the turbine had increased helium liquefaction rate by four times larger than the liquefaction rate without turbine operation.

Kato, T.; Miyake, A.; Kawano, K.; Hamada, K.; Hiyama, T.; Iwamoto, S.; Ebisu, H.; Tsuji, H. [Japan Atomic Energy Research Institute, Ibaraki-ken (Japan); Saji, N.; Kaneko, Y. [Ishikawajima-Harima Heavy Industries Co. Ltd., Tokyo (Japan)] [and others

1994-12-31T23:59:59.000Z

255

Failure of maximum likelihood methods for chaotic dynamical systems School of Mathematics and Statistics, University of Western Australia, Perth, Australia  

E-Print Network [OSTI]

of Mathematics and Statistics, University of Western Australia, Perth, Australia Received 23 June 2006; revised

Judd, Kevin

256

Investigating potential light-duty efficiency improvements through simulation of turbo-compounding and waste-heat recovery systems  

SciTech Connect (OSTI)

Modern diesel engines used in light-duty transportation applications have peak brake thermal efficiencies in the range of 40-42% for high-load operation with substantially lower efficiencies at realistic road-load conditions. Thermodynamic energy and exergy analysis reveals that the largest losses from these engines are due to combustion irreversibility and heat loss to the coolant, through the exhaust, and by direct convection and radiation to the environment. Substantial improvement in overall engine efficiency requires reducing or recovering these losses. Unfortunately, much of the heat transfer either occurs at relatively low temperatures resulting in large entropy generation (such as in the air-charge cooler), is transferred to low-exergy flow streams (such as the oil and engine coolant), or is radiated or convected directly to the environment. While there are significant opportunities for recovery from the exhaust and EGR cooler for heavy-duty applications, achieving similar benefits for light-duty applications is complicated by transient, low-load operation at typical driving conditions and competition with the turbocharger and aftertreatment system for the limited thermal resources. We have developed an organic Rankine cycle model using GT-Suite to investigate the potential for efficiency improvement through waste-heat recovery from the exhaust and EGR cooler of a light-duty diesel engine. The model is used to examine the effects of efficiency-improvement strategies such as cylinder deactivation, use of advanced materials and improved insulation to limit ambient heat loss, and turbo-compounding on the steady-state performance of the ORC system and the availability of thermal energy for downstream aftertreatment systems. Results from transient drive-cycle simulations are also presented, and we discuss strategies to address operational difficulties associated with transient drive cycles and balancing the thermal requirements of waste-heat recovery, turbocharging or turbo-compounding, and exhaust aftertreatment.

Edwards, Kevin Dean [ORNL; Wagner, Robert M [ORNL; Briggs, Thomas E [ORNL

2010-01-01T23:59:59.000Z

257

Cybersecurity Dynamics Shouhuai Xu  

E-Print Network [OSTI]

Cybersecurity Dynamics Shouhuai Xu Department of Computer Science, University of Texas at San Antonio ABSTRACT We explore the emerging field of Cybersecurity Dynamics, a candidate foundation for the Science of Cybersecurity. Keywords Cybersecurity dynamics, security model, security analysis 1

Xu, Shouhuai

258

13th Winter Workshop on Nuclear Dynamics W.J. Llope Marathon Key, Florida, February 1-8, 1997 Rice University  

E-Print Network [OSTI]

, February 1-8, 1997 Rice University TPC · 24+2 outer, and 24+2 inner, sectors built & tested · gas vessel13th Winter Workshop on Nuclear Dynamics W.J. Llope Marathon Key, Florida, February 1-8, 1997 Rice superconducting rings · Ions from A~200 to polarized-p; also p+A · Magnets look great, "Super Sunday" sextant test

Llope, William J.

259

Dynamic Management of TurboMode in Modern Multi-core Chips David Lo and Christos Kozyrakis  

E-Print Network [OSTI]

. These applications demand both high throughput to sup- port large number of users and low latency to meet Quality/$ up to +8%), energy-delay product (ED, up to +47%), and energy-delay-squared product (ED2, up to +68 systems. This is particularly the case for large-scale datacenters (DCs) that host demanding popular

Kozyrakis, Christos

260

Brandeis University Brown University  

E-Print Network [OSTI]

Institute of Technology McGill University Michigan State University New York University Northwestern University of Kansas University of Maryland, College Park University of Michigan University of MinnesotaBrandeis University Brown University California Institute of Technology Carnegie Mellon University

Jiang, Huiqiang

Note: This page contains sample records for the topic "turbo dynamics university" 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

Dynamic Performance and Control of a Multilevel Universal Power Conditioner Leon M. Tolbert, Fang Z. Peng Thomas G. Habetler  

E-Print Network [OSTI]

-to-back diode-clamped inverters that constitute the universal power conditioner. An experimental verification. To meet the objectives detailed in these new premium power agreements, the implementation of advanced- clamped inverter into a universal power conditioner is an enticing prospect. For a multilevel universal

Tolbert, Leon M.

262

Dynamic Rotor Deformation and Vibration Monitoring Using a Non-Incremental Laser Doppler Distance Sensor  

SciTech Connect (OSTI)

Monitoring rotor deformations and vibrations dynamically is an important task for improving the safety and the lifetime as well as the energy efficiency of motors and turbo machines. However, due to the high rotor speed encountered in particular at turbo machines, this requires concurrently a high measurement rate and high accuracy, which can not be fulfilled by most commercially available sensors. To solve this problem, we developed a non-incremental laser Doppler distance sensor (LDDS), which is able to measure simultaneously the in-plane velocity and the out-of-plane position of moving rough solid objects with micrometer precision. In addition, this sensor concurrently offers a high temporal resolution in the microsecond range, because its position uncertainty is in principle independent of the object velocity in contrast to conventional distance sensors, which is a unique feature of the LDDS. Consequently, this novel sensor enables precise and dynamic in-process deformation and vibration measurements on rotating objects, such as turbo machine rotors, even at very high speed. In order to evidence the capability of the LDDS, measurements of rotor deformations (radial expansion), vibrations and wobbling motions are presented at up to 50,000 rpm rotor speed.

Pfister, Thorsten; Guenther, Philipp; Dreier, Florian; Czarske, Juergen [Technische Universitaet Dresden, Faculty of Electrical Engineering and Information Technology, Laboratory for Measurement and Testing Techniques, Helmholtzstrasse 18, D-01062 Dresden (Germany)

2010-05-28T23:59:59.000Z

263

1 Copyright 2004 by ASME Proceedings of ASME Turbo Expo 2004  

E-Print Network [OSTI]

Combustion turbine engines have become an integral part of our daily lives through propelling aircraft, tanks Institute and State University Blacksburg, VA 24061 ABSTRACT In gas turbine development, the direction has been towards higher turbine inlet temperatures to increase the work output and thermal efficiency

Thole, Karen A.

264

1 Copyright 2003 by ASME Proceedings of ASME Turbo Expo 2003  

E-Print Network [OSTI]

TEMPERATURES IN A TURBINE VANE PASSAGE Andrew T. Lethander and Karen A. Thole Mechanical Engineering Department Virginia Polytechnic Institute and State University Blacksburg, VA 24060 Gary Zess and Joel Wagner Pratt increasingly important in the design of modern gas turbines due to several fundamental trends in gas turbine

Thole, Karen A.

265

eScholarship provides open access, scholarly publishing services to the University of California and delivers a dynamic  

E-Print Network [OSTI]

Peer Reviewed Title: Synchrony in dynamics of giant kelp forests is driven by both local recruitment://www.escholarship.org/uc/item/7vw6c5gg Keywords: giant kelp, Landsat, Macrocystis pyrifera, Moran effect, population dynamics kelp (Macrocystis pyrifera) canopy biomass to examine population synchrony in southern California kelp

Cavanaugh, Kyle

266

Dynamic fracture of granular material under quasi-static loading , The Institute of Earth Sciences, The Hebrew University of Jerusalem  

E-Print Network [OSTI]

Dynamic fracture of granular material under quasi-static loading Amir Sagy1 , The Institute;Abstract The dynamics of rapid fracture in heterogeneous grainy media are studied in a series of laboratory experiments in which artificial rock slab is fractured under conditions of uniaxial tension. By performing

Fineberg, Jay

267

The dynamics of the early universe and the initial conditions for inflation in a model with radiation and a Chaplygin gas  

E-Print Network [OSTI]

The modeling of the early universe is done through the quantization of a Friedmann-Robertson-Walker model with positive curvature. The material content consists of two fluids: radiation and Chaplygin gas. The quantization of these models is made by following the Wheeler and DeWitt's prescriptions. Using the Schutz formalism, the time notion is recovered and the Wheeler-DeWitt equation transforms into a time dependent Schr\\"{o}dinger equation, which rules the dynamics of the early universe, under the action of an effective potential $V_{ef}$. Using a finite differences method and the Crank-Nicholson scheme, in a code implemented in the program OCTAVE, we solve the corresponding time dependent Schr\\"{o}dinger equation and obtain the time evolution of a initial wave packet. This wave packet satisfies appropriate boundary conditions. The calculation of the tunneling probabilities shows that the universe may emerge from the Planck era to an inflationary phase. It also shows that, the tunneling probability is a function of the mean energy of the initial wave packet and of two parameters related to the Chaplygin gas. We also show a comparison between these results and those obtained by the WKB approximation.

G. A. Monerat; G. Oliveira-Neto; E. V. Corrêa Silva; L. G. Ferreira Filho; P. Romildo Jr.; J. C. Fabris; R. Fracalossi; F. G. Alvarenga; S. V. B. Gonçalves

2007-04-19T23:59:59.000Z

268

eScholarship provides open access, scholarly publishing services to the University of California and delivers a dynamic  

E-Print Network [OSTI]

and delivers a dynamic research platform to scholars worldwide. Peer Reviewed Title: Climate Change and San://escholarship.org/uc/item/8j20685w Keywords: Salt marshes, brackish tidal wetlands, freshwater tidal wetlands, climate change, salinity, sea- level rise, Mediterranean-climate Local Identifier: jmie_sfews_11145 Abstract: Climate

Parker, V. Thomas

269

eScholarship provides open access, scholarly publishing services to the University of California and delivers a dynamic  

E-Print Network [OSTI]

Keywords: Fenestration, window frames, heat transfer modeling, U-value, thermal transmittance, frame cavity of the overall window area, their impact on the total window heat transfer rates may be much larger. This effecteScholarship provides open access, scholarly publishing services to the University of California

270

eScholarship provides open access, scholarly publishing services to the University of California and delivers a dynamic  

E-Print Network [OSTI]

of California, in cooperation with the State of California Business, Transportation, and Housing Agency, or regulation. Report for MOU 319 CALIFORNIA PATH PROGRAM INSTITUTE OF TRANSPORTATION STUDIES UNIVERSITYDepartment of Electrical Engineering and Computer Sciences University of California, Berkeley Berkeley, CA 94720

Lynch, Nancy

271

Aachen RWTH Aarhus University Aberdeen University Adelaide University Alabama University Alberta University Amsterdam University Arizona University Auckland University Australian National University Bath University Beijing  

E-Print Network [OSTI]

Massachusetts University Massey University McGill University McMaster University Melbourne University Michigan State University Michigan University Minnesota University Monash University Montpellier UniversityAachen RWTH Aarhus University Aberdeen University Adelaide University Alabama University Alberta

Tisdell, Chris

272

Real-Time Observation of Platinum Redispersion on Ceria-Based Oxide by In-situ Turbo-XAS in Fluorescence Mode  

SciTech Connect (OSTI)

A real-time observation of the redispersion behavior of sintered Pt on ceria-based oxide was made possible by in-situ time-resolved Turbo-XAS in fluorescence mode. 2 wt% Pt/Ce-Zr-Y mixed oxide samples were prepared, and then treated under an aging condition. The average Pt particle size measured by CO absorption method after aging was 7 nm. Redispersion treatments of the previously aged catalyst were carried out at 600 deg. C within an in-situ XAS cell in a cyclical flow of reducing/oxidizing gases. Pt L3-edge XANES spectra were collected every 1.1 second under in-situ conditions. From a change in the XANES spectra, we observed that the Pt particle size of the aged catalyst decreased from 7 to 5 nm after 60 seconds and then to 3 nm after 1000 seconds.

Nagai, Yasutaka; Dohmae, Kazuhiko; Tanabe, Toshitaka; Shinjoh, Hirofumi [TOYOTA Central R and D Labs., Inc., Nagakute, Aichi, 480-1192 (Japan); Takagi, Nobuyuki [TOYOTA Motor Corporation Higashi-fuji Technical Center, Shizuoka, 410-1193 (Japan); Ikeda, Yasuo [TOYOTA Motor Europe Technical Centre, Zaventem, B-1930 (Belgium); Guilera, Gemma; Pascarelli, Sakura; Newton, Mark [European Synchrotron Radiation Facility, Grenoble, F-38043 (France); Matsumoto, Shin'ichi [TOYOTA Motor Corporation, Toyota, Aichi, 471-8572 (Japan)

2007-02-02T23:59:59.000Z

273

Risk-Averse Stochastic Dual Dynamic Programming  

E-Print Network [OSTI]

Feb 27, 2013 ... dynamic programming for hydroelectricity generation, Technical report, Electric Power Opti- mization Centre, University of Auckland, ...

2013-02-27T23:59:59.000Z

274

What do University of Michigan Math Majors do? Luis Acuna has written a book on interfacing Turbo Pascal and assembly language. He teaches at the Instituto  

E-Print Network [OSTI]

for Towers Perrin, a global human resources consulting firm. He is also an Associate in the Society. Erin Hendrick '00 is an Associate in the Professional Development Center for Towers Perrin, which, the research and development arm of Lucent Technologies, which produces switching and transmission equipment

Moore, Kristen

275

Social Dynamics Introduction  

E-Print Network [OSTI]

: University of Utah Press. 47-69. Part II: Importance of Dynamics Introduction to part II 1. Trust, Risk Jason Alexander) (1999) The Journal of Philosophy. 96: 588-598. 3. Stability and Explanatory Significance of Some Simple Evolutionary Models (2000) Philosophy of Science 67: 94-113. 4. Dynamics

Barrett, Jeffrey A.

276

Risk Price Dynamics Jaroslav Borovicka  

E-Print Network [OSTI]

Risk Price Dynamics Jaroslav Borovicka University of Chicago Lars Peter Hansen University November 11, 2009 Abstract We present a novel approach to depicting asset pricing dynamics by characterizing shock exposures and prices for alternative investment horizons. We quantify the shock exposures

Hansen, Lars Peter

277

‘Boundary’ an expression of the dynamic unity between man and environment Building a paradigm to unravel the mind’s fundamental kinship with the cosmos and its role as the vehicle of the universe’s unfolding meaning   

E-Print Network [OSTI]

The aim of this thesis is to build a paradigm to unravel the human mind’s fundamental kinship with the cosmos and its role as the vehicle of the universe’s unfolded meaning. The concept of ‘boundary’ is presented as a ...

Saridaki, Maria

2012-11-28T23:59:59.000Z

278

Department of Physics Columbia University  

E-Print Network [OSTI]

Department of Physics Columbia University Copyright A. J. Millis 2012 Dynamical Mean Field Theory: Basic ideas and cluster extensions A. J. Millis Department of Physics Columbia University Support: NSF DMR 10006282, DOE ER-046169 and ARO 056032PH #12;Department of Physics Columbia University Copyright A

Millis, Andrew

279

University of Colorado at Boulder | University Libraries | University Libraries Staff Association LIBRARY-SPEAK CHEAT SHEET  

E-Print Network [OSTI]

University of Colorado at Boulder | University Libraries | University Libraries Staff Association 1 of information resources in a dynamic, collaborative environment." http://www.ala.org/alcts/ Alliance Colorado "AMRC is a rare music repository dedicated to exploring the rich tradition of American music." http://ucblibraries.colorado

Stowell, Michael

280

Archetypal energy landscapes: Dynamical diagnosis Florin Despa  

E-Print Network [OSTI]

Archetypal energy landscapes: Dynamical diagnosis Florin Despa Department of Chemistry, University studies have identified several motifs for potential energy surfaces corresponding to distinct dynamic and thermodynamic properties. The corresponding disconnectivity graphs were identified as ``palm tree,'' ``willow

Berry, R. Stephen

Note: This page contains sample records for the topic "turbo dynamics university" 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

michigan state university college of engineering  

E-Print Network [OSTI]

of the wave disk engine. This technology uses turbo combustion to convert liquid fuel or compressed natural gas or hydrogen into electrical power. The goal is to increase fuel efficiency for hybrid vehicles

282

BMW Diesel - Engine Concepts for Efficient Dynamics  

Broader source: Energy.gov (indexed) [DOE]

"24 Hours of Nrburgring" 2001 - 2nd Gen. Common Rail (1600 bar) 2004 - Variable Twin Turbo - Diesel Particulate Filter of 2nd Gen. 1999 - First V8 Diesel Sedan in Premium...

283

COLLOQUIUM: Controlling Quantum Dynamics | Princeton Plasma Physics...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Controlling Quantum Dynamics Professor Herschel Rabitz Princeton University Contact Information Coordinator(s): Miss Carol Ann Au caustin@pppl.gov Host(s): Dr. Elena Belova ebelova...

284

Dependence of Turing pattern wavelength on diffusion rate Center for Nonlinear Dynamics and Department of Physics, The University of Texas at Austin, Austin,  

E-Print Network [OSTI]

Dependence of Turing pattern wavelength on diffusion rate Qi Ouyang Center for Nonlinear Dynamics of reactants and the wavelength of Turing patterns is examined in experiments on the chlorite 0.13­ 0.28 mm varies in accord with the predicted relation for Turing patterns, D1/2 . Moreover

Texas at Austin. University of

285

Advanced Radar Research Center The University of Oklahoma seeks an exceptional, dynamic leader to serve as Director of its Advanced Radar Research Center  

E-Print Network [OSTI]

industry and federal agencies and carries out a vigorous program of teaching, research, and service in the world, housing twelve University of Oklahoma, state, and federal organizations with more than 650 of Electrical and Computer Engineering is housed nearby in the new Devon Energy Hall. The ARRC Director provides

Oklahoma, University of

286

View dependent fluid dynamics  

E-Print Network [OSTI]

VIEW DEPENDENT FLUID DYNAMICS A Thesis by BRIAN ARTHUR BARRAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 2006 Major Subject: Visualization... Sciences VIEW DEPENDENT FLUID DYNAMICS A Thesis by BRIAN ARTHUR BARRAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Donald...

Barran, Brian Arthur

2006-08-16T23:59:59.000Z

287

Cyclic Macromolecules: Dynamics and Nonlinear Rheology, Final Report DOE Award # DE-FG02-05ER46218, Texas Tech University  

SciTech Connect (OSTI)

The work described in the present report had the original goal to produce large, entangled, ring polymers that were uncontaminated by linear chains and to characterize by rheological methods the dynamics of these rings. While the work fell short of this specific goal, the outcomes of the research performed under support from this grant provided novel macromolecular synthesis methods, new separation methods for ring and linear chains, and novel rheological data on bottle brush polymers, wedge polymers and dendron-based ring molecules. The grant funded a total of 8 archival manuscripts and one patent, all of which are attached to the present report.

Gregory B. McKenna; Robert H. Grubbs; Julia A. Kornfield

2012-04-25T23:59:59.000Z

288

Universality class of holographic superconductors  

E-Print Network [OSTI]

We study "holographic superconductors" in various spacetime dimensions. We compute most of the static critical exponents in the linear perturbations and show that they take the standard mean-field values. We also consider the dynamic universality class for these models and show that they belong to model A with dynamic critical exponent z=2.

Kengo Maeda; Makoto Natsuume; Takashi Okamura

2010-05-14T23:59:59.000Z

289

Shape Dynamics. An Introduction  

E-Print Network [OSTI]

Shape dynamics is a completely background-independent universal framework of dynamical theories from which all absolute elements have been eliminated. For particles, only the variables that describe the shapes of the instantaneous particle configurations are dynamical. In the case of Riemannian three-geometries, the only dynamical variables are the parts of the metric that determine angles. The local scale factor plays no role. This leads to a shape-dynamic theory of gravity in which the four-dimensional diffeomorphism invariance of general relativity is replaced by three-dimensional diffeomorphism invariance and three-dimensional conformal invariance. Despite this difference of symmetry groups, it is remarkable that the predictions of the two theories -- shape dynamics and general relativity -- agree on spacetime foliations by hypersurfaces of constant mean extrinsic curvature. However, the two theories are distinct, with shape dynamics having a much more restrictive set of solutions. There are indications that the symmetry group of shape dynamics makes it more amenable to quantization and thus to the creation of quantum gravity. This introduction presents in simple terms the arguments for shape dynamics, its implementation techniques, and a survey of existing results.

Julian Barbour

2011-05-01T23:59:59.000Z

290

Prof. Michael Mauel Columbia University  

E-Print Network [OSTI]

Prof. Michael Mauel Columbia University Exploring Plasma Dynamics with Laboratory Magnetospheres, and control the high-temperature plasma trapped in three large laboratory magneto- spheres, at Columbia University, MIT, and the Uni- versity of Tokyo. With its high-field superconduct- ing magnets, the Levitated

Mauel, Michael E.

291

Proceedings of Turbo Expo 2003 2003 ASME Turbo Expo  

E-Print Network [OSTI]

from the compressor and pass this air into the serpentine coolant flow passages within the turbine durability requirements, section-averaged centrifugal stress limitations should be satisfied, concentrations

Dennis, Brian

292

university of saskatchewan alumni handbook university of  

E-Print Network [OSTI]

university of saskatchewan alumni handbook university of saskatchewan alumni handbook university of saskatchewan alumni handbook university of saskatchewan alumni handbook university of saskatchewan alumni handbook university of saskatchewan alumni handbook university of saskatchewan alumni handbook university

Saskatchewan, University of

293

Regenerative Heater Optimization for Steam Turbo-Generation Cycles of Generation IV Nuclear Power Plants with a Comparison of Two Concepts for the Westinghouse International Reactor Innovative and Secure (IRIS)  

SciTech Connect (OSTI)

The intent of this study is to discuss some of the many factors involved in the development of the design and layout of a steam turbo-generation unit as part of a modular Generation IV nuclear power plant. Of the many factors involved in the design and layout, this research will cover feed water system layout and optimization issues. The research is arranged in hopes that it can be generalized to any Generation IV system which uses a steam powered turbo-generation unit. The research is done using the ORCENT-II heat balance codes and the Salisbury methodology to be reviewed herein. The Salisbury methodology is used on an original cycle design by Famiani for the Westinghouse IRIS and the effects due to parameter variation are studied. The vital parameters of the Salisbury methodology are the incremental heater surface capital cost (S) in $/ft{sup 2}, the value of incremental power (I) in $/kW, and the overall heat transfer coefficient (U) in Btu/ft{sup 2}-degrees Fahrenheit-hr. Each is varied in order to determine the effects on the cycles overall heat rate, output, as well as, the heater surface areas. The effects of each are shown. Then the methodology is then used to compare the optimized original Famiani design consisting of seven regenerative feedwater heaters with an optimized new cycle concept, INRC8, containing four regenerative heaters. The results are shown. It can be seen that a trade between the complexity of the seven stage regenerative Famiani cycle and the simplicity of the INRC8 cycle can be made. It is desired that this methodology can be used to show the ability to evaluate modularity through the value of size a complexity of the system as well as the performance. It also shows the effectiveness of the Salisbury methodology in the optimization of regenerative cycles for such an evaluation.

Williams, W.C.

2002-08-01T23:59:59.000Z

294

Modeling Dynamics of Post Disaster Recovery  

E-Print Network [OSTI]

Subject: Civil Engineering iii ABSTRACT Modeling Dynamics of Post Disaster Recovery. (August 2011) Ali Nejat, B.S., Zanjan University, Zanjan, Iran; M.S., Islamic Azad University, Tehran, Iran Chair of Advisory Committee: Dr. Ivan Damnjanovic... MODELING DYNAMICS OF POST DISASTER RECOVERY A Dissertation by ALI NEJAT Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY...

Nejat, Ali

2012-10-19T23:59:59.000Z

295

FACILITATORY NEURAL DYNAMICS FOR PREDICTIVE EXTRAPOLATION  

E-Print Network [OSTI]

FACILITATORY NEURAL DYNAMICS FOR PREDICTIVE EXTRAPOLATION A Dissertation by HEE JIN LIM Submitted DYNAMICS FOR PREDICTIVE EXTRAPOLATION A Dissertation by HEE JIN LIM Submitted to Texas A&M University: Computer Science #12;iii ABSTRACT Facilitatory Neural Dynamics for Predictive Extrapolation. (August 2006

Choe, Yoonsuck

296

University Library University of Saskatchewan  

E-Print Network [OSTI]

University Library University of Saskatchewan Core Competencies for University of Saskatchewan Librarians This document defines the basic knowledge and skills librarians at the University of Saskatchewan as reflected in Promise and Potential: The Third Integrated Plan 2012 to 2016 , University of Saskatchewan

Saskatchewan, University of

297

Volvo Super Truck Overview and Approach  

Broader source: Energy.gov (indexed) [DOE]

State University Volvo Technology High Efficiency Combustion - Waste Heat Recovery - Turbo-Compound - Downspeeding - ... Advanced Driver Aids Rolling Resistance Reduction...

298

Tuning universality far from equilibrium  

E-Print Network [OSTI]

Possible universal dynamics of a many-body system far from thermal equilibrium are explored. A focus is set on meta-stable non-thermal states exhibiting critical properties such as self-similarity and independence of the details of how the respective state has been reached. It is proposed that universal dynamics far from equilibrium can be tuned to exhibit a dynamical phase transition where these critical properties change qualitatively. This is demonstrated for the case of a superfluid two-component Bose gas exhibiting different types of long-lived but non-thermal critical order. Scaling exponents controlled by the ratio of experimentally tuneable coupling parameters offer themselves as natural smoking guns. The results shed light on the wealth of universal phenomena expected to exist in the far-from-equilibrium realm.

Markus Karl; Boris Nowak; Thomas Gasenzer

2013-02-05T23:59:59.000Z

299

Copyright 2000 by ASME1 ASME paper 2000-GT-0253, ASME IGTI Turbo-Expo-2000, Munich, Germany, May 8-11, 2000.  

E-Print Network [OSTI]

TURBINE BLADE MATERIAL Zhen-Xue Han 1 Department of Mechanical and Aerospace Engineering The University-field and in the solid material of the structure thus automatically predicting correct magnitudes and distribution temperature of internally cooled gas turbine blade. This approach eliminates the need to specify hot surface

Dennis, Brian

300

Dynamics of generalized tachyon field  

E-Print Network [OSTI]

We investigate the dynamics of generalized tachyon field in FRW spacetime. We obtain the autonomous dynamical system for the general case. Because the general autonomous dynamical system cannot be solved analytically, we discuss two cases in detail: $\\beta=1$ and $\\beta=2$. We find the critical points and study their stability. At these critical points, we also consider the stability of the generalized tachyon field, which is as important as the stability of critical points. The possible final states of the universe are discussed.

Rong-Jia Yang; Jingzhao Qi

2012-08-06T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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.


301

Charles Darwin University Flinders University Griffith University James Cook University La Trobe University Murdoch University The University of Newcastle Biography for GLOVER, Professor Barney  

E-Print Network [OSTI]

University Murdoch University The University of Newcastle Biography for GLOVER, Professor Barney Vice Chancellor, Charles Darwin University Professor Barney Glover is Vice-Chancellor of Charles Darwin University

302

Cardiff University The Way Forward  

E-Print Network [OSTI]

· Subsidiarity · Dynamism · Accountability · Self-determination · Environmental and social sustainability Guiding. Printed on 100% recycled paper, in line with the University's commitment to sustainability www.cardiff.ac.uk/sustainability the achievement of outstanding quality. The College of Arts, Humanities and Social Sciences aims to transform

Davies, Christopher

303

Brain dynamics promotes function Carlos Lourenco  

E-Print Network [OSTI]

Brain dynamics promotes function Carlos Louren¸co 1 Faculty of Sciences of the University of Lisbon, 1049-001 Lisboa - Portugal Abstract. Dynamical structure in the brain promotes biological func- tion. Computational scientists have new opportunities to receive 'algorithmic' inspiration from brain processes

Lisboa, Universidade Técnica de

304

Idealized Test Cases for Dynamical Core Experiments  

E-Print Network [OSTI]

Idealized Test Cases for Dynamical Core Experiments Christiane Jablonowski (University of Michigan-13/2006 #12;Motivation · Test cases for 3D dynamical cores on the sphere ­ are hard to find in the literature groups ­ lack standardized & easy-to-use analysis techniques · Idea: Establish a collection of test cases

Jablonowski, Christiane

305

LECTURES IN ELEMENTARY FLUID DYNAMICS  

E-Print Network [OSTI]

LECTURES IN ELEMENTARY FLUID DYNAMICS: Physics, Mathematics and Applications J. M. McDonough Departments of Mechanical Engineering and Mathematics University of Kentucky, Lexington, KY 40506-0503 c 1987, 1990, 2002, 2004, 2009 #12;Contents 1 Introduction 1 1.1 Importance of Fluids

McDonough, James M.

306

OLD DOMINION UNIVERSITY University Policies and Procedures  

E-Print Network [OSTI]

AND ADMINISTRATOR RECRUITMENT FUNDING PROCEDURE Statement: University Recruitment Budget (1) The university6010 - 1 OLD DOMINION UNIVERSITY University Policies and Procedures 6010 - FACULTY maintains a central budget, called the University Recruitment Budget, for the support of essential

307

1 Columbia University--The University Seminars COLUMBIA UNIVERSITY  

E-Print Network [OSTI]

1 Columbia University--The University Seminars COLUMBIA UNIVERSITY T H E U N I V E R S I T Y S E M. Belknap Professor Emeritus of Russian, Columbia University, Director Emeritus of The University Seminars, Columbia University Susan Boynton Associate Professor of Music, Columbia University Ester Fuchs Professor

Champagne, Frances A.

308

Quintessence Scalar Field: A Dynamical Systems Study  

E-Print Network [OSTI]

The present work deals with a dynamical systems study of quintessence potentials leading to the present accelerated expansion of the universe. The principal interest is to check for late time attractors which give an accelerated expansion for the universe. Two examples are worked out, namely the exponential and the power-law potentials.

Nandan Roy; Narayan Banerjee

2014-02-27T23:59:59.000Z

309

DYNAMIC DETECTION OF WORKLOAD EXECUTION PHASES  

E-Print Network [OSTI]

: Electrical Engineering New Mexico State University Las Cruces, New Mexico July 2002 #12;ii "Dynamic Detection;v VITA June 20, 1980 Born in Alamogordo, New Mexico. 1998 Graduated from Alamogordo High School, Alamogordo, New Mexico. 1998-2002 B.S., New Mexico State University, Las Cruces, New Mexico. 2000 and 2001

Johnson, Eric E.

310

Mapping molecular dynamics computations to hypercubes  

E-Print Network [OSTI]

December 1993 Major Subject: ('omputer Science MAPPING MOLECULAR DYNAMICS COMPUTATIONS TO HYPERCUBES A Thesis by VAMSEE IvRISHNA LAIvAMSANI Submitted to Texas AX. 'M University in partial fnlfillment of the requirements for the degree of lv... for systematic modeling, mapping and perfornianrc analysis of a Grand Challenge application problein in computational biology called Moleru- lar Dynamics S&tnufat&un uj Proteins Molecular Dynamics (MD) is an important techn&que used m computational...

Lakamsani, Vamsee Krishna

1993-01-01T23:59:59.000Z

311

Complex Dynamics  

E-Print Network [OSTI]

Complex Dynamics Bernardo Da Costa, Koushik Ramachandran, Jingjing Qu, and I had a two semester learning seminar in complex analysis and potential ...

312

A Decrumpling Model of the Universe  

E-Print Network [OSTI]

Assuming a cellular structure for the space-time, we propose a model in which the expansion of the universe is understood as a decrumpling process, much like the one we know from polymeric surfaces. The dimension of space is then a dynamical real variable. The generalized Friedmann equation, derived from a Lagrangian, and the generalized equation of continuity for the matter content of the universe, give the dynamics of our model universe. This leads to an oscillatory non-singular model with two turning points for the dimension of space.

M. Khorrami; M. Mansouri; M. Mohazzab

1996-07-23T23:59:59.000Z

313

Biosystem Dynamics & Design | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Biosystem Dynamics & Design Overview Atmospheric Aerosol Systems Biosystem Dynamics & Design Energy Materials & Processes Terrestrial & Subsurface Ecosystems Biosystem Dynamics &...

314

DIMACS Center Rutgers University  

E-Print Network [OSTI]

Hopkins University Andrew Patrick, NRC Canada Norman Sadeh, Carnegie Mellon University Working Group University Mark Ackerman, University of Michigan Fabian Monrose, Johns Hopkins University Andrew Patrick, NRC Canada Norman Sadeh, Carnegie Mellon University Workshop: Cryptography: Theory Meets Practice Dates

315

ADMINISTRATIVE UNIVERSITY POLICY  

E-Print Network [OSTI]

ADMINISTRATIVE UNIVERSITY POLICY FACULTY UNIVERSITY POLICY STUDENT UNIVERSITY POLICY Issue stakeholder list "Log-In" of Proposed University Policy with the University Compliance Committee (UCC) UCC identifies which track (i.e., Administrative, Faculty, or Student) the proposed University Policy

316

Attractors, Universality and Inflation  

E-Print Network [OSTI]

Studies of the initial conditions for inflation have conflicting predictions from exponential suppression to inevitability. At the level of phase space, this conflict arises from the competing intuitions of CPT invariance and thermodynamics. After reviewing this conflict, we enlarge the ensemble beyond phase space to include scalar potential data. We show how this leads to an important contribution from inflection point inflation, enhancing the likelihood of inflation to an inverse cubic power law. In the process, we emphasize the attractor dynamics of the gravity-scalar system and the existence of universality classes from inflection point inflation. Finally, we comment on the predictivity of inflation in light of these results.

Sean Downes; Bhaskar Dutta; Kuver Sinha

2012-07-27T23:59:59.000Z

317

Beam Dynamics Challenges in High Energy Physics Accelerators!  

E-Print Network [OSTI]

Beam Dynamics Challenges in High Energy Physics Accelerators! Alexander Valishev! University/1/2014!A. Valishev | Beam Dynamics Challenges in HEP Accelerators!2! #12;The Olympic Motto for Accelerators! 12/1/2014!A. Valishev | Beam Dynamics Challenges in HEP Accelerators!3! ENERGY INTENSITY BRIGHTNESS

318

Department of Computing Science and Mathematics University of Stirling  

E-Print Network [OSTI]

Department of Computing Science and Mathematics University of Stirling Gen-O-Fix: An embeddable and Mathematics University of Stirling Gen-O-Fix: An embeddable framework for Dynamic Adaptive Genetic Improvement and Mathematics University of Stirling Stirling FK9 4LA, Scotland Telephone +44 1786 467 421, Facsimile +44 1786

Fernandez, Thomas

319

Dynamics of Charged Events  

SciTech Connect (OSTI)

In three spacetime dimensions the world volume of a magnetic source is a single point, an event. We make the event dynamical by regarding it as the imprint of a flux-carrying particle impinging from an extra dimension. This can be generalized to higher spacetime dimensions and to extended events. We exhibit universal observable consequences of the existence of events and argue that events are as important as particles or branes. We explain how events arise on the world volume of membranes in M theory, and in a Josephson junction in superconductivity.

Bachas, Constantin [Laboratoire de Physique Theorique de l'Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris cedex (France); Bunster, Claudio [Centro de Estudios Cientificos (CECS), Avenida Arturo Prat 514, Valdivia (Chile); Henneaux, Marc [Physique Theorique et Mathematique, Universite Libre de Bruxelles and International Solvay Institutes, ULB Campus Plaine C.P. 231, 1050 Bruxelles (Belgium); Centro de Estudios Cientificos (CECS), Avenida Arturo Prat 514, Valdivia (Chile)

2009-08-28T23:59:59.000Z

320

CONSORTIUM MEMBERS EU Universities  

E-Print Network [OSTI]

coordinator > University of Tirana, Albania > University of Sarajevo, Bosnia & Herzegovina > South East Foundation, Belgium > University of Tuzla, Bosnia & Herzegovina > Roma Virtual Network, Israel > University

Heermann, Dieter W.

Note: This page contains sample records for the topic "turbo dynamics university" 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

University of Michigan, Ann Arbor Indiana University, Bloomington  

E-Print Network [OSTI]

/ 1 #12; 2005 4 University of Michigan, Ann Arbor Indiana University, Bloomington University of Illinois, Urbana-Champagne University of Michigan, Ann Arbor 19 Center University of Michigan, Georgetown University, University of Nebraska, University of Kansas University

Wu, Yih-Min

322

FOCUS ISSUE: Nonlinear dynamics related to polymeric systems Overview: Nonlinear dynamics related to polymeric systems  

E-Print Network [OSTI]

FOCUS ISSUE: Nonlinear dynamics related to polymeric systems Overview: Nonlinear dynamics related to polymeric systems Irving R. Epstein Department of Chemistry, Brandeis University, Waltham, Massachusetts is known about nonlinear phenom- ena in polymeric systems. One reason for the lack of interest in nonlinear

Epstein, Irving R.

323

Dynamical Transition and Heterogeneous Hydration Dynamics in RNA  

E-Print Network [OSTI]

Enhanced dynamical fluctuations of RNAs, facilitated by a network of water molecules with strong interactions with RNA, are suspected to be critical in their ability to respond to a variety of cellular signals. Using atomically detailed molecular dynamics simulations at various temperatures of purine (adenine)- and preQ$_1$ sensing riboswitch aptamers, we show that water molecules in the vicinity of RNAs undergo complex dynamics depending on the local structures of the RNAs. The overall lifetimes of hydrogen bonds (HBs) of surface bound waters are more than at least 1-2 orders of magnitude longer than bulk water. Slow hydration dynamics, revealed in non-Arrhenius behavior of the relaxation time, arises from high activation barriers to break water hydrogen bonds with a nucleotide and by reduced diffusion of water. The relaxation kinetics at specific locations in the two RNAs show a broad spectrum of time scales reminiscent of glass-like behavior, suggesting that the hydration dynamics is highly heterogeneous. Both RNAs undergo dynamic transition at $T = T_D \\gtrsim 200$ K as assessed by the mean square fluctuation of hydrogen atoms $\\langle x^2\\rangle$, which undergoes an abrupt harmonic-to-anharmonic transition at $T_D$. The near universal value of $T_D$ found for these RNAs and previously for tRNA is strongly correlated with changes in hydration dynamics as $T$ is altered. Hierarchical dynamics of waters associated with the RNA surface, revealed in the motions of distinct classes of water with well-separated time scales, reflects the heterogeneous local environment on the molecular surface of RNA. At low temperatures slow water dynamics predominates over structural transitions. Our study demonstrates that the complex interplay of dynamics between water and local environment in the RNA structures could be a key determinant of the functional activities of RNA.

Jeseong Yoon; Jong-Chin Lin; Changbong Hyeon; D. Thirumalai

2014-04-24T23:59:59.000Z

324

BIOTROPICA *(*): ****** **** 10.1111/j.1744-7429.2007.00337.x Impact of Research Trails on Seedling Dynamics in a Tropical Forest  

E-Print Network [OSTI]

on Seedling Dynamics in a Tropical Forest Liza S. Comita1 Department of Biology, University of Georgia, Athens

Goldsmith, Greg

325

University of Colorado University of Colorado Boulder  

E-Print Network [OSTI]

University of Colorado Boulder University of Colorado Boulder University of Colorado Boulder University of Colorado Boulder University of Colorado Boulder Catalog 2012­13 Redefining Teaching & Learning­13 UNIVERSITY OF COLORADO BOULDER CATALOG contains a summary of campus offerings, policies, and requirements

Mojzsis, Stephen J.

326

University Archives University of Missouri at Columbia  

E-Print Network [OSTI]

University Archives University of Missouri at Columbia 703 Lewis Hall University of Missouri-Columbia Archives of the University of Missouri at Columbia reserves the right to refuse permission to individuals agree to credit the University Archives of the University of Missouri at Columbia in accordance

Taylor, Jerry

327

Nonequilibrium molecular dynamics simulations of confined fluids in contact with the bulk  

E-Print Network [OSTI]

Nonequilibrium molecular dynamics simulations of confined fluids in contact with the bulk Luzheng Zhang, Ramkumar Balasundaram,a) and Stevin H. Gehrke Department of Chemical Engineering, Kansas State University, Manhattan, Kansas 66506 Shaoyi Jiangb) Department of Chemical Engineering, University

Zhang, Luzheng

328

NOVEL APROACH TO PROCESS SYNTHESIS BASED ON DYNAMIC OPTIMIZATION AND EXPLOITION OF PROCESS  

E-Print Network [OSTI]

NOVEL APROACH TO PROCESS SYNTHESIS BASED ON DYNAMIC OPTIMIZATION AND EXPLOITION OF PROCESS Center for Systems and Control, Delft University of Technology, 2 Process & Energy Department, Delft University of Technology Traditionally, process synthesis consists of three consecutive phases: i) selection

Van den Hof, Paul

329

Recycling universe  

E-Print Network [OSTI]

If the effective cosmological constant is non-zero, our observable universe may enter a stage of exponential expansion. In such case, regions of it may tunnel back to the false vacuum of an inflaton scalar field, and inflation with a high expansion rate may resume in those regions. An ``ideal'' eternal observer would then witness an infinite succession of cycles from false vacuum to true, and back. Within each cycle, the entire history of a hot universe would be replayed. If there were several minima of the inflaton potential, our ideal observer would visit each one of these minima with a frequency which depends on the shape of the potential. We generalize the formalism of stochastic inflation to analyze the global structure of the universe when this `recycling' process is taken into account.

Jaume Garriga; Alexander Vilenkin

1997-07-26T23:59:59.000Z

330

Estimation of Parameterized Spatio-Temporal Dynamic Models Ke Xu and Christopher K. Wikle  

E-Print Network [OSTI]

Estimation of Parameterized Spatio-Temporal Dynamic Models Ke Xu and Christopher K. Wikle: Christopher K. Wikle, Department of Statistics, University of Missouri, 146 Math Science Building, Columbia

331

E-Print Network 3.0 - adaptive dynamic networks Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

results for: adaptive dynamic networks Page: << < 1 2 3 4 5 > >> 1 Bio-Networking Architecture PI: Tatsuya Suda, University of California, Irvine Summary: the Bio- Networking...

332

Dynamical Heterogeneities in Grains and Foams  

E-Print Network [OSTI]

Dynamical heterogeneities have been introduced in the context of the glass transition of molecular liquids and the lengthscale associated with them has been argued to be at the origin of the observed quasi-universal behaviour of glassy systems. Dense amorphous packings of granular media and foams also exhibit slow dynamics, intermittency and heterogeneities. We review a number of recent experimental studies of these systems, where one has direct access to the relevant space-time dynamics, allowing for direct visualisations of the dynamical heterogeneities. On one hand these visualisations provide a unique opportunity to access the microscopic mechanisms responsible for the growth of dynamical correlations. On the other hand focussing on the differences in these heterogeneities in microscopically different systems allows to discuss the range of the analogies between molecular thermal glasses and athermal glasses such as granular media and foams. Finally this review is the opportunity to discuss various approaches to actually extract quantitatively the dynamical lengthscale from experimental data.

Olivier Dauchot; Douglas J. Durian; Martin van Hecke

2010-10-05T23:59:59.000Z

333

Symbolic dynamics  

E-Print Network [OSTI]

This chapter presents some of the links between automata theory and symbolic dynamics. The emphasis is on two particular points. The first one is the interplay between some particular classes of automata, such as local automata and results on embeddings of shifts of finite type. The second one is the connection between syntactic semigroups and the classification of sofic shifts up to conjugacy.

Béal, M -P; Eilers, S; Perrin, D

2010-01-01T23:59:59.000Z

334

University of Maryland University Health Center  

E-Print Network [OSTI]

special care is taken, should the extracts be lost or damaged, the University Health Center cannot assumeUniversity of Maryland University Health Center ALLERGY INJECTION POLICY The University Health to effectively use our service, we require your cooperation. INSTRUCTIONS Because the University Health Center

Milchberg, Howard

335

UNIVERSITY SPACE POLICY ALLOCATION OF UNIVERSITY SPACE  

E-Print Network [OSTI]

UNIVERSITY COLLEGE DUBLIN UNIVERSITY SPACE POLICY #12;ALLOCATION OF UNIVERSITY SPACE I Purpose To provide a methodology for the allocation of space across the University II Background Due to the university's success in attracting research funding, the need for space and facilities has grown

336

University Archives University of Missouri at Columbia  

E-Print Network [OSTI]

University Archives University of Missouri at Columbia 703 Lewis Hall Columbia, Missouri 65211 of Missouri at Columbia, may be loaned out to University personnel. All items on loan will be listed below on loan from the University Archives, University of Missouri at Columbia. He/She further acknowledges full

Taylor, Jerry

337

Fissile solution dynamics: Student research  

SciTech Connect (OSTI)

There are two research projects in criticality safety at the University of Arizona: one in dynamic simulation of hypothetical criticality accidents in fissile solutions, and one in criticality benchmarks using transport theory. We have used the data from nuclear excursions in KEWB, CRAC, and SILENE to help in building models for solution excursions. An equation of state for liquids containing gas bubbles has been developed and coupled to point-reactor dynamics in an attempt to predict fission rate, yield, pressure, and kinetic energy. It appears that radiolytic gas is unimportant until after the first peak, but that it does strongly affect the shape of the subsequent power decrease and also the dynamic pressure.

Hetrick, D.L.

1994-09-01T23:59:59.000Z

338

A visual simulation playground for engineering dynamics  

E-Print Network [OSTI]

A VISUAL SIMULATION PLAYGROUND FOR ENGINEERING DYNAMICS A Thesis by DONALD BRIAN FONG Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER OF SCIENCE August 2008 Major... Subject: Visualization Sciences A VISUAL SIMULATION PLAYGROUND FOR ENGINEERING DYNAMICS A Thesis by DONALD BRIAN FONG Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER...

Fong, Donald Brian

2008-10-10T23:59:59.000Z

339

"Dark energy" as conformal dynamics of space  

E-Print Network [OSTI]

The exact solution for dynamic of conform-flat space homogeneous since dynamic equation is given. Conform mode of space metric changing in Global time theory has negative energy density. Swap of energy to this mode from another ones lead to increasing of Universe homogeneity although probability of this swap from local objects is negligibly small. Conform mode is corresponding to "dark energy" in observation astronomy.

D. Burlankov

2006-10-23T23:59:59.000Z

340

Dynamic Algorithm for Space Weather Forecasting System  

E-Print Network [OSTI]

for the designation as UNDERGRADUATE RESEARCH SCHOLAR April 2010 Major: Nuclear Engineering DYNAMIC ALGORITHM FOR SPACE WEATHER FORECASTING SYSTEM A Junior Scholars Thesis by LUKE DUNCAN FISCHER Submitted to the Office of Undergraduate... 2010 Major: Nuclear Engineering iii ABSTRACT Dynamic Algorithm for Space Weather Forecasting System. (April 2010) Luke Duncan Fischer Department of Nuclear Engineering Texas A&M University Research Advisor: Dr. Stephen Guetersloh...

Fischer, Luke D.

2011-08-08T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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

Dust-shell Universe in the modified gravity scenario  

E-Print Network [OSTI]

The dynamics of the dust-shell model of universe is exactly solved for the modified Schwarzschild solution. This solution is used to derive the cosmology corresponding to the modified gravity.

Michael Maziashvili

2005-04-15T23:59:59.000Z

342

Dynamic simulation of 10 kW Brayton cryocooler for HTS cable  

SciTech Connect (OSTI)

Dynamic simulation of a Brayton cryocooler is presented as a partial effort of a Korean governmental project to develop 1?3 km HTS cable systems at transmission level in Jeju Island. Thermodynamic design of a 10 kW Brayton cryocooler was completed, and a prototype construction is underway with a basis of steady-state operation. This study is the next step to investigate the transient behavior of cryocooler for two purposes. The first is to simulate and design the cool-down process after scheduled or unscheduled stoppage. The second is to predict the transient behavior following the variation of external conditions such as cryogenic load or outdoor temperature. The detailed specifications of key components, including plate-fin heat exchangers and cryogenic turbo-expanders are incorporated into a commercial software (Aspen HYSYS) to estimate the temporal change of temperature and flow rate over the cryocooler. An initial cool-down scenario and some examples on daily variation of cryocooler are presented and discussed, aiming at stable control schemes of a long cable system.

Chang, Ho-Myung; Park, Chan Woo [Hong Ik University, Department of Mechanical Engineering, Seoul, 121-791 (Korea, Republic of); Yang, Hyung Suk; Hwang, Si Dole [KEPCO Research Institute, Daejeon, 305-760 (Korea, Republic of)

2014-01-29T23:59:59.000Z

343

Measuring Greenland Glacier Dynamics with Remotely Sensed Data  

E-Print Network [OSTI]

Measuring Greenland Glacier Dynamics with Remotely Sensed Data Steve Foga University of Kansas, Geography M.A. Student Photo by: Phil Pasquini The importance of studying glacier ice Study area Difference in ice velocity of Helheim Glacier...

Foga, Steve

2013-01-15T23:59:59.000Z

344

Dynamical Systems and Embedded Cognition Randall D. Beer  

E-Print Network [OSTI]

1 Dynamical Systems and Embedded Cognition Randall D. Beer Cognitive Science Program Dept University Press. Please address all correspondence to: Randall D. Beer Phone: (812) 856-0873 Cognitive

Beer, Randall D.

345

SIMULATING MARKET TRANSFORMATION DYNAMICS USING A HYBRID ENERGY ECONOMY MODEL  

E-Print Network [OSTI]

AT THE ADOPTION OF HYDROGEN FUEL CELL VEHICLES by Jimena Eyzaguirre M.Sc. Geology, University of Western Ontario, to develop policy-relevant information about dynamics in consumer preferences for hydrogen fuel cell vehicles

346

Disease Ecology: Community Structure and Pathogen Dynamics [Review  

E-Print Network [OSTI]

BOOKS & MEDIA Disease Ecology: Community Structure and Pathogen Dynamics Sharon K. Collinge and Chris Ray, editors Oxford University Press, Cary, North Carolina, 2006 ISBN: 0198567073 Pages: 227; Price: US $124.50 The disciplines of community...

Peterson, A. Townsend

2007-01-01T23:59:59.000Z

347

Chemical Dynamics at Metal Surfaces: The Role of Electronic Excitation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Chemical Dynamics at Metal Surfaces: The Role of Electronic Excitations Mar 06 2015 11:00 AM - 12:00 PM John Tully, Yale University, New Haven, Connecticut Joint Institute for...

348

Open University  

ScienceCinema (OSTI)

Michel Pentz est née en Afrique du Sud et venu au Cern en 1957 comme physicien et président de l'associaion du personnel. Il est également fondateur du mouvement Antiapartheid de Genève et a participé à la fondation de l'Open University en Grande-Bretagne. Il nous parle des contextes pédagogiques, culturels et nationaux dans lesquels la méthode peut s'appliquer.

None

2011-04-25T23:59:59.000Z

349

Flavor Dynamics  

E-Print Network [OSTI]

The purpose of BRAHMS is to survey the dynamics of relativistic heavy ion (as well as pp and d-A) collisions over a very wide range of rapidity and transverse momentum. The sum of these data may give us a glimpse of the initial state of the system, its transverse and longitudinal evolution and how the nature of the system changes with time. Here I will concentrate on the origin and dynamics of the light flavors, i.e. the creation and transport of the up, down and strange quarks. The results presented here are certainly not the end of the story. It is my hope that in a few years new detectors will reveal the rapidity dependence of the charm and bottom quarks.

Michael Murray; for the BRAHMS Collaboration

2007-10-24T23:59:59.000Z

350

An efficient method for treating uncertainties in structural dynamics  

E-Print Network [OSTI]

AN EFFICIENT METHOD FOR TREATING UNCERTAINTIES IN STRUCTURAL DYNAMICS A Thesis by BING WANG Submitted to the Oflice of Graduate Studies of Texas ASSAM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...) Alan . Pa zolo (Member) ames . . Yao (Head of D artment) December 1992 ABSTRACT An Efficient Method for Treating Uncertainties in Structural Dynamics. (December 1992) Bing Wang, B. S. , Tsinghua University Chair of Advisory Committee: Dr...

Wang, Bing

1992-01-01T23:59:59.000Z

351

Dynamic Positioning Simulator Dynamic Positioning Simulator  

E-Print Network [OSTI]

Simulator 5 / 24 #12;Dynamic Positioning Simulator Dynamic Positioning Why Dynamic Positioning? Advantages Dynamic Positioning: No tugboats needed; Offshore set-up is quick; Power saving; Precision situations more on Ship: Wind Force Fw = 1 2 air V 2 rw CXw (rw )AT 1 2 air V 2 rw CYw (rw )AL Mw = 1 2 air V 2 rw CMw (rw

Vuik, Kees

352

University Partnerships  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof2014National Nuclear23,DiversityFeet)University

353

Low emission turbo compound engine system  

DOE Patents [OSTI]

A diesel or HHCI engine has an air intake and an exhaust for products of combustion. A pair of turbochargers receive the products of combustion in a series relationship and an exhaust aftertreatment device receive the products of combustion from the downstream turbine. A power turbine receives the output from the exhaust aftertreatment device and an EGR system of the power turbine passes a selected portion of the output to a point upstream of the upstream turbocharger compressor. A device adds fuel to the aftertreatment device to regenerate the particulate filter and the power turbine recoups the additional energy. The power turbine may be used to drive accessories or the prime output of the engine.

Vuk; Carl T. (Denver, IA)

2011-05-31T23:59:59.000Z

354

Advanced Turbo-Charging Research and Development  

SciTech Connect (OSTI)

The objective of this project is to conduct analysis, design, procurement and test of a high pressure ratio, wide flow range, and high EGR system with two stages of turbocharging. The system needs to meet the stringent 2010MY emissions regulations at 20% + better fuel economy than its nearest gasoline competitor while allowing equivalent vehicle launch characteristics and higher torque capability than its nearest gasoline competitor. The system will also need to meet light truck/ SUV life requirements, which will require validation or development of components traditionally used only in passenger car applications. The conceived system is termed 'seriessequential turbocharger' because the turbocharger system operates in series at appropriate times and also sequentially when required. This is accomplished using intelligent design and control of flow passages and valves. Components of the seriessequential system will also be applicable to parallel-sequential systems which are also expected to be in use for future light truck/SUV applications.

None

2008-02-27T23:59:59.000Z

355

Zero Emissions Coal Syngas Oxygen Turbo Machinery  

SciTech Connect (OSTI)

Siemens Energy, Inc. (formerly Siemens Westinghouse Power Corporation) worked with Clean Energy Systems and Florida Turbine Technologies to demonstrate the commercial feasibility of advanced turbines for oxy-fuel based power systems that discharge negligible CO{sub 2} into the atmosphere. The approach builds upon ultra supercritical steam turbine and advanced gas turbine technology with the goal of attaining plant efficiencies above 50% in the 2015 timeframe. Conceptual designs were developed for baseline, near term, and long term oxy-fuel turbine cycles, representing commercial introductions of increasingly advanced thermal conditions and increasing exposure to steam-CO{sub 2} mixtures. An economic analysis and market demand study was performed by Science Applications International Corp. (SAIC), and indicated that long-term oxy-fuel turbine cycles start to look attractive in 2025 when the CO{sub 2} tax is assumed to reach $40/ ton, and by 2030 it has a clear advantage over both IGCC with sequestration and pulverized coal with sequestration. A separate risk analysis of the oxy-fuel combustor, HP turbine, re-heater, and IP turbine of the long-term cycle identified and categorized risks and proposed mitigation measures. In 2007 the program began to focus on a potential oxy-fuel turbine power generation demonstration project in the 2012 -13 time period while still maintaining a link to the requirements of the long-term oxy-syngas cycle. The SGT-900 turbine was identified as the best fit for modification into an intermediate pressure turbine (IPT) for this application. The base metals, bond coats, thermal barrier coatings (TBCs), and rotor materials used in the SGT-900 were tested for their ability to operate in the steam- CO{sub 2} environment of the oxy-fuel OFT-900. Test results indicated that these same materials would operate satisfactorily, and the plan, is to use SGT-900materials for the OFT-900. Follow-on programs for corrosion testing and evaluation of crack growth rates in oxy-fuel environments have been proposed to build on these results and provide quantifiable assessments of the effects of oxy-fuel environments on the service lives of turbine components.

Dennis Horazak

2010-12-31T23:59:59.000Z

356

Proceedings of ASME TURBO EXPO 2002  

E-Print Network [OSTI]

turbulence characteristic of the flow exiting the combustor of advanced gas turbine engines. A number to increases in thermal load on high-pressure turbine blading due to high combustor exit temperatures in the combustor. The present research focuses on the effects of combustor exit 1 #12;freestream turbulence

Thole, Karen A.

357

CE Turbo Geothermal Facility | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBoston Areais3: Crystalline Rock - Basement JumpGeneral: CDOT Name:

358

Dynamics of dark energy  

E-Print Network [OSTI]

In this paper we review in detail a number of approaches that have been adopted to try and explain the remarkable observation of our accelerating Universe. In particular we discuss the arguments for and recent progress made towards understanding the nature of dark energy. We review the observational evidence for the current accelerated expansion of the universe and present a number of dark energy models in addition to the conventional cosmological constant, paying particular attention to scalar field models such as quintessence, K-essence, tachyon, phantom and dilatonic models. The importance of cosmological scaling solutions is emphasized when studying the dynamical system of scalar fields including coupled dark energy. We study the evolution of cosmological perturbations allowing us to confront them with the observation of the Cosmic Microwave Background and Large Scale Structure and demonstrate how it is possible in principle to reconstruct the equation of state of dark energy by also using Supernovae Ia observational data. We also discuss in detail the nature of tracking solutions in cosmology, particle physics and braneworld models of dark energy, the nature of possible future singularities, the effect of higher order curvature terms to avoid a Big Rip singularity, and approaches to modifying gravity which leads to a late-time accelerated expansion without recourse to a new form of dark energy.

Edmund J. Copeland; M. Sami; Shinji Tsujikawa

2006-06-16T23:59:59.000Z

359

Department of Electrical Engineering University of Roche&r  

E-Print Network [OSTI]

Department of Electrical Engineering University of Roche&r Rochester, New York 14627 Abstract dfm becoming necessary in the analysis of VLSI-based interconnect. I. Introduction Historically, interconnec IV. II. Dynamic and short-circuit power The dynamic power consumption can bc derival from analyzing

Friedman, Eby G.

360

The shape dynamics description of gravity  

E-Print Network [OSTI]

Classical gravity can be described as a relational dynamical system without ever appealing to spacetime or its geometry. This description is the so-called shape dynamics description of gravity. The existence of relational first principles from which the shape dynamics description of gravity can be derived is a motivation to consider shape dynamics (rather than GR) as the fundamental description of gravity. Adopting this point of view leads to the question: What is the role of spacetime in the shape dynamics description of gravity? This question contains many aspects: Compatibility of shape dynamics with the description of gravity in terms of spacetime geometry, the role of local Minkowski space, universality of spacetime geometry and the nature of quantum particles, which can no longer be assumed to be irreducible representations of the Poincare group. In this contribution I derive effective spacetime structures by considering how matter fluctuations evolve along with shape dynamics. This evolution reveals an "experienced spacetime geometry." This leads (in an idealized approximation) to local Minkowski space and causal relations. The small scale structure of the emergent geometric picture depends on the specific probes used to experience spacetime, which limits the applicability of effective spacetime to describe shape dynamics. I conclude with discussing the nature of quantum fluctuations (particles) in shape dynamics and how local Minkowski spacetime emerges from the evolution of quantum particles.

Tim Koslowski

2015-01-13T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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

Shape Dynamics in 2+1 Dimensions  

E-Print Network [OSTI]

Shape Dynamics is a formulation of General Relativity where refoliation invariance is traded for local spatial conformal invariance. In this paper we explicitly construct Shape Dynamics for a torus universe in 2+1 dimensions through a linking gauge theory that ensures dynamical equivalence with General Relativity. The Hamiltonian we obtain is formally a reduced phase space Hamiltonian. The construction of the Shape Dynamics Hamiltonian on higher genus surfaces is not explicitly possible, but we give an explicit expansion of the Shape Dynamics Hamiltonian for large CMC volume. The fact that all local constraints are linear in momenta allows us to quantize these explicitly, and the quantization problem for Shape Dynamics turns out to be equivalent to reduced phase space quantization. We consider the large CMC-volume asymptotics of conformal transformations of the wave function. We then use the similarity of Shape Dynamics on the 2-torus with the explicitly constructible strong gravity (BKL) Shape Dynamics Hamiltonian in higher dimensions to suggest a quantization strategy for Shape Dynamics.

Timothy Budd; Tim Koslowski

2011-07-07T23:59:59.000Z

362

The Pennsylvania State University The Graduate School  

E-Print Network [OSTI]

The Pennsylvania State University The Graduate School Department of Mechanical Engineering VEHICLE of Cost/Benefit Highway Design Tools..................................10 2.3 Common Vehicle Dynamics A Thesis in Mechanical Engineering by Bridget Catherine Hamblin © 2007 Bridget Catherine Hamblin Submitted

Brennan, Sean

363

The Pennsylvania State University The Graduate School  

E-Print Network [OSTI]

The Pennsylvania State University The Graduate School Department of Mechanical Engineering DYNAMICS AND DIMENSIONAL SIMILITUDE OF VEHICLE IMPACTS UPON SOIL- FIXED BOULDERS IN COHESIONLESS SOIL A Thesis in Mechanical Engineering by Mark Palmer Keske 2012 Mark Palmer Keske Submitted in Partial Fulfillment

Brennan, Sean

364

Wavefunction of the Universe on the Landscape  

E-Print Network [OSTI]

This talk reviews the proposal for dynamically selecting the most probable wavefunction of the universe propagating on the landscape of string theory, by means of quantum cosmology. Talk given at 'Albert Einstein Century International Conference'-UNESCO, Paris July 18-22 2005.

Laura Mersini-Houghton

2005-12-23T23:59:59.000Z

365

The Solar Interior Paul Bushby (Newcastle University)  

E-Print Network [OSTI]

The Solar Interior Paul Bushby (Newcastle University) STFC Introductory Course in Solar System. Solar rotation and large-scale flows 3. The solar cycle 4. Solar dynamo theory 5. Open questions Sunday, 5 September 2010 #12;1. Basic properties of the Sun Right: A recent image from the Solar Dynamics

Haase, Markus

366

NORTHWESTERN UNIVERSITY Autonomous Crack Comparometer Phase II  

E-Print Network [OSTI]

program between the two universities. Thanks are also given to the staff of the Infrastructure Technology Institute and in particular Dan Marron for all his advice and assistance during the project. I would like that daily and weekly weather related crack displacements are greater than those produced by dynamic events

367

A Dynamical IS-LM Model Allen Tang  

E-Print Network [OSTI]

A Dynamical IS-LM Model Allen Tang The University of North Carolina the specifications of a discrete dynamical IS-LM model and discuss how this model can of monetary policy, to an economy. The standard static IS-LM model arises

Marzuola, Jeremy

368

Robustness of chimera states in complex dynamical systems  

E-Print Network [OSTI]

Robustness of chimera states in complex dynamical systems Nan Yao1,2 , Zi-Gang Huang2,3 , Ying State University, Tempe, Arizona 85287, USA. The remarkable phenomenon of chimera state in systems distinct types of dynamical behaviors, in spite of identity of the oscillators. But how robust are chimera

Lai, Ying-Cheng

369

Fibre Based Modeling of Wood Dynamics and Fracture  

E-Print Network [OSTI]

Fibre Based Modeling of Wood Dynamics and Fracture by Sean Meiji Sutherland B.Sc., The University for the simulation of the dynamics and fracturing char- acteristics of wood, specifically its anisotropic behaviour bundles of fibres. Additionally, we describe the conditions under which fracture occurs in the material

Bridson, Robert

370

The Web Changes Everything: Understanding the Dynamics of Web Content  

E-Print Network [OSTI]

The Web Changes Everything: Understanding the Dynamics of Web Content Eytan Adar University, USA jelsas@cs.cmu.edu ABSTRACT The Web is a dynamic, ever changing collection of information. This paper explores changes in Web content by analyzing a crawl of 55,000 Web pages, selected to represent

Bergstrom, Carl T.

371

Achieving Energy Conservation in Poisson-Boltzmann Molecular Dynamics  

E-Print Network [OSTI]

1 Achieving Energy Conservation in Poisson-Boltzmann Molecular Dynamics: Accuracy and Precision University, Raleigh, NC 27695 Abstract Violation of energy conservation in Poisson-Boltzmann molecular is the observed violation of energy conservation in Poisson-Boltzmann molecular dynamics, in part due to its

Zhao, Hongkai

372

Fractal and Chaotic Dynamics in Nervous Systems Chris C. King  

E-Print Network [OSTI]

Fractal and Chaotic Dynamics in Nervous Systems Chris C. King Department of Mathematics & Statistics, University of Auckland. Abstract : This paper presents a review of fractal and chaotic dynamics distributed processing models and their relation to chaos and overviews reasons why chaotic and fractal

King, Chris

373

Dynamic Modelling for Control of Fuel Cells Federico Zenith  

E-Print Network [OSTI]

Dynamic Modelling for Control of Fuel Cells Federico Zenith Sigurd Skogestad Department of Chemical Engineering Norwegian University of Science and Technology ( ntnu) Trondheim Abstract Fuel-cell dynamics have been investigated with a variable-resistance board applied to a high temperature polymer fuel cell

Skogestad, Sigurd

374

Dynamics of Bose-Einstein Condensates Benjamin Schlein  

E-Print Network [OSTI]

Dynamics of Bose-Einstein Condensates Benjamin Schlein Department of Mathematics, University the dynamics of Bose-Einstein condensates, ob- tained in a series of joint papers [5, 6] with L. Erdos and H Schr¨odinger equation known as the Gross-Pitaevskii equation for the time evolution of the condensate

375

Dynamic RadiativeConvective Equilibria Using GCM Column Physics ISAAC M. HELD  

E-Print Network [OSTI]

Dynamic Radiative­Convective Equilibria Using GCM Column Physics ISAAC M. HELD NOAA and Oceanic Sciences, Department of Geosciences, Princeton University, Princeton, New Jersey BRUCE WYMAN NOAA author address: Dr. Isaac M. Held, NOAA/Geo- physical Fluid Dynamics Laboratory, Princeton University

376

6. Fluid mechanics: fluid statics; fluid dynamics  

E-Print Network [OSTI]

1/96 6. Fluid mechanics: fluid statics; fluid dynamics (internal flows, external flows) Ron and Flow Engineering | 20500 Turku | Finland 2/96 6.1 Fluid statics Ã?bo Akademi University | Thermal and Flow Engineering | 20500 Turku | Finland #12;3/96 Fluid statics, static pressure /1 Two types

Zevenhoven, Ron

377

DYNAMIC SCHEDULING M. C. H. Wright  

E-Print Network [OSTI]

for a time interval after which control is returned to the scheduling program to determine the best project who wants more time to evaluate their data can return control to the scheduling program, and come backDYNAMIC SCHEDULING M. C. H. Wright Radio Astronomy Laboratory, University of California, Berkeley

Militzer, Burkhard

378

Economic Viability of Dynamic Spectrum Management  

E-Print Network [OSTI]

and Economics Lab Department of Information Engineering The Chinese University of Hong Kong #12;#12;1 EconomicEconomic Viability of Dynamic Spectrum Management Jianwei Huang Network Communications efficiently. Successful im- plementation of DSM is not a pure engineering issue. It is also a complicated

Huang, Jianwei

379

Dynamic Behavior of Multiple Inversions Senior Thesis  

E-Print Network [OSTI]

Dynamic Behavior of Multiple Inversions Ilya Baran Senior Thesis Boston University Academy Under functions. To iterate a function means to compose it with itself multiple times. Unless stated otherwise, we a circle centered at O with radius r is a point A 0 on the ray \\Gamma! OA such that OA r = r OA 0 (see

Popovic, Jovan

380

Preliminary results of a dynamic system model for a closed-loop Brayton cycle coupled to a nuclear reactor.  

SciTech Connect (OSTI)

This paper describes preliminary results of a dynamic system model for a closed-loop Brayton-cycle that is coupled to a nuclear reactor. The current model assumes direct coupling between the reactor and the Brayton-cycle, however only minor additions are required to couple the Brayton-cycle through a heat exchanger to either a heat pipe reactor or a liquid metal cooled reactor. Few reactors have ever been coupled to closed Brayton-cycle systems. As such their behavior under dynamically varying loads, startup and shut down conditions, and requirements for safe and autonomous operation are largely unknown. Sandia National Laboratories has developed steady-state and dynamic models for closed-loop turbo-compressor systems (for space and terrestrial applications). These models are expected to provide a basic understanding of the dynamic behavior and stability of the coupled reactor and power generation loop. The model described in this paper is a lumped parameter model of the reactor, turbine, compressor, recuperator, radiator/waste-heat-rejection system and generator. More detailed models that remove the lumped parameter simplifications are also being developed but are not presented here. The initial results of the model indicate stable operation of the reactor-driven Brayton-cycle system and its ability to load-follow. However, the model also indicates some counter-intuitive behavior for the complete coupled system. This behavior will require the use of a reactor control system to select an appropriate reactor operating temperature that will optimize the performance of the complete spacecraft system. We expect this model and subsequent versions of it to provide crucial information in developing procedures for safe start up, shut down, safe-standby, and other autonomous operating modes. Ultimately, Sandia hopes to validate these models and to perform nuclear ground tests of reactor-driven closed Brayton-cycle systems in our nuclear research facilities.

Wright, Steven Alan

2003-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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

Participating Colleges & Universities (2008--2010)  

E-Print Network [OSTI]

Participating Colleges & Universities (2008--2010) Bowling Green State University Capital University Capital University (Center for Lifelong Learning) DeVry University Fairmount State University Franklin University Heidelberg University Indiana Wesleyan University Kent State University (College

382

University Libraries Technology Plan  

E-Print Network [OSTI]

Libraries Bowling Green State University #12;Table of Contents Introduction ..................................................................19 Page 2 of 19 Technology Plan, 2003-2005 University Libraries Bowling Green State University #12University Libraries Technology Plan 2003-2005 Page 1 of 19 Technology Plan, 2003-2005 University

Moore, Paul A.

383

DIMACS Center Rutgers University  

E-Print Network [OSTI]

, Johns Hopkins University Andrew Patrick, NRC Canada Norman Sadeh, Carnegie Mellon University Other Cranor, AT&T Mark Ackerman, University of Michigan Fabian Monrose, Johns Hopkins University Andrew Patrick, NRC Canada Norman Sadeh, Carnegie Mellon University Working Group: Usable Privacy and Security

384

Emerging universe from scale invariance  

SciTech Connect (OSTI)

We consider a scale invariant model which includes a R{sup 2} term in action and show that a stable ''emerging universe'' scenario is possible. The model belongs to the general class of theories, where an integration measure independent of the metric is introduced. To implement scale invariance (S.I.), a dilaton field is introduced. The integration of the equations of motion associated with the new measure gives rise to the spontaneous symmetry breaking (S.S.B) of S.I. After S.S.B. of S.I. in the model with the R{sup 2} term (and first order formalism applied), it is found that a non trivial potential for the dilaton is generated. The dynamics of the scalar field becomes non linear and these non linearities are instrumental in the stability of some of the emerging universe solutions, which exists for a parameter range of the theory.

Del Campo, Sergio; Herrera, Ramón [Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Casilla 4059, Valparaíso (Chile); Guendelman, Eduardo I. [Physics Department, Ben Gurion University of the Negev, Beer Sheva 84105 (Israel); Labraña, Pedro, E-mail: sdelcamp@ucv.cl, E-mail: guendel@bgu.ac.il, E-mail: ramon.herrera@ucv.cl, E-mail: plabrana@ubiobio.cl [Departamento de Física, Universidad del Bío Bío, Avenida Collao 1202, Casilla 5-C, Concepción (Chile)

2010-06-01T23:59:59.000Z

385

A Relativistic Dynamical Collapse Model  

E-Print Network [OSTI]

A model is discussed where all operators are constructed from a quantum scalar field whose energy spectrum takes on all real values. The Schr\\"odinger picture wave function depends upon space and time coordinates for each particle, as well as an inexorably increasing evolution parameter $s$ which labels a foliation of space-like hypersurfaces. The model is constructed to be manifestly Lorentz invariant in the interaction picture. Free particle states and interactions are discussed in this framework. Then, the formalism of the CSL (Continuous Spontaneous Localization) theory of dynamical collapse is applied. The collapse-generating operator is chosen to to be the particle number space-time density. Unlike previous relativistically invariant models, the vacuum state is not excited. The collapse dynamics depends upon two parameters, a parameter $\\Lambda$ which represents the collapse rate/volume and a scale factor $\\ell$. A common example of collapse dynamics, involving a clump of matter in a superposition of two locations, is analyzed. The collapse rate is shown to be identical to that of non-relativistic CSL when the GRW-CSL choice of $\\ell=a=10^{-5}$cm, is made, along with $\\Lambda=\\lambda/a^{3}$ (GRW-CSL choice $\\lambda=10^{-16}s^{-1}$). However, it is also shown that the change of mass of a nucleon over the age of the universe is then unacceptably large. The case where $\\ell$ is the size of the universe is then considered. It is shown that the collapse behavior is satisfactory and the change of mass over the age of the universe is acceptably small, when $\\Lambda= \\lambda/\\ell a^{2}$.

Philip Pearle

2014-12-21T23:59:59.000Z

386

Fluid Dynamics Research 33 (2003) 333356 Leapfrogging vortex rings: Hamiltonian structure, geometric  

E-Print Network [OSTI]

Fluid Dynamics Research 33 (2003) 333­356 Leapfrogging vortex rings: Hamiltonian structure that if the rings are modeled as coaxial circular ÿlaments, their dynamics and Hamil- tonian structure is derivable of Mechanical Engineering, New Mexico State University, Las Cruces, NM 88003, USA b Control and Dynamical

Shashikanth, Banavara N.

2003-01-01T23:59:59.000Z

387

Water Dynamics at Rough Interfaces  

E-Print Network [OSTI]

We use molecular dynamics computer simulations and nuclear magnetic resonance experiments to investigate the dynamics of water at interfaces of molecular roughness and low mobility. We find that, when approaching such interfaces, the structural relaxation of water, i.e., the $\\alpha$ process, slows down even when specific attractive interactions are absent. This prominent effect is accompanied by a smooth transition from Vogel to Arrhenius temperature dependence and by a growing importance of jump events. Consistently, at protein surfaces, deviations from Arrhenius behavior are weak when free water does not exist. Furthermore, in nanoporous silica, a dynamic crossover of liquid water occurs when a fraction of solid water forms near 225 K and, hence, the liquid dynamics changes from bulk-like to interface-dominated. At sufficiently low temperatures, water exhibits a quasi-universal $\\beta$ process, which is characterized by an activation energy of $E_a\\!=\\!0.5$ eV and involves anisotropic reorientation about large angles. As a consequence of its large amplitude, the faster $\\beta$ process destroys essentially all orientational correlation, rendering observation of a possible slower $\\alpha$ process difficult in standard experiments. Nevertheless, we find indications for the existence of structural relaxation down to a glass transition of interfacial water near 185 K. Hydrated proteins show a highly restricted backbone motion with an amplitude, which decreases upon cooling and vanishes at comparable temperatures, providing evidence for a high relevance of water rearrangements in the hydration shell for secondary protein relaxations.

Markus Rosenstihl; Kerstin Kämpf; Felix Klameth; Matthias Sattig; Michael Vogel

2014-07-21T23:59:59.000Z

388

Outline Phonon spectra of graphene Raman spectra of graphene Crystal lattice dynamics  

E-Print Network [OSTI]

Seminar Heng Wang University of Konstanz July 11, 2013 Heng Wang University of Konstanz () Crystal lattice Raman spectra of graphene What is Raman scattering Applications of Raman spectroscopy of graphene Heng (2013). Heng Wang University of Konstanz () Crystal lattice dynamics July 11, 2013 3 / 19 #12;Outline

389

Modelling of power plant dynamics and uncertainties for robust control synthesis *  

E-Print Network [OSTI]

-Kuo Weng, Asok Ray and Xiaowen Dai Mechanical Engineering Department, The Pennsylvania State University systems synthesis. In lieu of the actual plant data, mathematical models of computational fluid dynamics of Mechanical Engineering, The Pennsylvania State University, 137 Reber Building, University Park, PA 16802

Ray, Asok

390

Hydrogen Molecules inside Fullerene C70: Quantum Dynamics, Energetics, Maximum Occupancy, And Comparison with C60  

E-Print Network [OSTI]

Hydrogen Molecules inside Fullerene C70: Quantum Dynamics, Energetics, Maximum Occupancy of Chemistry, New York UniVersity, New York, New York 10003, Department of Chemistry, Brown UniVersity, ProVidence, Rhode Island 02912, and Department of Chemistry, Columbia UniVersity, New York, New York 10027 Received

Turro, Nicholas J.

391

Stanford University Conservation  

E-Print Network [OSTI]

Stanford University Hearing Conservation Program April 2006 #12;Stanford University HEARING CONSERVATION PROGRAM CONTENTS PAGE 1.0 INTRODUCTION #12;HEARING CONSERVATION PROGRAM 1.0 INTRODUCTION "It is the policy of Stanford University to maintain

392

Protein Dynamics and Biocatalysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Protein Dynamics and Biocatalysis Protein Dynamics and Biocatalysis 1998 Annual Report Grand Challenge Projects biocatalysis.gif A model of the Michaelis complex for the TEM-1...

393

Brunel Link 2011 | 1 The Brunel University Alumni AssociationThe Brunel University Alumni Association  

E-Print Network [OSTI]

)1895 267775 #12;The last 12 months have been some of the most packed and most fluid that I have experienced higher education. I also believe that the situation for universities remains fluid and dynamic, so, whose study on dampening the noise of dentist's drills will help patients overcome their fear

Martin, Ralph R.

394

Dynamic T{sub 2}-mapping during magnetic resonance guided high intensity focused ultrasound ablation of bone marrow  

SciTech Connect (OSTI)

Focal bone tumor treatments include amputation, limb-sparing surgical excision with bone reconstruction, and high-dose external-beam radiation therapy. Magnetic resonance guided high intensity focused ultrasound (MR-HIFU) is an effective non-invasive thermotherapy for palliative management of bone metastases pain. MR thermometry (MRT) measures the proton resonance frequency shift (PRFS) of water molecules and produces accurate (<1 Degree-Sign C) and dynamic (<5s) thermal maps in soft tissues. PRFS-MRT is ineffective in fatty tissues such as yellow bone marrow and, since accurate temperature measurements are required in the bone to ensure adequate thermal dose, MR-HIFU is not indicated for primary bone tumor treatments. Magnetic relaxation times are sensitive to lipid temperature and we hypothesize that bone marrow temperature can be determined accurately by measuring changes in T{sub 2}, since T{sub 2} increases linearly in fat during heating. T{sub 2}-mapping using dual echo times during a dynamic turbo spin-echo pulse sequence enabled rapid measurement of T{sub 2}. Calibration of T{sub 2}-based thermal maps involved heating the marrow in a bovine femur and simultaneously measuring T{sub 2} and temperature with a thermocouple. A positive T{sub 2} temperature dependence in bone marrow of 20 ms/ Degree-Sign C was observed. Dynamic T{sub 2}-mapping should enable accurate temperature monitoring during MR-HIFU treatment of bone marrow and shows promise for improving the safety and reducing the invasiveness of pediatric bone tumor treatments.

Waspe, Adam C.; Looi, Thomas; Mougenot, Charles; Amaral, Joao; Temple, Michael; Sivaloganathan, Siv; Drake, James M. [Centre for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto, ON, M5G 1X8 (Canada); Philips Healthcare Canada, Markham, ON, L6C 2S3 (Canada); Centre for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto, ON, M5G 1X8 (Canada); Department of Applied Mathematics, University of Waterloo, Waterloo, ON, N2L 3G1 (Canada); Centre for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto, ON, M5G 1X8 (Canada)

2012-11-28T23:59:59.000Z

395

Accelerated molecular dynamics methods  

SciTech Connect (OSTI)

The molecular dynamics method, although extremely powerful for materials simulations, is limited to times scales of roughly one microsecond or less. On longer time scales, dynamical evolution typically consists of infrequent events, which are usually activated processes. This course is focused on understanding infrequent-event dynamics, on methods for characterizing infrequent-event mechanisms and rate constants, and on methods for simulating long time scales in infrequent-event systems, emphasizing the recently developed accelerated molecular dynamics methods (hyperdynamics, parallel replica dynamics, and temperature accelerated dynamics). Some familiarity with basic statistical mechanics and molecular dynamics methods will be assumed.

Perez, Danny [Los Alamos National Laboratory

2011-01-04T23:59:59.000Z

396

ARIZONA STATE UNIVERSITY STETSON UNIVERSITY Phoenix, AZ Deland, FL  

E-Print Network [OSTI]

English Literature English BOWLING GREEN STATE UNIVERSITY Bowling Green, OH SYRACUSE UNIVERSITY IndustrialARIZONA STATE UNIVERSITY STETSON UNIVERSITY Phoenix, AZ Deland, FL Interdisciplinary Studies Leadership FLORIDA STATE UNIVERSITY Instructional Systems Design Tallahassee, FL Interdisciplinary Studies

Wu, Shin-Tson

397

Renewing University Base Funding  

E-Print Network [OSTI]

Renewing University Base Funding The Priority Issues 29 February 2012 e conor funding to universities as an immediate goal. It has already put in place increases worth 3.5%. 2 undergraduate or postgraduate, be funded at the same rate. #12;3 Charles Darwin University Flinders University

398

Graduate Programs Auburn University  

E-Print Network [OSTI]

Forestry Graduate Programs Auburn University Auburn University, Alabama 368495414 Programs://www.forestry.auburn.edu/graduate/ University of California, Berkeley Berkeley, California 947203114 Program: Forestry http://espm.berkeley.edu/gradprograms/grad_programs_mf.html Clemson University Clemson, South Carolina 29634 Program: Forest Resources http

399

Residential Learning University Housing  

E-Print Network [OSTI]

Residential Learning & University Housing Handbook 2008 - 2009 A Guide for Residential Living on the Campus of Rowan University #12;Welcome to Residential Learning & University Housing! The primary purpose of the Office of Residential Life & University Housing is to assist and support students in the pursuit

Rusu, Adrian

400

Columbia University Postdoctoral Officers  

E-Print Network [OSTI]

Columbia University Postdoctoral Officers Handbook 2013 #12;Greetings! I am excited to welcome you to the Columbia University community of scholars and investigators. The Columbia University Office of Postdoctoral Director, Office of Postdoctoral Affairs Columbia University in the city of new york office of postdoctoral

Grishok, Alla

Note: This page contains sample records for the topic "turbo dynamics university" 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

Columbia University Postdoctoral Officers  

E-Print Network [OSTI]

Columbia University Postdoctoral Officers Handbook 2011 #12;Greetings! I am excited to welcome you to the Columbia University community of scholars and investigators. The Columbia University Office of Postdoctoral of Postdoctoral Affairs Columbia university in the City of new york offiCe of postdoCtoral affairs 840 Interchurch

Grishok, Alla

402

Quantum Statistical Processes in the Early Universe  

E-Print Network [OSTI]

We show how the concept of quantum open system and the methods in non-equilibrium statistical mechanics can be usefully applied to studies of quantum statistical processes in the early universe. We first sketch how noise, fluctuation, dissipation and decoherence processes arise in a wide range of cosmological problems. We then focus on the origin and nature of noise in quantum fields and spacetime dynamics. We introduce the concept of geometrodynamic noise and suggest a statistical mechanical definition of gravitational entropy. We end with a brief discussion of the theoretical appropriateness to view the physical universe as an open system.

B. L. Hu

1993-02-22T23:59:59.000Z

403

NORTHERN KENTUCKY UNIVERSITY UNDERGRADUATE CATALOG  

E-Print Network [OSTI]

NORTHERN KENTUCKY UNIVERSITY UNDERGRADUATE CATALOG 2012-2013 #12;2 NORTHERN KENTUCKY UNIVERSITY of publica- tion. However, Northern Kentucky University reserves the right to change regulations, policies, or the Kentucky Council on Postsecondary Education. University Accreditation Northern Kentucky University

Boyce, Richard L.

404

Dynamical 3-Space: Emergent Gravity  

E-Print Network [OSTI]

The laws of gravitation devised by Newton, and by Hilbert and Einstein, have failed many experimental and observational tests, namely the bore hole g anomaly, flat rotation curves for spiral galaxies, supermassive black hole mass spectrum, uniformly expanding universe, cosmic filaments, laboratory G measurements, galactic EM bending, precocious galaxy formation,.. The response has been the introduction of the new epicycles: ``dark matter", ``dark energy", and others. To understand gravity we must restart with the experimental discoveries by Galileo, and following a heuristic argument we are led to a uniquely determined theory of a dynamical 3-space. That 3-space exists has been missed from the beginning of physics, although it was 1st directly detected by Michelson and Morley in 1887. Uniquely generalising the quantum theory to include this dynamical 3-space we deduce the response of quantum matter and show that it results in a new account of gravity, and explains the above anomalies and others. The dynamical theory for this 3-space involves G, which determines the dissipation rate of space by matter, and alpha, which experiments and observation reveal to be the fine structure constant. For the 1st time we have a comprehensive account of space and matter and their interaction - gravity.

Reginald T Cahill

2011-02-16T23:59:59.000Z

405

Accelerating universe emergent from the landscape  

E-Print Network [OSTI]

We propose that the existence of the string landscape suggests the universe can be in a quantum glass state, where an extremely large viscosity is generated, and long distance dynamics slows down. At the same time, the short distance dynamics is not altered due to the separation of time scales. This scenario can help to understand some controversies in cosmology, for example the natural existence of slow roll inflation and dark energy in the landscape, the apparent smallness of the cosmological constant. We see also that moduli stabilization is no longer necessary. We further identify the glass transition point, where the viscosity diverges, as the location of the cosmic horizon. We try to reconstruct the geometry of the accelerating universe from the structure of the landscape, and find that the metric should have an infinite jump when crossing the horizon. We predict that the static coordinate metric for dS space breaks down outside the horizon.

Jian-Huang She

2007-02-01T23:59:59.000Z

406

Proceedings of ASME TURBO EXPO 2003 2003 ASME TURBO EXPO 2003 Land, Sea and Air  

E-Print Network [OSTI]

computation currently underway Combustor (LES) Turbine (RANS)Compressor (RANS) interface interface Figure 1. FLOW COMPUTATIONS IN A GAS TURBINE: COMPRES- SOR ANS TURBINE [1] WITH RANS, COMBUSTOR WITH LES [2]. SO, the combustor, or the turbine. The optimization the entire system eludes currently CFD due to the high computa

Kim, Sangho

407

Quantum dynamics in the bosonic Josephson junction  

SciTech Connect (OSTI)

We employ a semiclassical picture to study dynamics in a bosonic Josephson junction with various initial conditions. Phase diffusion of coherent preparations in the Josephson regime is shown to depend on the initial relative phase between the two condensates. For initially incoherent condensates, we find a universal value for the buildup of coherence in the Josephson regime. In addition, we contrast two seemingly similar on-separatrix coherent preparations, finding striking differences in their convergence to classicality as the number of particles increases.

Chuchem, Maya; Cohen, Doron [Department of Physics, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva 84105 (Israel); Smith-Mannschott, Katrina [Department of Physics, Wesleyan University, Middletown, Connecticut 06459 (United States); MPI for Dynamics and Self-Organization, Bunsenstrasse 10, D-37073 Goettingen (Germany); Hiller, Moritz [Physikalisches Institut, Albert-Ludwigs-Universitaet, Hermann-Herder-Strasse 3, D-79104 Freiburg (Germany); Kottos, Tsampikos [Department of Physics, Wesleyan University, Middletown, Connecticut 06459 (United States); Vardi, Amichay [Department of Chemistry, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva 84105 (Israel); Institute for Theoretical Atomic, Molecular and Optical Physics, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States)

2010-11-15T23:59:59.000Z

408

University of Nebraska-Lincoln and University of Florida (Building...  

Open Energy Info (EERE)

Nebraska-Lincoln and University of Florida (Building Energy Efficient Homes for America) Jump to: navigation, search Name: University of Nebraska-Lincoln and University of Florida...

409

, UNIVERSITY Brigham Young University Geology Studies  

E-Print Network [OSTI]

, UNIVERSITY #12;Brigham Young University Geology Studies Volume 1 5 - 1968 Part 2 Studies for Students No. 1 Guide to the Geology of the Wasatch Mountain Front, Between Provo Canyon and Y Mountain, Northeast of Provo, Utah by J. Keith Rigby and Lehi F. Hintze #12;A publication of the Department of Geology

Seamons, Kent E.

410

Colorado State University Colorado State University  

E-Print Network [OSTI]

Colorado State University _______________ 1.1 Page 1 Colorado State University In 1870, the Territorial Council and House of Representatives of the Territory of Colorado created the Colorado that same year as Colorado's land-grant college under the Morrill Act of 1862. The Morrill Act provided

Stephens, Graeme L.

411

Colorado State University Colorado State University  

E-Print Network [OSTI]

Colorado State University Colorado State University In 1870, the Territorial Council and House of Representatives of the Territory of Colorado created the Colorado Agricultural College. When the Territory became. The College admitted its first students in 1879 and received designation that same year as Colorado's land

Collett Jr., Jeffrey L.

412

University Housing University of South Carolina  

E-Print Network [OSTI]

at the University of South Carolina. It is designed to be a sustainable living and learning environment and employs a more sustainable campus and society. These programming efforts are a collaboration among University Housing, Sustainable Carolina and other campus partners. Community Features · Attending events

Almor, Amit

413

Tariffs with Dynamic Supply Response  

E-Print Network [OSTI]

Giannini FDN iibrary TARIFFS WITH DYNAMIC SUPPLY RESWNSEpaper studies the optimal tariff in a dynamic framework. Thesellers, the optimal tariff is dynam- ically inconsistent;

Karp, Larry

1985-01-01T23:59:59.000Z

414

The Hamiltonian structure of a two-dimensional rigid circular cylinder interacting dynamically with N point vortices  

E-Print Network [OSTI]

The Hamiltonian structure of a two-dimensional rigid circular cylinder interacting dynamically bracket for the dynamics of N point vortices in an unbounded plane. We then use this Hamiltonian structure, New Mexico State University, Las Cruces, New Mexico 88003 Jerrold E. Marsdenb) Control and Dynamical

Shashikanth, Banavara N.

415

Essays in dynamic contracting  

E-Print Network [OSTI]

This thesis examines three models of dynamic contracting. The first model is a model of dynamic moral hazard with partially persistent states, and the second model considers relational contracts when the states are partially ...

Kwon, Suehyun

2012-01-01T23:59:59.000Z

416

Dynamics of structural priming   

E-Print Network [OSTI]

for understanding various aspects of syntactic priming. Cognitive processes are modelled as dynamical systems that can change their behaviour when they process information. We use these dynamical systems to investigate how each episode of language comprehension...

Malhotra, Gaurav

2009-01-01T23:59:59.000Z

417

Thermodynamics of an accelerated expanding universe  

E-Print Network [OSTI]

We investigate the laws of thermodynamics in an accelerating universe driven by dark energy with a time-dependent equation of state. In the case we consider that the physically relevant part of the Universe is that envelopped by the dynamical apparent horizon, we have shown that both the first law and second law of thermodynamics are satisfied. On the other hand, if the boundary of the Universe is considered to be the cosmological event horizon the thermodynamical description based on the definitions of boundary entropy and temperature breaks down. No parameter redefinition can rescue the thermodynamics laws from such a fate, rendering the cosmological event horizon unphysical from the point of view of the laws of thermodynamics.

Bin Wang; Yungui Gong; Elcio Abdalla

2005-11-10T23:59:59.000Z

418

Cosmic No Hair for Collapsing Universes  

E-Print Network [OSTI]

It is shown that all contracting, spatially homogeneous, orthogonal Bianchi cosmologies that are sourced by an ultra-stiff fluid with an arbitrary and, in general, varying equation of state asymptote to the spatially flat and isotropic universe in the neighbourhood of the big crunch singularity. This result is employed to investigate the asymptotic dynamics of a collapsing Bianchi type IX universe sourced by a scalar field rolling down a steep, negative exponential potential. A toroidally compactified version of M*-theory that leads to such a potential is discussed and it is shown that the isotropic attractor solution for a collapsing Bianchi type IX universe is supersymmetric when interpreted in an eleven-dimensional context.

James E. Lidsey

2006-04-11T23:59:59.000Z

419

Categorical Introduction to Dynamical Systems Symbolic Dynamical Systems  

E-Print Network [OSTI]

Categorical Introduction to Dynamical Systems Symbolic Dynamical Systems Symbolic Embedding Examples Results Embeddings in Symbolic Dynamical Systems Jonathan Jaquette Swarthmore College July 22, 2009 Jonathan Jaquette Embeddings in Symbolic Dynamical Systems #12;Categorical Introduction

Kahng, Byung-Jay

420

Wave excited cable mooring dynamics by modal analysis  

E-Print Network [OSTI]

klAVE EXCITED CABLE MOORING DYNAMICS BY MODAL ANALYSIS A Thesis RICHARD EARL DAVIS Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1977 Major... Subject: Civil Engineering WAVE EXCITED CABLE MOORING DYNAMICS BY MODAL ANALYSIS A Thesis by RICHARD EARL DAVIS Approved as to style and content by: (:( '. t(( (Co ? Chairman of Committee) 0~s (Co-Chairnin+of Committee) (Head of' Departme t...

Davis, Richard Earl

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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

Experiments concerning the dynamic filtration of drilling mud  

E-Print Network [OSTI]

EXPERIMENTS CONCERNING THE DYNAMIC FILTRATION OF DRILLING MUD A Thesis by JOHN GARY ELLER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May... 1989 Major Subject: Petroleum Engineering EXPERIMENTS CONCERNING THE DYNAMIC FILTRATION OF DRILLING MUD A Thesis by JOHN GARY ELLER Approved as to style and content by: Hans C. Ju am-Wold (Chair of Committee) tephen A. Holditch (Member) Ted...

Eller, John Gary

1989-01-01T23:59:59.000Z

422

Tiller growth dynamics of buffelgrass in response to defoliation  

E-Print Network [OSTI]

TILLER GROWTH DYNAMICS OF BUFFELGRASS IN RESPONSE TO DEFOLIATION A Thesis by OSCAR ALBERTO FERNANDEZ GUZMAN Submitted to the Graduate College of Texas A&M University in partial fullfillment of the requirement for the degree of MASTER... OF SCIENCE May 1987 Major Subject: Range Science TILLER GROWTH DYNAMICS OF BUFFELGRASS IN RESPONSE TO DEFOLIATION A Thesis by OSCAR ALBERTO FERNANDEZ GUZMAN Approved as to style and content by: Jerr . St hair n of Co ittee) W ne . Hamilton (Member...

Fernandez Guzman, Oscar Alberto

1987-01-01T23:59:59.000Z

423

Nonlinear viscoelastic characterization of thin films using dynamic mechanical analysis  

E-Print Network [OSTI]

NONLINEAR VISCOELASTIC CHARACTERIZATION OF THIN FILMS USING DYNAMIC MECHANICAL ANALYSIS A Thesis by DEBBIE FLOWERS PAYNE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE AUGUST 1993 Major Subject: Aerospace Engineering NONLINEAR VISCOELASTIC CHARACTERIZATION OF THIN FILMS USING DYNAMIC MECHANICAL ANALYSIS A Thesis by DEBBIE FLOWERS PAYNE Approved as to style and content by: Thomas W...

Payne, Debbie Flowers

1993-01-01T23:59:59.000Z

424

Dynamics of empty homogeneous isotropic three-dimensional spaces  

E-Print Network [OSTI]

It is shown that there are seven types of solutions described in the framework of general relativity theory (GRT), the dynamics of empty homogeneous isotropic three-dimensional spaces. Solution of the equations of GRT, which describes the dynamics of a homogeneous isotropic universe, in the limiting case of vanishingly small effect of matter on the metric properties of space must go to one of them.

A. V. Klimenko; V. A. Klimenko

2012-02-28T23:59:59.000Z

425

Dynamics of Carroll Particles  

E-Print Network [OSTI]

We investigate particles whose dynamics is invariant under the Carroll group. Although a single free such Carroll particle has no non-trivial dynamics (`the Carroll particle does not move') we show that there exists non-trivial dynamics for a set of interacting Carroll particles. Furthermore, we gauge the Carroll algebra and couple the Carroll particle to these gauge fields. It turns out that for such a coupled system even a single Carroll particle can have non-trivial dynamics.

Eric Bergshoeff; Joaquim Gomis; Giorgio Longhi

2014-05-31T23:59:59.000Z

426

University Services Pamela Wheelock  

E-Print Network [OSTI]

and Engineering Jerome Malmquist open position Business Services * Bruce Gritters September 2013 Public SafetyUniversity Services Pamela Wheelock Vice President MANAGEMENT SYSTEMS University Services Human Resources Linda Bjornberg Director open position CIO OPERATIONS Auxiliary Services Laurie Scheich

Amin, S. Massoud

427

Mathematics Department Millersville University  

E-Print Network [OSTI]

1 Mathematics Department Millersville University Master of Education in Mathematics (M.Ed.) #12;2 MASTER OF EDUCATION DEGREE IN MATHEMATICS Contents 1. Introduction ......................................................................................................2 a. Millersville University b. The Mathematics Department c. The Field of Mathematics Education Two

Hardy, Christopher R.

428

Environmental State University  

E-Print Network [OSTI]

Biology Water Science Nursery Management Plant Breeding Biofuel Feedstocks OUR DEPARTMENT The PLANT specialties, including plant breeding, genetic engineering, sustainable agriculture, ornamental production State University is the only land-grant, Hispanic serving university in the contiguous United States

429

Intramolecular and nonlinear dynamics  

SciTech Connect (OSTI)

Research in this program focuses on three interconnected areas. The first involves the study of intramolecular dynamics, particularly of highly excited systems. The second area involves the use of nonlinear dynamics as a tool for the study of molecular dynamics and complex kinetics. The third area is the study of the classical/quantum correspondence for highly excited systems, particularly systems exhibiting classical chaos.

Davis, M.J. [Argonne National Laboratory, IL (United States)

1993-12-01T23:59:59.000Z

430

Atmospheric Dynamics II Instructor  

E-Print Network [OSTI]

AT602 Atmospheric Dynamics II 2 credits Instructor: David W. J. Thompson davet: An Introduction to Dynamic Meteorology, 5th Edition, Academic Press (recommended) · Marshall, J., and Plumb, R. A., 2008: Atmosphere, Ocean, and Climate Dynamics: An Introductory Text, Academic Press. · Vallis, G. K

431

University Research Summaries  

Broader source: Energy.gov [DOE]

The Idaho National Laboratory published the U.S. Department of Energy's (DOE) Geothermal Technologies Office 2001 University Research Summaries. 

432

Mathematical Statistics Stockholm University  

E-Print Network [OSTI]

, University of Dar es Salaam, Postal address: Box 35062, Dar es Salaam, Tanzania. E-mail: shabanmbare

Britton, Tom

433

Strategic change and the coevolution of industry-university relationships : evidence from the forest products industry  

E-Print Network [OSTI]

In this thesis we present an analysis of the dynamics of industry-university relationships tracing the origin of the relationship and its changes over time as the firm's strategies evolve. We analyze the strategic trajectories ...

Pertuzé Salas, Julio Alberto

2014-01-01T23:59:59.000Z

434

MICHIGAN STATE UNIVERSITY INTRODUCTIONi.  

E-Print Network [OSTI]

#12;2 MICHIGAN STATE UNIVERSITY INTRODUCTIONi. Welcome to the Online Professional Master of Science), and the College of Veterinary Medicine (CVM) at Michigan State University (MSU). This booklet contains important, Program Director Online Master of Science in Food Safety Michigan State University 1129 Farm Lane, Rm B 51

435

University Buildings Landmark Buildings  

E-Print Network [OSTI]

KEY University Buildings Landmark Buildings The Lanyon Building Roads Footpath Cafe University Accommodation Queen's University Belfast Campus Map The Lanyon Building The Students' Union The David Keir Building School Offices A Biological Sciences B Chemistry and Chemical Engineering C Education D

Müller, Jens-Dominik

436

Universal Prediction Neri Merhav  

E-Print Network [OSTI]

Universal Prediction Neri Merhav y Meir Feder z July 23, 1998 Abstract This paper consists of an overview on universal prediction from an information-theoretic perspective. Special attention is given of the universal prediction problem are described with emphasis on the analogy and the di erences between results

Merhav, Neri

437

BRANDEIS UNIVERSITY FACULTY SENATE  

E-Print Network [OSTI]

Brandeis's story to the public. When questioned about the University's brand and identity, Ms. Miles answered that the logo is the University's brand identity. Brandeis is a research university with a long to the marketing of his image. Ms. Miles said that Brandeis had a real connection with Albert Einstein. She added

Fraden, Seth

438

Guillaume Bal Columbia University  

E-Print Network [OSTI]

Guillaume Bal Columbia University 500 W. 120th St, New York, NY 10027, U.S.A. (212) 854 4731 - 1993 Professional Experience · Professor, Columbia University, 2008-present. · Associate Professor, Columbia University, 2003-2008. · Visiting scholar, Institute for Pure and Applied Mathematics, UCLA campus

Bal, Guillaume

439

Michigan State University Alumni Association MICHIGAN STATE UNIVERSITY  

E-Print Network [OSTI]

Michigan State University Alumni Association Bylaws #12;2 MICHIGAN STATE UNIVERSITY ALUMNI of the organization shall be the Michigan State University Alumni Association (hereinafter, the "Association"). Section 2 Mission Statement The Michigan State University Alumni Association supports and enhances

440

Universality in holographic entropy production  

E-Print Network [OSTI]

We consider the time evolution of two entropy-like quantities, the holographic entanglement entropy and causal holographic information, in a model of holographic thermalization dual to the gravitational collapse of a thin planar shell. Unlike earlier calculations valid in different limits, we perform a full treatment of the dynamics of the system, varying both the shell's equation of state and initial position. In all cases considered, we find that between an early period related to the acceleration of the shell and a late epoch of saturation towards the thermal limit, the entanglement entropy exhibits universal linear growth in time in accordance with the prediction of Liu and Suh. As intermediate steps of our analysis, we explicitly construct a coordinate system continuous at the location of an infinitely thin shell and derive matching conditions for geodesics and extremal surfaces traversing this region.

Ville Keranen; Hiromichi Nishimura; Stefan Stricker; Olli Taanila; Aleksi Vuorinen

2014-05-27T23:59:59.000Z

Note: This page contains sample records for the topic "turbo dynamics university" 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

Complex Dynamics of Autonomous Communication Networks and the Intelligent Communication Paradigm  

E-Print Network [OSTI]

Dynamics of arbitrary communication system is analysed as unreduced interaction process. The applied generalised, universally nonperturbative method of effective potential reveals the phenomenon of dynamic multivaluedness of competing system configurations forced to permanently replace each other in a causally random order, which leads to universally defined dynamical chaos, complexity, fractality, self-organisation, and adaptability (physics/9806002, physics/0211071, physics/0405063). We demonstrate the origin of huge, exponentially high efficiency of the unreduced, complex network dynamics and specify the universal symmetry of complexity (physics/0404006) as the fundamental guiding principle for creation and control of such qualitatively new kind of networks and devices. The emerging intelligent communication paradigm and its practical realisation in the form of knowledge-based networks involve the features of true, unreduced intelligence and consciousness (physics/0409140) appearing in complex (multivalued) network dynamics and results.

Andrei P. Kirilyuk

2006-03-16T23:59:59.000Z

442

Bowling Green State University Coordinator of Library Instruction, University Libraries  

E-Print Network [OSTI]

Bowling Green State University Coordinator of Library Instruction, University Libraries The University Libraries (UL) at Bowling Green State University (BGSU) invites applications and nominations and the University of Toledo, is managed by the University Libraries. Established in 1910, BGSU has received

Moore, Paul A.

443

Dynamic failure prediction of cross-rolled beryllium sheets subjected to vibration loads  

E-Print Network [OSTI]

DYNAMIC FAILURE PREDICTION OF CROSS-ROLLED BERYLLIUM SHEETS SUBJECTED TO VIBRATION LOADS A Thesis OSCAR R. SERNA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1996 Major Subject; Civil Engineering DYNAMIC FAILURE PREDICTION OF CROSS-ROLLED BERYLLIUM SHEETS SUBJECTED TO VIBRATION LOADS A Thesis by OSCAR R. SERNA Submitted to Texas ARM University in partial fulfillment...

Serna, Oscar R.

1996-01-01T23:59:59.000Z

444

Dynamical friction in modified Newtonian dynamics  

E-Print Network [OSTI]

We have tested a previous analytical estimate of the dynamical friction timescale in Modified Newtonian Dynamics (MOND) with fully non-linear N-body simulations. The simulations confirm that the dynamical friction timescale is significantly shorter in MOND than in equivalent Newtonian systems, i.e. systems with the same phase-space distribution of baryons and additional dark matter. An apparent conflict between this result and the long timescales determined for bars to slow and mergers to be completed in previous N-body simulations of MOND systems is explained. The confirmation of the short dynamical-friction timescale in MOND underlines the challenge that the Fornax dwarf spheroidal poses to the viability of MOND.

C. Nipoti; L. Ciotti; J. Binney; P. Londrillo

2008-03-31T23:59:59.000Z

445

UNIVERSITY OF VIRGINIA ENGINEERING FOUNDATION  

E-Print Network [OSTI]

UNIVERSITY OF VIRGINIA ENGINEERING FOUNDATION I __________________________________________ pledge to contribute or make possible a gift to the University of Virginia Engineering Foundation for the University: ________________________________________________________ ________________________________________________________________ Please make check payable to the Engineering Foundation and return to the University of Virginia

Acton, Scott

446

Burgers Program for Fluid Dynamics/ University of Maryland, College Park  

E-Print Network [OSTI]

. Riaz) 10:40 - 11:00 a.m. Antonio Posa: "Advisor wall models for immersed boundary meth- ods" (E Session Chair: Kelley Stewart 3:05 - 3:25 p.m. Claire Verhulst: "POD analy- sis of kinetic energy entrainment in large wind farms." (C. Meneveau) 3:25 - 3:45 p.m. Manisha Ganeshan: "Role of convective

Gruner, Daniel S.

447

Fluid Dynamics Seminar Fluid Dynamics Research Centre  

E-Print Network [OSTI]

(Department of Engineering, University of Liverpool) 24 th May Cavitation, a Possible Cause of Damage to Three Gorge Turbines? Prof. Shengcai C. Li. (Professor of Hydraulic Machinery, based at the School

Davies, Christopher

448

Fluid Dynamics Seminar Fluid Dynamics Research Centre  

E-Print Network [OSTI]

(Department of Engineering, University of Liverpool) 24th May Cavitation, a Possible Cause of Damage to Three Gorge Turbines? Prof. Shengcai C. Li. (Professor of Hydraulic Machinery, based at the School

Davies, Christopher

449

University of Toronto Governing Council  

E-Print Network [OSTI]

fiVO AR BO R VELUT University of Toronto Governing Council W eb C opy UNIVERSITY FUNDS INVESTMENT://www.governingcouncil.utoronto.ca/ #12;UNIVERSITY FUNDS INVESTMENT POLICY June 21, 2007 Table of Contents 1. DESCRIPTION OF UNIVERSITY.....................................................................................................6 W eb C opy University of Toronto Governing Council--Web version 2 #12;UNIVERSITY FUNDS INVESTMENT

Boonstra, Rudy

450

A dynamic model for the Lagrangian stochastic dispersion coefficient  

SciTech Connect (OSTI)

A stochastic sub-grid model is often used to accurately represent particle dispersion in turbulent flows using large eddy simulations. Models of this type have a free parameter, the dispersion coefficient, which is not universal and is strongly grid-dependent. In the present paper, a dynamic model for the evaluation of the coefficient is proposed and validated in decaying homogeneous isotropic turbulence. The grid dependence of the static coefficient is investigated in a turbulent mixing layer and compared to the dynamic model. The dynamic model accurately predicts dispersion statistics and resolves the grid-dependence. Dispersion statistics of the dynamically calculated constant are more accurate than any static coefficient choice for a number of grid spacings. Furthermore, the dynamic model produces less numerical artefacts than a static model and exhibits smaller sensitivity in the results predicted for different particle relaxation times.

Pesmazoglou, I.; Navarro-Martinez, S., E-mail: s.navarro@imperial.ac.uk [Department of Mechanical Engineering, Imperial College, London SW7 2AZ (United Kingdom); Kempf, A. M. [Chair of Fluid Dynamics, Institute for Combustion and Gasdynamics and Center for Computational Sciences and Simulation, Universität Duisburg-Essen, Duisburg, 47048 (Germany)] [Chair of Fluid Dynamics, Institute for Combustion and Gasdynamics and Center for Computational Sciences and Simulation, Universität Duisburg-Essen, Duisburg, 47048 (Germany)

2013-12-15T23:59:59.000Z

451

Dynamic Testing of Gasifier Refractory  

SciTech Connect (OSTI)

The University of North Dakota (UND) Chemical Engineering Department in conjunction with the UND Energy & Environmental Research Center (EERC) have initiated a program to thoroughly examine the combined chemical (reaction and phase change) and physical (erosion) effects experienced by a variety of refractory materials during both normal operation and thermal cycling under slagging coal gasification conditions. The goal of this work is to devise a mechanism of refractory loss under these conditions. The controlled-atmospheric dynamic corrodent application furnace (CADCAF) is being utilized to simulate refractory/slag interactions under dynamic conditions that more realistically simulate the environment in a slagging coal gasifier than any of the static tests used previously by refractory manufacturers and researchers. Shakedown testing of the CADCAF has been completed. Samples of slag and refractory from the Tampa Electric Polk Power Station have been obtained for testing in the CADCAF. The slag has been dried and sieved to the size needed for our flowing slag corrosion tests. Screening tests are in currently in progress. Detailed analysis of corrosion rates from the first tests is in progress.

Michael D. Mann; Devdutt Shukla; Xi Hong; John P. Hurley

2004-09-27T23:59:59.000Z

452

Dynamic Testing of Gasifier Refractory  

SciTech Connect (OSTI)

The University of North Dakota (UND) Chemical Engineering Department in conjunction with the UND Energy & Environmental Research Center (EERC) have initiated a program to thoroughly examine the combined chemical (reaction and phase change) and physical (erosion) effects experienced by a variety of refractory materials during both normal operation and thermal cycling under slagging coal gasification conditions. The goal of this work is to devise a mechanism of refractory loss under these conditions. The controlled-atmospheric dynamic corrodent application furnace (CADCAF) is being utilized to simulate refractory/slag interactions under dynamic conditions that more realistically simulate the environment in a slagging coal gasifier than any of the static tests used previously by refractory manufacturers and researchers. Shakedown testing of the CADCAF is in progress. Samples of slag and refractory from the Tampa Electric Polk Power Station have been obtained for testing in the CADCAF. The slag has been dried and sieved to the size needed for our flowing slag corrosion tests. Testing is expected to begin in October.

Michael D. Mann; Devdutt Shukla; John P. Hurley

2003-09-27T23:59:59.000Z

453

University of Virginia, Dept. of Materials Science and Engineering Topic 8a -FIB  

E-Print Network [OSTI]

, high energy (30 keV) Ga+ ions are focused into spots as small as 10 nm to form pixel-by-pixel images. q;University of Virginia, Dept. of Materials Science and Engineering Dynamic Secondary Ion Mass Spectrometry (Dynamic SIMS) · In Secondary Ion Mass Spectrometry (SIMS), a solid specimen, placed in a vacuum

Moeck, Peter

454

39333939 ORNL/TM-2008/174 Local Dynamic Reactive Power for  

E-Print Network [OSTI]

39333939 ORNL/TM-2008/174 Local Dynamic Reactive Power for Correction of System Voltage Problems Local Dynamic Reactive Power for Correction of System Voltage Problems John D. Kueck* D. Tom Rizy Group at Oak Ridge National Laboratory Professor of Electrical Engineering at University of Tennessee

Pennycook, Steve

455

Dynamic Pricing For Efficient Workload Colocation VATCHE ISHAKIAN RAYMOND SWEHA AZER BESTAVROS JONATHAN APPAVOO  

E-Print Network [OSTI]

Dynamic Pricing For Efficient Workload Colocation VATCHE ISHAKIAN RAYMOND SWEHA AZER BESTAVROS, Boston University Boston, MA 02215, USA Abstract--Pricing models for virtualized (cloud) resources incurred by cloud providers are dynamic ­ they vary over time, depending on factors such as energy cost

456

Minimizing Building Electricity Costs in a Dynamic Power Market: Algorithms and Impact on Energy Conservation  

E-Print Network [OSTI]

Minimizing Building Electricity Costs in a Dynamic Power Market: Algorithms and Impact on Energy of Computing, The Hong Kong Polytechnic University, Hong Kong, P. R. China 2 Department of Electrical and the electricity bills nowa- days are leading to unprecedented costs. Electricity price is market-based and dynamic

Wang, Dan

457

Dynamics of interacting dark energy model in Einstein and Loop Quantum Cosmology  

E-Print Network [OSTI]

We investigate the background dynamics when dark energy is coupled to dark matter in the universe described by Einstein cosmology and Loop Quantum Cosmology. We introduce a new general form of dark sector coupling, which presents us a more complicated dynamical phase space. Differences in the phase space in obtaining the accelerated scaling attractor in Einstein cosmology and Loop Quantum Cosmology are disclosed.

Songbai Chen; Bin Wang; Jiliang Jing

2008-11-10T23:59:59.000Z

458

Louisiana State University Health Sciences Center New Orleans  

E-Print Network [OSTI]

, the uncertainties embedded in health care reform, and shrinking or stagnant federal research funding. Our Strategic center, the dynamic rebuilding of the health care system in the immediate geographic region, the reality strategically positioning SOM and LSU HealthCare Network for the completion of the new University Hospital

459

University of Massachusetts Mechanical and Industrial Engineering 607  

E-Print Network [OSTI]

University of Massachusetts Mechanical and Industrial Engineering 607 Fall 2013 Advanced Fluid Dynamics TTh 2:30-3:45PM Marston 220 This class will cover the fundamentals of fluid mechanics physical understanding of the fluid mechanics; the ability to use vector calculus to solve problems

Rothstein, Jonathan

460

Dr. Marc J. Metzger The University of Edinburgh  

E-Print Network [OSTI]

- 2010 Alterra, Wageningen UR, The Netherlands Guest researcher in rural land use dynamics · 2005 - 2007 Wageningen University, The Netherlands Environmental Systems Analysis group Lecturer in Environmental on page 4; Web of Science citation metrics: h-index of 12, >800 citations; 8 papers cited > 25 times

Note: This page contains sample records for the topic "turbo dynamics university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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461

Dr. Marc J. Metzger The University of Edinburgh  

E-Print Network [OSTI]

- 2010 Alterra, Wageningen UR, The Netherlands Guest researcher in rural land use dynamics · 2005 - 2007 Wageningen University, The Netherlands Environmental Systems Analysis group Lecturer in Environmental on page 4; Web of Science citation metrics: h-index of 13, >800 citations; 8 papers cited > 25 times

462

Non-iterative joint decoding and signal processing: universal coding approach for channels with memory  

E-Print Network [OSTI]

in an error free manner through the use of a capacity achieving code for a memoryless channel. Computational complexity of the proposed receiver structure is less than that of one iteration of the turbo receiver. We also provide the proof showing...

Nangare, Nitin Ashok

2006-08-16T23:59:59.000Z

463

University Advancement | University Communications and Marketing University Events & Programs  

E-Print Network [OSTI]

England Center, 15 Strafford Ave., Durham, New Hampshire, 03824 ph.: 603 -862-1461 fax: 603 The Pease Greeters Scholarship in memory of Charles Nichols recognizes a University of New Hampshire student for public service and an affiliation with the U.S. military. This scholarship is established with the intent

New Hampshire, University of

464

MACHINE LEARNING IN A DYNAMIC WORLD Panel Dmussion  

E-Print Network [OSTI]

MACHINE LEARNING IN A DYNAMIC WORLD Panel Dmussion Miecsyslaw M. Kohr Panel O&m and Editor. Michal~gi,George Mason University R.S.Sutton, GTE Laboratories Machine Learning was established of machine learning research was in Cybernetic Systems and Adaptive Control. Machine Learning has been

Antsaklis, Panos

465

Robot Arm Control Exploiting Natural Dynamics Matthew M. Williamson  

E-Print Network [OSTI]

Robot Arm Control Exploiting Natural Dynamics by Matthew M. Williamson M.Eng, University of Oxford by . . . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . Arthur C. Smith Chairman, Departmental Committee on Graduate Students #12;Robot Arm Control Exploiting for the degree of Doctor of Philosophy Abstract This thesis presents an approach to robot arm control exploiting

466

Dynamics of the O( ) + HCl reaction on the  

E-Print Network [OSTI]

Dynamics of the O( ) + HCl reaction on the electronic state: A new ab initio potential energy of Chemistry and Biochemistry, University of Texas, Austin, Texas 78712, USA A new potential energy surface energies calculated at the multireference configuration interaction level of theory with the Davidson

Ramachandran, Bala (Ramu)

467

Dynamic Energy-Aware Capacity Provisioning for Cloud Computing Environments  

E-Print Network [OSTI]

reduction in energy cost, while maintaining an acceptable average scheduling delay for individual tasksDynamic Energy-Aware Capacity Provisioning for Cloud Computing Environments Qi Zhang University by amortizing initial capital investment over large number of machines, they also incur tremendous energy cost

Boutaba, Raouf

468

Energy Policy and Economics 021 "Dynamics of the Oil Transition  

E-Print Network [OSTI]

Energy Policy and Economics 021 "Dynamics of the Oil Transition: Modeling Capacity, Costs of the oil transition: modeling capacity, costs, and emissions Adam R. Brandt and Alexander E. Farrell Energy, and Emissions" Adam R. Brandt and Alexander E. Farrell Energy and Resources Group, University of California

Kammen, Daniel M.

469

The Social Dynamics of Carbon Capture and Storage  

E-Print Network [OSTI]

The Social Dynamics of Carbon Capture and Storage Understanding CCS Representations, Governance studies. He works as a Research Associate at the Scottish Carbon Capture and Storage research centre at the Scottish Carbon Capture and Storage research centre at the University of Edinburgh. His research focuses

470

On Pipelining Dynamic Instruction Scheduling Logic Jared Stark  

E-Print Network [OSTI]

Engineering ¡ The University of Texas at Austin¢ mbrown,patt£ @ece.utexas.edu Abstract A machine's performance [3] warned that the dynamic instruction scheduling logic for current machines performs an atomic ¡ Microprocessor Research Labs Intel Corporation jared.w.stark@intel.com Dept. of Electrical and Computer

Zhang, Zhongfei "Mark"

471

Dynamic View Dependent Isosurface Extraction Yarden Livnat, Charles Hansen  

E-Print Network [OSTI]

-004 Scientific Computing and Imaging Institute University of Utah Salt Lake City, UT 84112 USA Enter date here1 Dynamic View Dependent Isosurface Extraction Yarden Livnat, Charles Hansen UUSCI-2003 Extraction Yarden Livnat Charles Hansen Scientific Computing and Imaging Institute School of Computing

Livnat, Yarden

472

Queueing-Theoretic Approaches for Dynamic Scheduling: Daria Terekhova  

E-Print Network [OSTI]

, 1999) Scheduling and control of flexible manufacturing sys- tems: a critical review (Basnet and MizeQueueing-Theoretic Approaches for Dynamic Scheduling: A Survey Daria Terekhova , Douglas G. DownbMaster University, Canada downd@mcmaster.ca Within the combinatorial scheduling community, there has been

Down, Doug

473

M1 internship account On update schedules and dynamics of  

E-Print Network [OSTI]

M1 internship account 2007-2008 On update schedules and dynamics of boolean networks Mathilde Noual Internship done at the university of Concepción under the direction of Julio Aracena hal-00688157,version1 network rely on several dierent parameters. During this internship, we have especially been looking

Paris-Sud XI, Université de

474

The evolutionary dynamics of self-incompatibility systems  

E-Print Network [OSTI]

The evolutionary dynamics of self-incompatibility systems Ed Newbigin1 and Marcy K. Uyenoyama2 1, Duke University, Durham, NC 27708-0338, USA Self-incompatible flowering plants reject pollen, pollen and pistil mating specificities segregate as a single locus, the S locus. In at least two self-incompat

Uyenoyama, Marcy K

475

Toward Standards for Dynamics in Electric Energy Systems  

E-Print Network [OSTI]

Toward Standards for Dynamics in Electric Energy Systems Future Grid Initiative White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12 Engineering Research Center The Power Systems Engineering Research Center (PSERC) is a multi-university Center

476

Decidability Results for Dynamic Installation of Compensation Handlers  

E-Print Network [OSTI]

that in a simple -like calculus with static compen- sations the termination of a process is decidable Zavattaro Focus Team, University of Bologna & INRIA, Italy Abstract. Dynamic compensation installation compensations, showing that process termination is decidable for parallel and replacing compensations while

Paris-Sud XI, Université de

477

DYNAMIC TRACKING PHASED ARRAY DATA LINKS K. D. Brown Dr. Chris Allen  

E-Print Network [OSTI]

DYNAMIC TRACKING PHASED ARRAY DATA LINKS K. D. Brown Dr. Chris Allen NNSA-KCP University of Kansas link developed by National Nuclear Safety Administration's Kansas City Plant (NNSA-KCP) and the University of Kansas (KU) in support of NNSA's Remote Sensing Laboratory (NNSA-RSL) located at the Nevada

Kansas, University of

478

Fluid dynamics topics in bloodstain pattern analysis: Comparative review and research opportunities  

E-Print Network [OSTI]

Review Fluid dynamics topics in bloodstain pattern analysis: Comparative review and research a Department of Mechanical Engineering, Iowa State University of Science and Technology, Ames, IA 50011, USA b Engineering & Applied Science, Dalhousie University, Halifax, NS B3H 4R2, Canada d Department of Mechanical

Attinger, Daniel

479

Get Online Support, Feel Better--Sentiment Analysis and Dynamics in an Online Cancer  

E-Print Network [OSTI]

Get Online Support, Feel Better--Sentiment Analysis and Dynamics in an Online Cancer Survivor and Technology The Pennsylvania State University, University Park, PA 16802 American Cancer Society, Inc. 250}@ist.psu.edu, {greta.greer, kenneth.portier}@cancer.org Abstract--Many users join online health communities (OHC

480

Smallmouth Bass Seasonal Dynamics in Northeastern South Dakota Glacial Lakes Thomas D. Bacula  

E-Print Network [OSTI]

Department of Game, Fish and Parks, and South Dakota State University. #12;iv ABSTRACT Smallmouth BassSmallmouth Bass Seasonal Dynamics in Northeastern South Dakota Glacial Lakes BY Thomas D. Bacula and Fisheries Science (Fisheries Option) South Dakota State University 2009 #12;11 Smallmouth Bass Seasonal

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


481

Nanoindentation Under Dynamic Conditions  

E-Print Network [OSTI]

............................................................................................ 98  6.3.1  Data Analysis ........................................................................................... 99  6.3.2  Dynamic Compliance ............................................................................. 103  6.3.3  Strain Rates...

Wheeler, Jeffrey M

2009-05-22T23:59:59.000Z

482

KYUSHU UNIVERSITY FINANCIAL REPORT  

E-Print Network [OSTI]

KYUSHU UNIVERSITY FINANCIAL REPORT 200992009 #12;1 Kyushu University FINANCIAL REPORT 2009 Kyushu University FINANCIAL REPORT 2009 2 1 3 4 2 5 6 7 9 11 13 14 15 16 3 17 18 19 20 21 22 4 23 24 25 26 5 27 28 6 29 30 FINANCIAL REPORT index2009 #12;1,300 1,200 1,100 1,000 900 800 700 600 500 400 300 200 100 0 1

Nakamura, Iku

483

Universal System Benefits Program  

Broader source: Energy.gov [DOE]

Montana established the Universal System Benefits Program (USBP) in 1997 as part of its restructuring legislation. The USBP supports cost-effective energy conservation, low-income customer...

484

CONTRACTING UNIVERSITY COUNSEL  

E-Print Network [OSTI]

CONTRACTING GUIDELINES HANDBOOK OFFICE OF UNIVERSITY COUNSEL The College of William & Mary #12................................................................................................................2 Contract Basics Office of Procurement....................................................................................................4 Contract Basics

Swaddle, John

485

Saugata Basu - Purdue University  

E-Print Network [OSTI]

Assistant Professor, Department of Mathematics, University of. Michigan ..... Robotics, K.Y. Goldberg, D. Halperin, J.-C. Latombe, R.H. Wilson, Eds., A.K.. Peters ...

2014-07-27T23:59:59.000Z

486

Purdue University Probability Seminar  

E-Print Network [OSTI]

Wroclaw University of Technology, Heat kernel estimates for unimodal Lévy .... we establish the same scaling limit in the critical regime for three families of ...

487

e conor.king@iru.edu.au t 0434 601 691 w iru.edu.au Charles Darwin University Flinders University Griffith University James Cook University La Trobe University Murdoch University The University of Newcastle  

E-Print Network [OSTI]

e conor.king@iru.edu.au t 0434 601 691 w iru.edu.au Charles Darwin University Flinders University Griffith University James Cook University La Trobe University Murdoch University The University of Newcastle Response to the Base Funding Review Recommendations 29 February 2012 #12;2 The purpose of base

488

Consistent Cosmology, Dynamic Relativity and Causal Quantum Mechanics as Unified Manifestations of the Symmetry of Complexity  

E-Print Network [OSTI]

The universal symmetry, or conservation, of complexity underlies any law or principle of system dynamics and describes the unceasing transformation of dynamic information into dynamic entropy as the unique way to conserve their sum, the total dynamic complexity. Here we describe the real world structure emergence and dynamics as manifestation of the universal symmetry of complexity of initially homogeneous interaction between two protofields. It provides the unified complex-dynamic, causally complete origin of physically real, 3D space, time, elementary particles, their properties (mass, charge, spin, etc.), quantum, relativistic, and classical behaviour, as well as fundamental interaction forces, including naturally quantized gravitation. The old and new cosmological problems (including "dark" mass and energy) are basically solved for this explicitly emerging, self-tuning world structure characterised by strictly positive (and large) energy-complexity. A general relation is obtained between the numbers of world dimensions and fundamental forces, excluding plausible existence of hidden dimensions. The unified, causally explained quantum, classical, and relativistic properties (and types of behaviour) are generalised to all higher levels of complex world dynamics. The real world structure, dynamics, and evolution are exactly reproduced by the probabilistic dynamical fractal, which is obtained as the truly complete general solution of a problem and the unique structure of the new mathematics of complexity. We outline particular, problem-solving applications of always exact, but irregularly structured symmetry of unreduced dynamic complexity to microworld dynamics, including particle physics, genuine quantum chaos, real nanobiotechnology, and reliable genomics.

Andrei P. Kirilyuk

2014-05-14T23:59:59.000Z

489

Seminar N 03301, Dynamically  

E-Print Network [OSTI]

Seminar Nº 03301, Dynamically Reconfigurable Architectures A Mead-&-Conway-like Break ·Ametek ·Applied Dynamics ·Astronautics ·BBN ·CDC ·Convex ·Cray Computer ·Cray Research ·Culler-Harris

Hartenstein, Reiner

490

Valley Road University Drive  

E-Print Network [OSTI]

WATER AND ENVIRONMENTAL SCIENCE BUILDING (WE) THE BREEZEWAY THE GROVE THE QUAD UNIVERSITY HALL (UH and Teaching (Trading Room) · Faculty of Health Sciences · Faculty of Management · Simulation Health Centre Centre · Science Labs · Subway · The Urban Market · Tim Hortons · University of Calgary Faculty of Social

Seldin, Jonathan P.

491

University of Operations Plan  

E-Print Network [OSTI]

Management Plan Office of Campus and Public Safety University of Delaware Critical Incident Management Plan Management Plan Office of Campus and Public Safety - 4 - University of Delaware Critical Incident Management and Public Safety - 5 - County of New Castle CD-30 911 Center/Communications CD-31 Department of Police CD-32

Firestone, Jeremy

492

Mathematics Department Millersville University  

E-Print Network [OSTI]

Mathematics Department Millersville University Bachelor's Degrees in Mathematics (B.S., B.A., B.S.E.) #12;Page 2 DEPARTMENT OF MATHEMATICS MILLERSVILLE UNIVERSITY 2011 STUDENT HANDBOOK FOR MATHEMATICS MAJORS AND MINORS Contents Page WELCOME TO THE MATHEMATICS DEPARTMENT

Hardy, Christopher R.

493

AALTO UNIVERSITY FOUNDATION CONSTITUTION  

E-Print Network [OSTI]

AALTO UNIVERSITY FOUNDATION CONSTITUTION Section 1. Name and domicile of the Foundation The Foundation shall be called Aalto-korkeakoulusäätiö (Swedish: Stiftelsen för Aaltohögskolan, English: Aalto University Foundation) and its domicile shall be the City of Helsinki. Section 2. Purpose of the Foundation

Kaski, Samuel

494

University of Wisconsin Foundation  

E-Print Network [OSTI]

University of Wisconsin Foundation Payroll Deduction Authorization "Philanthropy will mean Statement, UW Foundation Iwish to ensure the continuation of educational excellence at Wisconsin of the funds indicated on the reverse side of this card. Please send to: University of Wisconsin Foundation

Sheridan, Jennifer

495

University Buildings Landmark Buildings  

E-Print Network [OSTI]

KEY University Buildings Landmark Buildings The Lanyon Building Roads Footpath Cafe Grass Queen's University Belfast Campus Map The Lanyon Building The Students' Union The David Keir Building School Offices and Sonic Arts Q Nursing and Midwifery R Pharmacy S Planning, Architecture and Civil Engineering T Politics

Paxton, Anthony T.

496

University Buildings Landmark Buildings  

E-Print Network [OSTI]

KEY University Buildings Landmark Buildings The Lanyon Building Roads Footpath Cafe University Engineering N Medicine, Dentistry and Biomedical Sciences P Music and Sonic Arts Q Nursing and Midwifery R and Student Affairs 3 Administration Building 32 Ashby Building 27 Belfast City Hospital 28 Bernard Crossland

Paxton, Anthony T.

497

Utrecht University September 2011  

E-Print Network [OSTI]

Utrecht University September 2011 Faculty of Geosciences Welcome International Students #12;GEO.30 at the StudiePunt international@geo.uu.nl #12;Universiteit Utrecht Outline International Programme · General Orientation by Utrecht University (last Friday: 2 September 2011) · Social Orientation by ESN (last Saturday

Utrecht, Universiteit

498

COLUMBIA UNIVERSITY AN OVERVIEW  

E-Print Network [OSTI]

COLUMBIA UNIVERSITY AN OVERVIEW #12;COLUMBIA COLLEGE www.college.columbia.edu Columbia College UNIVERSITY SCHOOLS, #12;COLLEGES, AND AFFILIATES SCHOOL OF LAW www.law.columbia.edu Columbia Law School, philosophy, history, music, art, and science. THE FU FOUNDATION SCHOOL OF ENGINEERING AND APPLIED SCIENCE www.engineering.columbia

Yang, Junfeng

499

University of Hawaii ________________UNIVERSITY OF HAWAII  

E-Print Network [OSTI]

of Typical Laser Classes (from ANSI) 37 Appendix J ­ Laser Warning Signs (from ANSI) 38 Appendix K ­ Laser, the University has adopted the American National Standard for the Safe Use of Lasers, ANSI Z136.1, and ANSI Z136

Browder, Tom

500

University Life Strategic Plan UNIVERSITY LIFE  

E-Print Network [OSTI]

for the demands of work, social responsibility, and life in an ever-changing global society. Through a range well-being, post-graduation success Increased retention and timely degree completion Increased Engagement) #12;2 University Life is committed to preparing students for the demands of work, social