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Note: This page contains sample records for the topic "turbo aero tires" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

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...

2

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

3

CHAIR OF AERO ENGINES CHAIR OF AERO ENGINES  

E-Print Network [OSTI]

CHAIR OF AERO ENGINES #12;, CHAIR OF AERO ENGINES 02/03 HEAD OF CHAIR PROF. DR.-ING. DIETER PEITSCH of this approach is the propulsion and so, the chair of aero engines has been a nucleus for the development of ILR straight from its establishment. Today, the activities of the chair focus on air breathing engines

Berlin,Technische Universität

4

Tapping the tire pile  

SciTech Connect (OSTI)

What happens to car tires after they`ve exhausted their life on the road? Whether they are handed over to a tire dealer or tossed into the trash, many tires get a second life, reincarnated into products like doormats, park benches, and playground equipment. But the biggest single market for scrap tires is fuel; fuel that supplements the feedstock of paper mills, cement kilns, and even electric utility boilers. As well as offering a higher heating value than coal, tires can lower utilities` fuel costs and reduce polutant like nitrogen oxides and ash. But it`s the rare utility boiler that is amenable to burning tires successfully. 5 refs., 9 figs.

Lamarre, L.

1995-09-01T23:59:59.000Z

5

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

6

Scrap tire recycling  

SciTech Connect (OSTI)

As the automobile tire technology has grown and met the need for safer and more durable tires, stronger reinforcement and more chemically resistant rubber compounds have made recycling tires more difficult. In an effort to resolve this problem, techniques and equipment were developed to grind tires into small pieces, and new markets were sought to utilize the crumb rubber product streams from ground tires. Industrial combustion processes were modified to accept scrap tires as fuel. These efforts have been beneficial, steadily increasing the percentage of scrap tires recycled to about 10% in 1985, and reaching 72% in 1995. By the end of 1997, fully 100% of tires generated in the U.S. are expected to be recycled.

Lula, J.W.; Bohnert, G.W.

1997-03-01T23:59:59.000Z

7

Improving scrap tire processing  

SciTech Connect (OSTI)

The market for tire-derived materials is growing rapidly, with the largest market being tire-derived fuels. There is therefore a growing demand for higher quality products. This paper describes the processing and removal of steel from scrap tires.

Astafan, C.G. [Columbus McKinnon Corp., Sarasota, FL (United States)

1997-01-01T23:59:59.000Z

8

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

9

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

10

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

11

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

12

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

13

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

14

Latest in tire burning  

SciTech Connect (OSTI)

On September 26, Cris Lombardi and I presented a paper at the ARIPPA. The economic and environmental advantages available to CFB operators through the firing of tire-derived fuel (TDF) are discussed. The bottom line savings to the operation can be significant. It is believed that a regional scrap tire processing facility, capable of making properly-sized fuel, can be supported in Pennsylvania. An effort to develop such an operation is described. The technology for shredding and sizing TDF is well-proven. The proper equipment has been identified and reliable sources of scrap tires have been located. What is needed is to establish a certain minimum annual TDF usage so that fuel user permit modification activity can begin. Data are presented on the production and use of TDF.

Betzig, H.M.

1996-12-31T23:59:59.000Z

15

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

16

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.

17

Waste tire recycling by pyrolysis  

SciTech Connect (OSTI)

This project examines the City of New Orleans' waste tire problem. Louisiana State law, as of January 1, 1991, prohibits the knowing disposal of whole waste tires in landfills. Presently, the numerous waste tire stockpiles in New Orleans range in size from tens to hundreds of tires. New Orleans' waste tire problem will continue to increase until legal disposal facilities are made accessible and a waste tire tracking and regulatory system with enforcement provisions is in place. Tires purchased outside of the city of New Orleans may be discarded within the city's limits; therefore, as a practical matter this study analyzes the impact stemming from the entire New Orleans metropolitan area. Pyrolysis mass recovery (PMR), a tire reclamation process which produces gas, oil, carbon black and steel, is the primary focus of this report. The technical, legal and environmental aspects of various alternative technologies are examined. The feasibility of locating a hypothetical PMR operation within the city of New Orleans is analyzed based on the current economic, regulatory, and environmental climate in Louisiana. A thorough analysis of active, abandoned, and proposed Pyrolysis operations (both national and international) was conducted as part of this project. Siting a PMR plant in New Orleans at the present time is technically feasible and could solve the city's waste tire problem. Pending state legislation could improve the city's ability to guarantee a long term supply of waste tires to any large scale tire reclamation or recycling operation, but the local market for PMR end products is undefined.

Not Available

1992-10-01T23:59:59.000Z

18

Aero-Optics 1 Physics and Computation of Aero-Optics  

E-Print Network [OSTI]

Aero-Optics 1 Physics and Computation of Aero-Optics Meng Wang Department of Aerospace-fidelity simulation, opti- cal mitigation Abstract This article provides a critical review of aero-optics-induced optical distortions. Following a brief introduction of the fundamental theory and key concepts

Gordeyev, Stanislav

19

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

20

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

Note: This page contains sample records for the topic "turbo aero tires" 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

Waste tire recycling by pyrolysis  

SciTech Connect (OSTI)

This project examines the City of New Orleans` waste tire problem. Louisiana State law, as of January 1, 1991, prohibits the knowing disposal of whole waste tires in landfills. Presently, the numerous waste tire stockpiles in New Orleans range in size from tens to hundreds of tires. New Orleans` waste tire problem will continue to increase until legal disposal facilities are made accessible and a waste tire tracking and regulatory system with enforcement provisions is in place. Tires purchased outside of the city of New Orleans may be discarded within the city`s limits; therefore, as a practical matter this study analyzes the impact stemming from the entire New Orleans metropolitan area. Pyrolysis mass recovery (PMR), a tire reclamation process which produces gas, oil, carbon black and steel, is the primary focus of this report. The technical, legal and environmental aspects of various alternative technologies are examined. The feasibility of locating a hypothetical PMR operation within the city of New Orleans is analyzed based on the current economic, regulatory, and environmental climate in Louisiana. A thorough analysis of active, abandoned, and proposed Pyrolysis operations (both national and international) was conducted as part of this project. Siting a PMR plant in New Orleans at the present time is technically feasible and could solve the city`s waste tire problem. Pending state legislation could improve the city`s ability to guarantee a long term supply of waste tires to any large scale tire reclamation or recycling operation, but the local market for PMR end products is undefined.

Not Available

1992-10-01T23:59:59.000Z

22

Puncturing the scrap tire problem  

SciTech Connect (OSTI)

The recovery of scrap tires is making major headway in the 1990s. In 1994, an estimated 55 percent of all scrap tires generated were diverted from landfills, compared to 11 percent five years ago. Within three to five years, the Scrap Tire Management Council (STMC), an industry group, predicts that there will be markets for 100 percent of the estimated 250 million plus scrap tires generated in the U.S. annually. At that point, it should be possible to start making a serious dent in the estimated 800 to 850 million scrap tires stockpiled around the country. About 4.5 million scrap tires get transformed into ground rubber products. Despite that relatively small number, this category holds significant promise. It also is the area with perhaps the most entrepreneurial activity. The reason is clear when the value added from increasingly intensive processing of tires is examined. When scrap rubber is ground for use in asphalt, new tires or a host of other products - the value goes up tremendously. A quarter inch minus grind generally sells for 14 to 22 cents/lb., or $280 to $440/ton. With smallerpieces, the value continues to climb. An `80 mesh,` or rubber that passes through a screen with 80 holes/linear inch, sells for30 to 45 cents/ lb. ($600 to $900/ton), which is higher than prices for aluminum cans two years ago.

Steuteville, R.

1995-10-01T23:59:59.000Z

23

Mechanical properties of radial truck tires  

E-Print Network [OSTI]

determination of static properties of tire load vs. tire deflection and tire load vs. tire footprint area for radial and wide base radial truck tires is described and results are discussed. Determination of transmissibility for a conventional radial and a... (right) 12 13 15 Figure 7: Sidewall bulge measurement 16 Figure 8: Load vs. deflection; 385/65R22. 5 wide base tire tested at 90 psi inflation pressure 20 Figure 9: Load vs. deflection; 385/65R22. 5 wide base tire tested at 100 psi inflation...

Wasti, Mansoor-ul-Hassan

1992-01-01T23:59:59.000Z

24

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

25

Unconventional fuel: Tire derived fuel  

SciTech Connect (OSTI)

Material recovery of scrap tires for their fuel value has moved from a pioneering concept in the early 1980`s to a proven and continuous use in the United States` pulp and paper, utility, industrial, and cement industry. Pulp and paper`s use of tire derived fuel (TDF) is currently consuming tires at the rate of 35 million passenger tire equivalents (PTEs) per year. Twenty mills are known to be burning TDF on a continuous basis. The utility industry is currently consuming tires at the rate of 48 million PTEs per year. Thirteen utilities are known to be burning TDF on a continuous basis. The cement industry is currently consuming tires at the rate of 28 million PTEs per year. Twenty two cement plants are known to be burning TDF on a continuous basis. Other industrial boilers are currently consuming tires at the rate of 6.5 million PTEs per year. Four industrial boilers are known to be burning TDF on a continuous basis. In total, 59 facilities are currently burning over 117 million PTEs per year. Although 93% of these facilities were not engineered to burn TDF, it has become clear that TDF has found acceptance as a supplemental fuel when blending with conventional fuels in existing combustion devices designed for normal operating conditions. The issues of TDF as a supplemental fuel and its proper specifications are critical to the successful development of this fuel alternative. This paper will focus primarily on TDF`s use in a boiler type unit.

Hope, M.W. [Waste Recovery, Inc., Portland, OR (United States)

1995-09-01T23:59:59.000Z

26

Rubber friction and tire dynamics  

E-Print Network [OSTI]

We propose a simple rubber friction law, which can be used, e.g., in models of tire (and vehicle) dynamics. The friction law is tested by comparing numerical results to the full rubber friction theory (B.N.J. Persson, J. Phys.: Condensed Matter 18, 7789 (2006)). Good agreement is found between the two theories. We describe a two-dimensional (2D) tire model which combines the rubber friction model with a simple mass-spring description of the tire body. The tire model is very flexible and can be used to calculate accurate mu-slip (and the self-aligning torque) curves for braking and cornering or combined motion (e.g., braking during cornering). We present numerical results which illustrate the theory. Simulations of Anti-Blocking System (ABS) braking are performed using two simple control algorithms.

B. N. J. Persson

2010-07-16T23:59:59.000Z

27

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

28

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

29

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

30

E-Print Network 3.0 - aero projects capabilities Sample Search...  

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

Sample search results for: aero projects capabilities Page: << < 1 2 3 4 5 > >> 1 Aero-Optics 1 Physics and Computation of Aero-Optics Summary: Aero-Optics 1 Physics and...

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

Coal-tire co-liquefaction  

SciTech Connect (OSTI)

Co-liquefaction of ground coal and tire rubber was studied at 400{degrees}C both with and without catalyst. Two different tire samples were used. In the non-catalytic runs, the conversion of coal increased with the addition of tire and the increase was dependent on tire/coal ratio and hydrogen pressure. Using a ferric sulfide-based catalyst, the coal conversion increased with an increase in the catalyst loading. However, the increase was more pronounced at loadings of around 0.5 wt%. The addition of tire to coal in the catalytic runs was not particularly beneficial, especially, when the tire/coal ratio was above 1.

Sharma, R.K.; Dadyburjor, D.B.; Zondlo, J.W.; Liu, Zhenyu; Stiller, A.H. [West Virginia Univ., Morgantown, WV (United States)

1995-12-31T23:59:59.000Z

33

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

34

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.

35

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.

36

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.

37

Tire recovery: Baltimore firm seeks solution  

SciTech Connect (OSTI)

Several U.S. companies are recycling tires on a large scale. The tires usually are shredded and sold as a fuel supplement, as an additive to new rubber products, or as a component of road surfaces. Examples of successful tire recycling operations reveal the diverse processing and marketing strategies employed by six companies. The experiences of one hauler in Baltimore, MD, concerning scrap tire transport, shredding, and marketing are summarized.

Greenhut, S.

1985-12-01T23:59:59.000Z

38

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

39

WAVE TRANSMISSION AND MOORING-FORCE CHARACTERISTICS OF PIPE-TIRE FLOATING BREAKWATERS  

E-Print Network [OSTI]

Research Department, Goodyear Tire and Rubber Co. , Akron,to truck tires), arrangement Goodyear layer conveyor- Afor Goodyear or Wave-Maze floating tire breakwaters tires

Harms, Volker W.

2013-01-01T23:59:59.000Z

40

AeroWind Inc | 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: 160 East 300 SouthWaterBrasil Jump to:IowaResource EvaluationAeroFabrika JumpAeroWind

Note: This page contains sample records for the topic "turbo aero tires" 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

Broadening the markets for scrap tire rubber  

SciTech Connect (OSTI)

Only a couple years ago was the first time that the U.S. first recycled more scrap tires than it discarded. More experienced processors using improved technology and resourceful manufacturers continue to discover more uses of old tires. Soon, they`ll chip away at the 800 million tires stockpiled around the country, not just work to keep up with the waste tires generated each year. After years ago, asphalt roads and highways looked like the answer. This report profiles the utilization of scrap tires.

Hilts, M.E. [ed.

1996-01-01T23:59:59.000Z

42

Scrap tire derived fuel: Markets and issues  

SciTech Connect (OSTI)

More than 250 million scrap tires are generated annually in the United States and their proper management continues to be a solid waste management concern. Sound markets for scrap tires are growing and are consuming an ever increasing percentage of annual generation, with market capacity reaching more than 75% of annual generation in 1996. Of the three major markets - fuel, civil engineering applications, and ground rubber markets - the use of tires as a fuel is by far the largest market. The major fuel users include cement kilns, pulp and paper mills, electrical generation facilities, and some industrial facilities. Current issues that may impact the tire fuel market include continued public concern over the use of tires as fuels, the new EPA PM 2.5 standard, possible additional Clean Air emissions standards, access to adequate supplies of scrap tires, quality of processed tire derived fuel, and the possibility of creating a commodity market through the development of ASTM TDF standards.

Serumgard, J. [Scrap Tire Management Council, Washington, DC (United States)

1997-12-01T23:59:59.000Z

43

Autothermal pyrolysis of waste tires  

SciTech Connect (OSTI)

The main objective of this research was to study the operating parameters of autothermal pyrolysis of scrap tires in a laboratory-scale fluidized bed reactor with a 100-cm bed height (10 cm I.D.) and a 100-cm freeboard (25 cm I.D.). Scrap tires were pyrolyzed in a limited oxygen supply, so that the heat for pyrolysis of the scrap tires was provided by combustion of some portion of the scrap tires. The operating parameters evaluated included the effect on the pyrolysis oil products and their relative proportions of (1) the air factor (0.07-0.035); (2) the pyrolysis temperature (370-570{degree}C); and (3) the catalyst added (zeolite and calcium carbonate). The results show that: (1) the composition of the liquid hydrocarbon obtained is affected significantly by the air factor; (2) the higher operating temperature caused a higher yield of gasoline and diesel; (3) the yield of gasoline increased due to the catalyst zeolite added, and the yield of diesel increased due to the addition of the catalyst calcium carbonate; (4) the principal constituents of gasoline included dipentene and diprene. 30 refs., 10 figs., 5 tabs.

Wey, M.Y.; Liou, B.H. [National Chung-Hsing Univ., Taichung (Taiwan, Province of China); Wu, S.Y.; Zhang, C.H. [Feng-Chia Univ., Taichung (Taiwan, Province of China)

1995-11-01T23:59:59.000Z

44

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

45

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

46

Design of highway embankments using tire chips  

SciTech Connect (OSTI)

This paper describes research undertaken to develop design procedures for using shredded scrap tires as a lightweight fill material in highway construction. The benefits of using scrap tires are particularly enhanced if they can be used to replace virgin construction materials made from nonrenewable resources. This paper addresses the use of tire chips as a highway embankment material. Design parameters for embankments constructed using discarded shredded tires are presented based on laboratory model studies, numerical analyses, and field performance of test fills. The conclusions of this report support the use of tire chips as an environmentally acceptable lightweight fill in highway applications if properly confined. Recommendations for design procedures and construction specifications for the use of tire chips in highway fills are provided.

Bosscher, P.J.; Edil, T.B. [Univ. of Wisconsin, Madison, WI (United States). Dept. of Civil and Environmental Engineering; Kuraoka, S. [National Research Council Canada, Ottawa, Ontario (Canada). Inst. for Research in Construction

1997-04-01T23:59:59.000Z

47

Extracting inorganics from scrap tires  

SciTech Connect (OSTI)

Scrap tires contain several inorganic moieties in abundances >0.5% which are impregnated into their carbonaceous matrix. These inorganic species are known to produce acid rain, toxic aerosols, and boiler scale and could produce unwanted catalytic effects as well. It is our position that the potential of recycling scrap tires would be considerably enhanced if the inorganics in question - S, Ca, and Zn - were removed prior to attempts to upgrade the carbonaceous matrix. Using non-mechanical methods, we are attempting to cleave the adherence between the co-polymer matrix and to extract the inorganics. The efficiency of our methods is being measured by wavelength dispersive x-ray spectrometry and by other methods.

Cummings, R.; Wertz, D.L. [Univ. of Southern Mississippi, Hattiesburg, MS (United States)

1995-12-31T23:59:59.000Z

48

Evaluation of tire pressure, tire construction, axle configuration, and axle load on flexible pavement performance  

E-Print Network [OSTI]

EVALUATION OF TIRE PRESSURE, TIRE CONSTRUCTION, AXLE CONFIGURATION, AND AXLE LOAD ON FLEXIBLE PAVEMENT PERFORMANCE A Thesis by AHMAD NAJEEB JAMY 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 1991 Major Subject: Civil Engineering EVALUATION OF TIRE PRESSURE, TIRE CONSTRUCTION, AXLE CONFIGURATION, AND AXLE LOAD ON FLEXIBLE PAVEMENT PERFORMANCE. A Thesis by AHMAD NAJEEB JAMY Approved...

Jamy, Ahmad Najeeb

1991-01-01T23:59:59.000Z

49

Improving Vehicle Fuel Efficiency Through Tire Design, Materials...  

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

Vehicle Fuel Efficiency Through Tire Design, Materials, and Reduced Weight Improving Vehicle Fuel Efficiency Through Tire Design, Materials, and Reduced Weight 2012 DOE Hydrogen...

50

Goodyear Tire Plant Gains Traction on Energy Savings After Completing...  

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

Tire Plant saved approximately 93,000 MMBtu and 875,000 annually after increasing steam system energy efficiency in their Union City, Tennessee, plant. Goodyear Tire Plant...

51

Electric Vehicle Supply Equipment (EVSE) Test Report: AeroVironment  

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

pROGRAM Electric Vehicle Supply Equipment (EVSE) Test Report: AeroVironment EVSE Features LED status light EVSE Specifications Grid connection Hardwired Connector type J1772 Test...

52

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

53

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

54

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

55

E-Print Network 3.0 - aero-elasticity rotor aerodynamics Sample...  

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

Summary: HVDC 12;Rotor aero-elastics and structural dynamics 12;Aerodynamics for wind turbines Flow over... and components Rotor aero-elastics and structural dynamics Grid...

56

E-Print Network 3.0 - aeros manual series Sample Search Results  

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

under the name LibAero. The library offers steady-state, periodic, and unsteady... .2 Aerodynamic Data Classes . . . . . . . . . . . . . . . . . . . . . . . . 48 3.2.1 Aero......

57

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

58

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.

59

Scrap tire utilization via surface modification  

SciTech Connect (OSTI)

Air Products and Chemicals, Inc. is developing a novel approach to reusing scrap tire rubber, which will be described in this presentation. In addition to consuming scrap tires, this technology represents a new approach to material engineering. Furthermore, this method of rubber recycle is most efficient in terms of energy recovery. 4 figs.

Bauman, B.D. (Air Products and Chemicals, Inc., Allentown, PA (USA))

1990-01-01T23:59:59.000Z

60

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

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


61

Dynamics and Stability of Rolling Viscoelastic Tires  

SciTech Connect (OSTI)

Current steady state rolling tire calculations often do not include treads because treads destroy the rotational symmetry of the tire. We describe two methodologies to compute time periodic solutions of a two-dimensional viscoelastic tire with treads: solving a minimization problem and solving a system of equations. We also expand on work by Oden and Lin on free spinning rolling elastic tires in which they disovered a hierachy of N-peak steady state standing wave solutions. In addition to discovering a two-dimensional hierarchy of standing wave solutions that includes their N-peak hiearchy, we consider the eects of viscoelasticity on the standing wave solutions. Finally, a commonplace model of viscoelasticity used in our numerical experiments led to non-physical elastic energy growth for large tire speeds. We show that a viscoelastic model of Govindjee and Reese remedies the problem.

Potter, Trevor

2013-04-30T23:59:59.000Z

62

Kicking the Tires | Jefferson Lab  

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 MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFunInfraredJeffersonJonathan PershingrelocatesKaye D.KentheKicking the Tires

63

aero thermal test: Topics by E-print Network  

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

aero thermal test First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Titanium in Aero Engines CiteSeer...

64

AeroFabrika | 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: 160 East 300 SouthWaterBrasil Jump to:IowaResource EvaluationAeroFabrika Jump to:

65

AeroVironment | 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: 160 East 300 SouthWaterBrasil Jump to:IowaResource EvaluationAeroFabrika Jump

66

Tire Remanufacturing and Energy Savings Avid Boustani1  

E-Print Network [OSTI]

components that contribute to energy losses in a vehicle. The tread of a tire encompasses only 10 to 20 per (electric utilities), civil engineering purposes, etc. Another promising market for scrap tires is tireTire Remanufacturing and Energy Savings Avid Boustani1 , Sahni Sahni1 , Timothy Gutowski, Steven

Gutowski, Timothy

67

Scrap tire management in the mid south region  

SciTech Connect (OSTI)

The Scrap Tire Management Council (STMC) is a North American tire manufacturer-sponsored advocacy organization, created to identify and promote environmentally and economically sound markets for scrap tires. This presentation gives a national overview of the scrap tire situation, and focuses on the Tennessee and Mid-south region. National generation rates and markets for scrap tires are discussed, and markets for scrap tires are described. The major markets identified are fuel, rubber products, and civil engineering applications. Three technologies that may have an impact on scrap tire recycling are discussed: pyrolysis, gasification, and devulcanization.

Blumenthal, M. [Scrap Tire Management Council, Washington, DC (United States)

1996-08-01T23:59:59.000Z

68

Goodyear’s Self-Regulating Tires Save Fuel, Improve Safety, Win Awards  

Office of Energy Efficiency and Renewable Energy (EERE)

Tire manufacturer Goodyear has received multiple accolades for its self-regulating tire system, which monitors and automatically adjusts tire pressure.

69

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.

70

Scrap tire pyrolysis: Experiment and modelling  

SciTech Connect (OSTI)

Pyrolysis of waste, usually organic solids like tires, plastics or composite materials, is an alternative thermal waste treatment technology. Three main physical and chemical mechanisms - i.e.: chemical kinetics, internal heat transfer and external heat transfer - have to be considered when modelling the degradation of solid waste particles. Because of the lack of physical properties for wastes most of the models described in the literature use basic data obtained on the pyrolysis of coal, wood and biomass. In this work, the authors report basic information on the thermal degradation of tire samples at small scale: Thermogravimetric analyser (TGA) and differential scanning calorimeter (DSC), as well as direct and indirect measurements of thermal and physical properties (thermal conductivity of the tire and of the char, porosity, density, specific heat). Pyrolysis experiments on tire samples are performed in an imaging furnace. The experimental results are compared to theoretical values deduced from models that take into account physical property measurements.

Napoli, A.; Soudais, Y.; Lecomte, D. [Ecole des Mines d`Albi - Carmaux, Albi (France); Castillo, S. [Universite Paul Sabatier, Toulouse (France)

1997-12-01T23:59:59.000Z

71

AeroSys: Proposed Penalty (2010-CE-01/0201)  

Broader source: Energy.gov [DOE]

DOE alleged in a Notice of Proposed Civil Penalty that AeroSys, Inc. failed to certify residential central air conditioners and air conditioning heat pumps as compliant with the applicable energy conservation standards.

72

AeroSys: Noncompliance Determination (2010-SE-0302)  

Broader source: Energy.gov [DOE]

DOE issued a Notice of Noncompliance Determination to AeroSys, Inc. finding that basic models THHP-24T* and THDC-30T* do not comport with the energy conservation standards.

73

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.

74

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

75

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

76

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

77

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

78

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

79

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

80

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.

Note: This page contains sample records for the topic "turbo aero tires" 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

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

82

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

83

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.

84

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

85

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

86

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

87

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.

88

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

89

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

90

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.

91

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

92

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

93

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

94

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

95

Technical Report 2014-15 Lugre Tire Model for HMMWV  

E-Print Network [OSTI]

. An example of an all-terrain tire that can be used on HMMWV is depicted in figure 1. Figure 1. A Goodyear tire 37/12.50R17LT (http://www.goodyear.com/). Tires can be modelled in a number of ways in computerTechnical Report 2014-15 Lugre Tire Model for HMMWV Aki Mikkola October 21, 2014 #12;2 Abstract

Negrut, Dan

96

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

97

Passive tire pressure sensor and method  

DOE Patents [OSTI]

A surface acoustic wave device includes a micro-machined pressure transducer for monitoring tire pressure. The device is configured having a micro-machined cavity that is sealed with a flexible conductive membrane. When an external tire pressure equivalent to the cavity pressure is detected, the membrane makes contact with ridges on the backside of the surface acoustic wave device. The ridges are electrically connected to conductive fingers of the device. When the detected pressure is correct, selected fingers on the device will be grounded producing patterned acoustic reflections to an impulse RF signal. When the external tire pressure is less than the cavity reference pressure, a reduced reflected signal to the receiver results. The sensor may further be constructed so as to identify itself by a unique reflected identification pulse series.

Pfeifer, Kent Bryant (Los Lunas, NM); Williams, Robert Leslie (Albuquerque, NM); Waldschmidt, Robert Lee (Calgary, CA); Morgan, Catherine Hook (Ann Arbor, MI)

2007-09-04T23:59:59.000Z

98

Passive tire pressure sensor and method  

DOE Patents [OSTI]

A surface acoustic wave device includes a micro-machined pressure transducer for monitoring tire pressure. The device is configured having a micro-machined cavity that is sealed with a flexible conductive membrane. When an external tire pressure equivalent to the cavity pressure is detected, the membrane makes contact with ridges on the backside of the surface acoustic wave device. The ridges are electrically connected to conductive fingers of the device. When the detected pressure is correct, selected fingers on the device will be grounded producing patterned acoustic reflections to an impulse RF signal. When the external tire pressure is less than the cavity reference pressure, a reduced reflected signal to the receiver results. The sensor may further be constructed so as to identify itself by a unique reflected identification pulse series.

Pfeifer, Kent Bryant; Williams, Robert Leslie; Waldschmidt, Robert Lee; Morgan, Catherine Hook

2006-08-29T23:59:59.000Z

99

A statistical analysis of tire tread wear  

E-Print Network [OSTI]

. o ~ 4 14 Tire ~uxement Teat QQXPmemt a o e ~ ~ a ~t CencMt9ome. Xmeyect Rem Sohedmles, , ~ ~ ~ ~ ~ a a e e a o ~ ~ ~ e o W a ~ XS lS lv Tzeatmeat ef the Rata. . . ~. . . . , . . . XS X X X ~ ANAEeYSXS OP ~ MM ~ e ~ e e e ~ ~ e ~ e ~ ~ SS... o e' 'e 'o e ' e 'e o e e ~ e Beanbag ef the Test ef Bean Siffexeneea an4 Kate~inn 'o o o ~ e o ~ e e o. e ~ R~B658atl~o e ~ ~ ~ o e e e e ~ ~ e o 45 41 4S 1. Tire Wear in Relation to Period, Position, Tire & Treatment I, encl Tclsg8xntnre...

Sperberg, Ronald Leigh

1965-01-01T23:59:59.000Z

100

Tire Development for Effective Transportation and Utilization of Used Tires, CRADA 01-N044, Final Report  

SciTech Connect (OSTI)

Scrap tires represent a significant disposal and recycling challenge for the United States. Over 280 million tires are generated on an annual basis, and several states have large stockpiles or abandoned tire piles that are slated for remediation. While most states have programs to address the accumulation and generation of scrap tires, most of these states struggle with creating and sustaining recycling or beneficial end use markets. One of the major issues with market development has been the costs associated with transporting and processing the tires into material for recycling or disposal. According to a report by the Rubber Manufactures Association tire-derived fuel (TDF) represents the largest market for scrap tires, and approximately 115 million tires were consumed in 2001 as TDF (U.S. Scrap Tire Markets, 2001, December 2002, www.rma.org/scraptires). This market is supported primarily by cement kilns, followed by various industries including companies that operate utility and industrial boilers. However the use of TDF has not increased and the amount of TDF used by boiler operators has declined. The work completed through this cooperative research and development agreement (CRADA) has shown the potential of a mobile tire shredding unit to economically produce TDF and to provide an alterative low cost fuel to suitable coal-fired power systems. This novel system addresses the economic barriers by processing the tires at the retailer, thereby eliminating the costs associated with hauling whole tires. The equipment incorporated into the design allow for small 1-inch chunks of TDF to be produced in a timely fashion. The TDF can then be co-fired with coal in suitable combustion systems, such as a fluidized bed. Proper use of TDF has been shown to boost efficiency and reduce emissions from power generation systems, which is beneficial to coal utilization in existing power plants. Since the original scope of work outlined in the CRADA could not be completed because of lack of progress by the CRADA members, the agreement was not extended beyond February 2004. The work completed included the detailed design of the mobile unit, a general economic analysis of the operating the system, and outreach activities.

Susan M. Maley

2004-03-31T23:59:59.000Z

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


101

Tire Pressures and Sustainability: The Economic and Environmental Effects of Under-Inflated and Over-Inflated Tires  

E-Print Network [OSTI]

Tire Pressures and Sustainability: The Economic and Environmental Effects of Under-Inflated and Over-Inflated Tires at Williams College Sam Baldwin GEOS 206 Professor Dethier 18 May 2010 #12;Baldwin sustainable automobile practices. As gas prices were rising in 2006, for example, tire manufacturer

Aalberts, Daniel P.

102

DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner...  

Energy Savers [EERE]

Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models...

103

Department of Energy Announces Testing for AeroSys, Inc. Products...  

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

10 CFR 430.70, requires AeroSys to make test samples of certain AeroSys-manufactured air conditioners and heat pumps available to DOE at its own expense. The Department will...

104

DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner...  

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

Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and Heat Pump Models Shown to Violate Minimum Efficiency Standards DOE Orders AeroSys to Halt Distribution of...

105

Scrap tires: Black gold or fool`s gold?  

SciTech Connect (OSTI)

Three years ago, a US EPA report estimated there were between 2 and 3 billion tires stockpiled in the US. Currently, according to the Scrap Tire Management Council (STMC, Washington, DC), the number of stockpiled tires totals 850 million. However, this reduction is not due to federal or state legislation; simply, the number was overestimated. Whatever the actual number, scrap tire mounds have been large enough to prompt 34 states to developed scrap tire funding programs aimed at eliminating the stockpiling of the some 250 million tires generated per year, while gradually eliminating the tires already stockpiled. However, of the 34 states, only Illinois, Oregon, Florida, Wisconsin, and Minnesota, are aggressively tackling the problem. In each of these five cases, state officials claim, the only viable way to reduce large quantities of tires quickly is through energy reuse, and, like any other disposal method, it costs money. To compensate for the costs of elimination, states are developing funding for scrap tire reduction programs by placing fees on tire disposal, tire purchase, or vehicle title transfer and registration.

Glaz, S.

1995-10-01T23:59:59.000Z

106

Heat Transfer Research, 2010, Vol. 41, No. 6 Turbine Aero-Heat Transfer Studies  

E-Print Network [OSTI]

AU TH O R PR O O F Heat Transfer Research, 2010, Vol. 41, No. 6 Turbine Aero-Heat Transfer Studies in Rotating Research Facilities CENGIZ CAMCI Turbomachinery Aero-Heat Transfer Laboratory, Department The present paper deals with the experimental aero-heat transfer studies performed in rotating turbine

Camci, Cengiz

107

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.

108

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

109

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

110

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

111

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...

112

Ris-R-Report The DAN-AERO MW Experiments  

E-Print Network [OSTI]

ull scale MW size rotor s as well as o n airfoils for MW size turbine s in wind tun nels. Shear ew insight into a number of fu ndamental aerodynamic and aero-acoustic issues, important and turbulence inflow characteristics were measured on a Si emens 3.6 MW turbine with a five hole pitot tube

113

Fully Affiliated Members Aero/Astro Austin DiOrio  

E-Print Network [OSTI]

Fully Affiliated Members Aero/Astro Austin DiOrio Alpha Phi OmegaAPO Nicole Gagnier ARA Richard) Daniel Chavas East Campus Juliana Wu Eastgate Elliot Greenblatt Economics Dept. Kyle Greenberg Edgerton Center Chaithanya Bandi Parsons Benzhang Zhao Phi Beta Epsilon Daniel Ronde Phi Kappa Sigma (Skullhouse

Williams, Brian C.

114

Aero/Astro 50th Anniversary May 2008 Sustainable Aviation  

E-Print Network [OSTI]

Aero/Astro 50th Anniversary May 2008 Sustainable Aviation: Future Air Transportation of Altitude on Emissions Impact Source: Klug et al., 1996 #12;Sustainable Aviation -- The Problem #12;Sustainable Aviation -- The Problem 2005 #12;Sustainable Aviation -- The Problem With the expected three

Prinz, Friedrich B.

115

Fact #763: January 21, 2013 Eighty-four Percent of Scrapped Tires...  

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

Tire Uses, 2009 Market Tons (Thousands) Tire-derived Fuel 2,084.8 Ground Rubber 1,354.2 Civil Engineering 284.9 Reclamation Projects 130.0 Exported 102.1 Baled TiresMarketable...

116

Utilization of waste tires employing novel surface-modification technology  

SciTech Connect (OSTI)

Air Products and Chemicals, Inc. is developing unique technology for the recycle of scrap tires. The approach involves surface-modification of ground tire rubber particles to facilitate their incorporation into novel composites. This form of recycling represents the highest value-added and greatest energy conservation potential of all tire recycle technologies. Furthermore, it is environmentally innocuous. Research and development of this unique technology is partially funded through a cost-shared contract with the US Department of Energy. 4 figs.

Bauman, B.D. (Air Products and Chemicals, Inc., Allentown, PA (USA))

1989-01-01T23:59:59.000Z

117

Goodyear's Self-Regulating Tires Save Fuel, Improve Safety, Win...  

Energy Savers [EERE]

on the environment. Addthis Related Articles This graphic shows how Goodyear's new Air Maintenance Technology -- also called the self-regulating tire -- works. | Graphic...

118

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

119

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

120

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

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


121

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

122

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

123

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

124

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

125

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"

126

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

127

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

128

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

129

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.

130

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

131

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

132

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

133

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.

134

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.

135

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

136

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:

137

Final Scientific Report - "Improved Fuel Efficiency from Nanocomposite Tire Tread"  

SciTech Connect (OSTI)

Rolling resistance, a measure of the energy lost as a tire rotates while moving, is a significant source of power and fuel loss. Recently, low rolling resistant tires have been formulated by adding silica to tire tread. These "Green Tires" (so named from the environmental advantages of lower emissions and improved fuel economy) have seen some commercial success in Europe, where high fuel prices and performance drive tire selection. Unfortunately, the higher costs of the silica and a more complicated manufacturing process have prevented significant commercialization - and the resulting fuel savings - in the U.S. In this project, TDA Research, Inc. (TDA) prepared an inexpensive alternative to silica that leads to tire components with lower rolling resistance. These new tire composite materials were processed with traditional rubber processing equipment. We prepared specially designed nanoparticle additives, based on a high purity, inorganic mineral whose surface can be easily modified for compatibility with tire tread formulations. Our nanocomposites decreased energy losses to hysteresis, the loss of energy from the compression and relaxation of an elastic material, by nearly 20% compared to a blank SBR sample. We also demonstrated better performance than a leading silica product, with easier production of our final rubber nanocomposite.

Dr. Andrew Myers

2005-12-30T23:59:59.000Z

138

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

139

Scrap tire reuse through surface-modification technology  

SciTech Connect (OSTI)

Air Products and Chemicals, Inc. is developing a novel approach for reusing scrap tire rubber. The process involves the combination of scrap tire rubber particles with other materials to form higher value and higher performance composites. The process begins by grinding scrap tire to a fine particle size, and removing steel and fabric. The key to this approach is a proprietary surface-modification step which is critical for enhancing the compatibility with and bonding to other continuous phase matrix materials. Of all approaches for scrap tire rubber reuse, this approach offers the potential to recover (or save) the greatest amount of energy. Furthermore, this is the only approach which is clearly economically viable with current pricing and without a scrap tire tax. The process is environmentally innocuous, and capital requirements for large scale processing plants are projected to be modest. 7 figs.

Bauman, B.D.

1991-01-01T23:59:59.000Z

140

Shredded tires and rubber-sand as lightweight backfill  

SciTech Connect (OSTI)

The growing interest in utilizing waste materials in civil engineering applications has opened the possibility of constructing reinforced soil structures with unconventional backfills. Scrap tires are a high-profile waste material for which several uses have been studied, including the use of shredded tires as backfill. A triaxial testing program was conducted to investigate the stress-strain relationship and strength of tire chips and a mixture of sand and tire chips. The test results and additional information from the literature were used in the numerical modeling of wall backfills, both unreinforced and reinforced with geosynthetics. The numerical modeling results suggest tire shreds, particularly when mixed with sand, may be effectively used as a backfill.

Lee, J.H.; Salgado, R.; Lovell, C.W. [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering] [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering; Bernal, A. [GeoHidra, Caracas (Venezuela)] [GeoHidra, Caracas (Venezuela)

1999-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbo aero tires" 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

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.

142

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.

143

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

144

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

145

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

146

Discussion of and reply to ``Processing of scrap tires: Technology and market applications``  

SciTech Connect (OSTI)

Publication of this paper by Michael H. Blumenthal provides an excellent overview of scrap tire market opportunities, processing options, and some legislative background. The authors present some comments and areas that need addition coverage or clarification. These include the following: durability of new tires made from recycled rubber; cost data; tire derived fuel; landfilling of tires; composition of tires; processing equipment; and processing problems. This article also contains Mr. Blumenthal`s reply to the comments and questions.

Cosulich, J. [Los Angeles County Sanitation District, Whittier, CA (United States); Smisko, J. [County Sanitation Districts of Los Angeles County, Commerce, CA (United States); Niessen, W.R. [Camp Dresser and McKee, Inc., Cambridge, MA (United States); Blumenthal, M.H. [Scrap Tire Management Council, Washington, DC (United States)

1995-11-01T23:59:59.000Z

147

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

148

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...

149

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)...

150

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

151

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

152

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

153

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...

154

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

155

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

156

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

157

Emissions from burning tire-derived fuel (TDF): Comparison of batch combustion of tire chips and continuous combustion of tire crumb mixed with coal  

SciTech Connect (OSTI)

This laboratory study investigated the emissions of waste automobile tire-derived fuel (TDF). This fuel was burned in two different modes, either segmented in small pieces (tire chunks) or in pulverized form (tire crumb). Tire chunks were burned in fixed beds in batch mode in a horizontal furnace. Tire crumb was burned in a continous flow mode, dispersed in air, either alone or mixed with pulverized coal, in a verical furnace. The gas flow was laminar, the gas temperature was 1000{degrees}C in all cases, and the residence times of the combustion products in the furnaces were similar. Chunks of waste tires had dimensions in the range of 3-9 {mu}m, tire crumb was size-classified to be 180-212 {mu}m and the high volatile bituminous coal, used herein, was 63-75. The fuel mass loading in the furnaces was varied. The following emissions were monitored at the exit of the furnaces: CO, CO{sub 2}, NO{sub x} polynuclear aromatic hydrocarbon (PAH) and particulates. Results showed that combustion of TDF in fixed beds resulted in large yields (emissions per mass of fuel burned) of CO, soot and PAHs. Such yields increased with the size of the bed. CO, soot and PAHs yields from batch combustion of fixed beds of coal were lower by more than an order of magnitude than those from fixed beds of TDF. Continuous pulverized fuel combustion of TDF (tire crumb) resulted in dramatically lower yields of CO, soot and PAHs than those from batch combustion, especially when TDF was mixed with pulverized coal. To the contrary, switching the mode of combustion of coal (from fixed beds to pulverized fuel) did not result in large differences in the aforementioned emissions. CO{sub 2}, and, especially, NO{sub x} yields from batch combustion of TDF were lower than those from coal. Emissions of NO{sub x} were somewhat lower from batch combustion than from pulverized fuel combustion of TDF and coal.

Levendis, Y.A.; Atal, A. [Northeastern Univ., Boston, MA (United States); Carlson, J.B. [Army Natick R, Natick, MA (United States)

1998-04-01T23:59:59.000Z

158

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

159

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

160

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.

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161

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

162

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

163

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

164

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

165

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

166

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

167

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

168

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

169

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

170

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

171

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.

172

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

173

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

174

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

175

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

176

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

177

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

178

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.

179

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

180

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

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to obtain the most current and comprehensive results.


181

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.

182

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

183

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

184

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

185

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

186

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

187

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

188

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

189

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

190

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

191

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

192

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

193

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.

194

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

195

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.

196

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

197

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

198

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

199

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

200

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

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201

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

202

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

203

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

204

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

205

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

206

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

207

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.

208

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

209

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

210

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

211

Development of asphalts and pavements using recycled tire rubber. Phase 1: technical feasibility. Final report  

SciTech Connect (OSTI)

This report documents the technical progress made on the development of asphalts and pavements using recycled tire rubber.

Bullin, J.A.; Davison, R.R.; Glover, C.J. [and others

1998-01-01T23:59:59.000Z

212

UPWIND, Aerodynamics and aero-elasticity Rotor aerodynamics in atmospheric shear flow  

E-Print Network [OSTI]

UPWIND, Aerodynamics and aero-elasticity Rotor aerodynamics in atmospheric shear flow Niels N codes for wind turbines utilize aerodynamics based on BEM methods, see [1, 2]. For modern large scale

213

System theoretic framework for assuring safety and dependability of highly integrated aero engine control systems  

E-Print Network [OSTI]

The development of complex, safety-critical systems for aero-engine control is subject to the, often competing, demands for higher safety and reduced development cost. Although the commercial aerospace industry has a general ...

Atherton, Malvern J

2005-01-01T23:59:59.000Z

214

AeroSys: Noncompliance Determination (2010-CE-01/0201 and 2010-SE-0302)  

Broader source: Energy.gov [DOE]

DOE issued a Notice of Noncompliance Determination to AeroSys, Inc. finding that basic models THDC-18S, THDC-18T, THDC-24S, and THDC-24T do not comport with the energy conservation standards.

215

E-Print Network 3.0 - aero tkk tuuletunnel Sample Search Results  

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

MTM 743392 MTM 741515 MTM ECOLE CENTRALE DE... NANTES 743690* MTM 7421133* AERO 742630* FIS 741486* MTM 743037* MTM 732011 EDA 730856 EDA 767382 CIV Source: Politecnico di Milano,...

216

E-Print Network 3.0 - aero thermal parameters Sample Search Results  

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

29 ccsd-00008662,version1-13Sep2005 NMR measurements of hyperpolarized 3 Summary: of the aerogel struc- ture on atomic motion is thus described by the single parameter aero. The...

217

Tire-Wear Particles as a Source of Zinc to the Environment  

E-Print Network [OSTI]

(11, 15), brake linings (11, 15, 16), and rubber tires (9, 12, 17). Tire-wear particles have been.S. Geological Survey, MS 430, 12201 Sunrise Valley Drive, Reston, Virginia 20192 Tire-tread material has a zinc (Zn) content of about 1 wt %. The quantity of tread material lost to road surfaces by abrasion has

218

Dynamic Friction Models for Longitudinal Road/Tire Interaction: Theoretical Advances  

E-Print Network [OSTI]

Dynamic Friction Models for Longitudinal Road/Tire Interaction: Theoretical Advances C. Canudas we derive a new dynamic friction force model for the longitudinal road/tire interaction for wheeled-point friction problems, called the LuGre model [1]. By assuming a con- tact patch between the tire

Tsiotras, Panagiotis

219

LARGE SCALE DIRECT SHEAR TESTING WITH TIRE BALES By: Christopher J. LaRocque1  

E-Print Network [OSTI]

2 , Advisor Abstract: There are growing environmental interests in the utilization of recycled tire for newly constructed roads. Tire bales are manufactured by compressing approximately 100 waste auto, The University of Texas at Austin #12;Materials and Methods: Figure 2 shows a tire bale similar to those being

Zornberg, Jorge G.

220

Triaxial determination of shear strength of tire chips  

SciTech Connect (OSTI)

Triaxial compression tests following stress paths of constant {sigma}{sub 1} were conducted to determine the shear strength of five processed scrap tire products having different gradations and particle shapes. The interparticle frictional component was separated from the total shear strength according to the energy correction concept proposed by researchers. The experimental results show that all five tire chip products have ultimate internal friction angles of 45{degree} to over 60{degree}. The interparticle frictional component of the strength was fully mobilized and nearly reached a constant value after approximately 5% axial strain. The experimental results confirmed that the strength parameter obtained with constant {sigma}{sub 1} was more reasonable. This finding is supported by field observation in which the tire chips have an angle of repose ranging from 37{degree} to 43{degree} (loosely stock piled) and up to 85{degree} (compacted). The engineering applications of the experimental results are discussed.

Wu, W.Y.; Benda, C.C.; Cauley, R.F. [Vermont Agency of Transportation, Montpelier, VT (United States)

1997-05-01T23:59:59.000Z

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


221

Assessment of damage to geomembrane liners by shredded scrap tires  

SciTech Connect (OSTI)

This paper presents the results of a field and laboratory study performed to assess damage to the geomembrane liner caused by using shredded scrap tires as a leachate drainage layer material in landfills. The field testing was performed to assess the damage that occurred to the geomembrane liner during construction and included nine tests conducted with different combinations of tire chip size and thickness, both with a geotextile and without a geotextile overlying the geomembrane, and under different loading conditions. The laboratory testing was performed to characterize the shredded tires, particularly their size distribution, hydraulic conductivity, compressibility, and chemical resistance. The laboratory testing also included performing simulation testing to determine the extent of damage that occurs to the geomembrane liner by the shredded tires under long-term waste-loading conditions. the damage that occurred to the geomembrane liners in both field tests and simulated laboratory tests was determined by visual observations as well as by conducting multi-axial tension tests, wide strip tension tests, and water vapor transmission tests on the exhumed geomembrane samples. Based on these results, a 0.46-m thick layer of secondary shred tire chips, with an average size of 7.6 cm, placed over a 543-g/m{sup 2} geotextile installed over a geomembrane liner using low-ground-pressure (<58 kPa) equipment was determined to provide adequate protection in the geomembrane liner during construction. The degree of protection offered under long-term loading conditions depends on the normal stress and the random orientation of the shredded tire chips at the geomembrane interface.

Reddy, K.R.; Saichek, R.E. [Univ. of Illinois, Chicago, IL (United States). Dept. of Civil and Materials Engineering

1998-12-01T23:59:59.000Z

222

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

223

Recycling tires. (Latest citations from Pollution Abstracts). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning the technology and economic advantages of scrap tire recycling. The application of crumb rubber in the production of asphalt paving, floor-coverings, high performance composites, and other products is described. The production of fuels from scrap tires is also discussed. Legislation which promotes recycling, and the roles of government and the private sector in developing new markets and expanding existing markets are included.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1996-12-01T23:59:59.000Z

224

Recycling tires. (Latest citations from Pollution Abstracts). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning the technology and economic advantages of scrap tire recycling. The application of crumb rubber in the production of asphalt paving, floor-coverings, high performance composites, and other products is described. The production of fuels from scrap tires is also discussed. Legislation which promotes recycling, and the roles of government and the private sector in developing new markets and expanding existing markets are included.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1995-11-01T23:59:59.000Z

225

Scrap tire management in the New York/Mid Atlantic region  

SciTech Connect (OSTI)

The Scrap Tire Management Council (STMC) is a North American tire manufactures sponsored, advocacy organization, created to identify and promote environmentally and economically sound markets for scrap tires. The primary goal of the Council is to assist in the creation of demand for 100 percent of the annually generated scrap tires in the United States. Based on current market demand and projected market growth, we envision the primary goal to be met by the turn of the century. A national overview of the scrap tire situation is presented, and then the situations in New York/Mid Atlantic region are discussed.

Blumenthal, M. [Scrap Tire Management Council, Washington, DC (United States)

1995-05-01T23:59:59.000Z

226

Geotechnical investigation of the potential use of shredded scrap tires in soil stabilization. Final report  

SciTech Connect (OSTI)

Silt-tire and clay-tire mixtures, containing 0% to 100% shredded tire material by weight, with tire chips ranging in size from 7mm--13mm, 13mm--25mm, and 25mm--38mm, were tested for a series of engineering properties including compaction characteristics, permeability, unconfined compressive strength, friction angle, cohesion, and compression index. In addition, the leachate samples from shredded tire material, soil-tire mixtures, and a test embankment, containing 70% clay and 30% shredded tire material by weight, were analyzed for chemical composition. The results show that density and unconfined compressive strength decrease, and permeability increases, with increasing shredded tire content for both soil types and all three tire sizes used in the study. In general, the addition of shredded tire material improves the friction angle for both silt and clay by a few degrees but also increases their compression index values. The results of leachate analyses show that concentrations of trace elements from soil-tire mixtures are less than the maximum allowed contaminant levels specified in United States Environmental Protection Agency`s regulations.

Shakoor, A.; Chu, C.J.

1998-11-01T23:59:59.000Z

227

Use of shredded tires in the subbase layer of asphalt pavements  

SciTech Connect (OSTI)

Research was conducted on the use of shredded scrap tires for use in the subbase layer of asphalt pavements. Mixtures of shredded scrap tires with virgin soil provide a means of recycling unwanted tires and conserving a finite supply of virgin soil. The mechanistic procedure for the design of pavement systems requires resilient modulus values. Plastic and elastic strains were measured using external LVDT`s and internal proximity sensors. Resilient modulus measurements were conducted on cohesionless soils mixed with various amounts of shredded tire chips. The performance f the shredded tire mixture is compared to that of the naturally occurring virgin soil used in subbase applications in New Jersey. A number of experimental issues are discussed such as: method of compaction, optimum ratio of shredded tire chips to soil, optimum size and gradation of shredded tire chips, and strength testing using California Bearing Ratio.

Papp, W.J. Jr.; Maher, M.H. [Rutgers Univ., Piscataway, NJ (United States). Dept. of Civil and Environmental Engineering; Baker, R.F. [New Jersey Dept. of Transportation, Trenton, NJ (United States)

1997-12-31T23:59:59.000Z

228

The use of scrap tires in rotary cement kilns  

SciTech Connect (OSTI)

The use of scrap tires as a supplemental fuel in the United States Portland cement industry has increased significantly in the past six years. In 1990, there were two kilns using tire-derived fuel (TDF), today 30 kilns use TDF. The outlook for continued and expanded use of TDF in the U.S. cement industry should be considered favorable, with 15 kilns conducting tests to determine TDF`s applicability or in the permitting process. The Council`s estimates are that by the end of 1996, the cement industry could be consuming some 75-100 million of the 253 million annually generated scrap tires in the United States. This level of TDF usage will make the cement industry the largest market segments for scrap tires in the United States. While the long-term outlook is at present positive, there are a series of factors that have, and will likely continue to adversely impact the near-term usage of TDF. These issues, as well as the factors that are likely to positively impact the cement kiln TDF market are the subject of this presentation.

Blumenthal, M. [Scrap Tire Management Council, Washington, DC (United States)

1996-12-31T23:59:59.000Z

229

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

230

Producing ground scrap tire rubber: A comparison between ambient and cryogenic technologies  

SciTech Connect (OSTI)

Prior to 1985, few, if any scrap tires were processed. The Minnesota program changed all that. The equipment first introduced to process scrap tires consisted of redesigned wood or metal shredders. The performance of these systems left much to be desired. In the past 10 years, many companies and equipment systems, designed especially for scrap tires, have come into existence. Until recently, scrap tires were typically processed by ambient systems. These systems consist of a mechanical process, which cuts and or grinds whole tire rubber into the desired sized particle at room temperatures. Historically, producing ground rubber, like all other rubber processing, was done by an ambient processes system. Within the last several years, cryogenic processing of scrap tires has been introduced for the preparation of ground rubber. In the cryogenic process, rubber is introduced into a bath of liquid nitrogen, instantly freezing the rubber. Once embrittled, the rubber is struck with an impact devise, effectively shattering the rubber.

Blumenthal, M.H. [Scrap Tire Management Council, Washington, DC (United States)

1996-09-01T23:59:59.000Z

231

Numerical model for the vacuum pyrolysis of scrap tires in batch reactors  

SciTech Connect (OSTI)

A quantitative model for scrap tire pyrolysis in a batch scale reactor developed comprises the following basic phenomena: conduction inside tire particles; conduction, convection, and radiation between the feedstock particles or between the fluids and the particles; tire pyrolysis reaction; exothermicity and endothermicity caused by tire decomposition and volatilization; and the variation of the composition and the thermal properties of tire particles. This model was used to predict the transient temperature and density distributions in the bed of particles, the volatile product evolution rate, the mass change, the energy consumption during the pyrolysis process, and the pressure history in a tire pyrolysis reactor with a load of 1 kg. The model predictions agree well with independent experimental data.

Yang, J.; Tanguy, P.A.; Roy, C. [Univ. Laval, Quebec, PQ (Canada). Dept. de Genie Chimique] [Univ. Laval, Quebec, PQ (Canada). Dept. de Genie Chimique

1995-06-01T23:59:59.000Z

232

Scrap tire recycling: Promising high value applications. Final report  

SciTech Connect (OSTI)

Surface modification of scrap tire rubber (rubber particles treated with chlorine gas) show promise for ameliorating the scrap tire problem (the treated rubber can be used as a component in high- performance, expensive polymer systems). The process has been proven in Phase I. Phase II covers market/applications, process development (Forberg-design mixer reactor was chosen), plant design, capital cost estimate, economics environmental/safety/health, and energy impact. Almost of the small amount of chlorine is consumed. The capital costs for a rubber particle treatment facility are attractive, being at least two orders of magnitude less than that of facilities for making new polymer materials. Large volume markets using treated rubber are needed. The amount of scrap rubber available is small compared to the polymers available for replacement. 7 tabs, 16 figs.

Bauman, B.D.; Leskovyansky, P.J.; Drela, H.

1993-11-01T23:59:59.000Z

233

Characterization of chars from coal-tire copyrolysis  

SciTech Connect (OSTI)

The objective of this work is the characterization of the solid conversion product from coal-tire copyrolysis because, nowadays, any new process should be faced without resolving the problem of the subproducts generated. A low-rank coal and a nonspecific mixture of scrap automotive tires, 50/50 w/w, have been coprocessed at 400 C for 30 min at different H{sub 2} pressures and atmospheres. Once the most valuable conversion products, the liquids, were recovered by tetrahydrofuran extraction, a complementary battery of analytical techniques was applied to characterize the solids or chars, looking for their possible use. {sup 13}C nuclear magnetic resonance, infrared, immediate and ultimate analyses, ASA, and scanning electron microscopy-energy-dispersive X-ray spectrometry were performed on them. By X-ray diffractometry the presence of sphalerite, pyrrhotite, and anhydrite was detected. Thermogravimetric studies demonstrated that the combustion induction temperature is 400 C. Char combustion tests at 900 C with discussion of NO{sub x}, SO{sub x}, and polycyclic aromatic hydrocarbon emissions are included. Mineral matter behaves as if only coal is processed with the Zn exception, from ZnO in the tire, which is converted into ZnS. It is shown that the char organic component has a higher aromaticity than the one from coal.

Mastral, A.M.; Callen, M.S.; Murillo, R. [CSIC, Zaragoza (Spain). Inst. de Carboquimica] [CSIC, Zaragoza (Spain). Inst. de Carboquimica; Alvarez, R.; Clemente, C. [UM, Madrid (Spain). ETS de Ingenieros de Minas] [UM, Madrid (Spain). ETS de Ingenieros de Minas

1999-07-01T23:59:59.000Z

234

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

235

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.

236

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

237

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

238

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

239

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

240

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.

Note: This page contains sample records for the topic "turbo aero tires" 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

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

242

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

243

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.

244

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

245

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.

246

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

247

Statewide plan for utilization of scrap tires in Kansas. Final report, September 1993-May 1995  

SciTech Connect (OSTI)

This study was conducted to determine the current and future supply of scrap tire rubber and the feasibility of using scrap tires in Kansas for various purposes. The goal was to determine if a sufficient quantity of recycled rubber existed and what the cost would be to meet the ISTEA (Intermodal Surface Transportation Efficiency Act) requirements for 1995 and thereafter. The four tasks included in the study were: surveying scrap tire utilization plans in other states; inventory scrap tires in Kansas; estimating scrap tire generation in the future; and determiming cost effectiveness of various uses of scrap tires. Currently there are 4.5 to 5.5 million scrap tires in Kansas and the annual generation of scrap tires is estimated to be 2 to 3 million. The ISTEA mandate would require an estimated 367,000 scrap tires be recycled annually. KDOT has used more rubber in 1993 and 1994 than will be required by 1997 when the 20% required by ISTEA is in effect.

Nelson, R.G.; Hossain, M.

1995-05-01T23:59:59.000Z

248

E-Print Network 3.0 - automobile tires final Sample Search Results  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: automobile tires final Page: << < 1 2 3 4 5 > >> 1 VEHICLE FUEL Informing Consumers, Summary:...

249

Assessment of Tire Technologies and Practices for Potential Waste and Energy Use Reductions  

E-Print Network [OSTI]

and Practices for Potential Waste and Energy Use ReductionsPractices for Potential Waste and Energy Use Reductions Maythe study involving research on waste and energy saving tire

Lutsey, Nicholas P.; Regnier, Justin; Burke, Andy; Melaina, Marc W; Bremson, Joel; Keteltas, Michael

2006-01-01T23:59:59.000Z

250

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.

251

RESEARCH TRAINING GROUP GRK 1095/1: "AERO-THERMODYNAMIC DESIGN OF A SCRAMJET PROPULSION SYSTEM"  

E-Print Network [OSTI]

RESEARCH TRAINING GROUP GRK 1095/1: "AERO-THERMODYNAMIC DESIGN OF A SCRAMJET PROPULSION SYSTEM" U conception. In this context only the use of a scramjet-propulsion system meets all the aerodynamic it must be mentioned that scramjet-technologies are one of the key technologies for hypersonic flight

252

Aero-Acoustic Analysis of Wells Turbine for Ocean Wave Energy Conversion  

E-Print Network [OSTI]

Aero-Acoustic Analysis of Wells Turbine for Ocean Wave Energy Conversion Ralf Starzmann Fluid the water wave motion into a bi-directional air flow, which in turn drives an air turbine. The Wells turbine the environmental impact of an in situ Wells turbine in more detail requires an in depth understanding

Frandsen, Jannette B.

253

Swept Blade Aero-Elastic Model for a Small Wind Turbine (Presentation)  

SciTech Connect (OSTI)

A preprocessor for analyzing preswept wind turbines using the in-house aero-elastic tool coupled with a multibody dynamic simulator was developed. A baseline 10-kW small wind turbine with straight blades and various configurations that featured bend-torsion coupling via blade-tip sweep were investigated to study their impact on ultimate loads and fatigue damage equivalent loads.

Damiani, R.; Lee, S.; Larwood, S.

2014-07-01T23:59:59.000Z

254

OC3 -- Benchmark Exercise of Aero-Elastic Offshore Wind Turbine Codes: Preprint  

SciTech Connect (OSTI)

This paper introduces the work content and status of the first international investigation and verification of aero-elastic codes for offshore wind turbines as performed by the "Offshore Code Comparison Collaboration" (OC3) within the "IEA Wind Annex XXIII -- Subtask 2".

Passon, P.; Kuhn, M.; Butterfield, S.; Jonkman, J.; Camp, T.; Larsen, T. J.

2007-08-01T23:59:59.000Z

255

An aero-elastic flutter based electromagnetic energy harvester with wind speed augmenting funnel  

E-Print Network [OSTI]

An aero-elastic flutter based electromagnetic energy harvester with wind speed augmenting funnel been used to convert wind flow energy into mechanical vibration, which is then transformed-scale renewable energy generating systems such as wind turbines, thermal generators, and solar panels, energy

Stanford University

256

Flight Measurements of the Aero-Optical Environment Around a Flat-Windowed Turret  

E-Print Network [OSTI]

be acquired; this provided statistical data over a large range of viewing angles between looking- forward directed-energy system's field of regard. To verify wind-tunnel experiments [5] and computational-front sensor providing an extensive aero-optical mapping. The primary data were acquired at Mach 0

Gordeyev, Stanislav

257

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

258

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

259

IMPACT OF TIRE AND AERODYNAMIC AIDS ON TRUCK PERFORMANCE ALONG UPGRADE SECTIONS  

E-Print Network [OSTI]

IMPACT OF TIRE AND AERODYNAMIC AIDS ON TRUCK PERFORMANCE ALONG UPGRADE SECTIONS Hesham Rakha1 and aerodynamics aids on the truck acceleration behavior. The objectives of this paper are two-fold. First of vehicle tires, the vehicle's aerodynamic features, the percentage mass on the tractive axle

Rakha, Hesham A.

260

Copyright 2013 Clemson University 1 Clemson Tire Industry Conference -April 24 26, 2013  

E-Print Network [OSTI]

: TECHNOLOGY AND PRODUCTS: Moderator: Harvey Bordsky, Managing Director, Retread Tire Association toward the standard minimum. Due to the many influential factors leading to automobile accidents and international economic conditions in the major tire producing areas of the world ­ namely, Asia including Japan

Bolding, M. Chad

Note: This page contains sample records for the topic "turbo aero tires" 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

M.-T. DO, P. MARSAC, Y. DELANNE Prediction of Tire/Wet Road Friction from  

E-Print Network [OSTI]

M.-T. DO, P. MARSAC, Y. DELANNE 1 Prediction of Tire/Wet Road Friction from Road Surface, validation of a contact model for the prediction of low-speed friction from road surface microtexture the friction ­ speed curve from road- and tire measurable parameters. The model development is briefly

Paris-Sud XI, Université de

262

Dynamic Friction Models for Longitudinal Road/Tire Interaction: Experimental Results  

E-Print Network [OSTI]

Dynamic Friction Models for Longitudinal Road/Tire Interaction: Experimental Results C. Canudas dynamic friction force model for the longitudinal road/tire interaction for wheeled ground vehicles is val- idated via experiments with an actual passenger vehicle. Contrary to common static friction/slip maps

Tsiotras, Panagiotis

263

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

264

Removal of polychlorinated phenols in sequential anaerobic-aerobic biofilm reactors packed with tire chips  

SciTech Connect (OSTI)

Scrap vehicle tire chips were used as packing material for sequential anaerobic-aerobic biofilm reactors to remove persistent chlorinated hydrocarbons. Adsorption capacity of scrap tires was greater under acidic conditions than under basic conditions. However, it was only approximately 0.04 to 0.3% of that of activated carbon. The amount of biomass that attached to the surface of scrap tires was 3.16 and 3.72 mg volatile suspended solids/cm{sup 2} after 14 and 37 days, respectively. Two laboratory-scale, down-flow anaerobic-aerobic biofilm reactors packed with tire chips were operated to remove 2,4-dichlorophenol (DCP) and 4-chlorophenol (CP). More than 98% of DCP was dehalogenated to CP in the anaerobic reactor, 70 to 98% of which was subsequently degraded in the aerobic reactor. Scrap tires did not cause any operational problems when used as biofilter media.

Shin, H.S.; Yoo, K.S.; Park, J.K.

1999-05-01T23:59:59.000Z

265

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

266

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

267

Pyrolysis of scrap tires: Can it be profitable?  

SciTech Connect (OSTI)

Pyrolysis--the thermal degradation in the absence of oxygen--is one way to reprocess scrap tires. The products are fuel gas, oils, and a solid residue (char), which contains appreciable quantities of mineral matter and low-grade carbon black. The three products have comparable yields by weight. The two most important factors affecting process economics are the tipping fees charged for tire disposal and the selling prices of the products. Selling prices of the products yield low returns because of the low market value of the fuels and the low quality of the recovered char or carbon black. Therefore, to obtain a positive cash flow, it would be desirable to develop a process based on the recovery of value-added products such as high-grade carbon black, activated carbon, or valuable chemicals (e.g., benzene, toluene, and xylene). The authors believe that significant improvement in the economics can be accomplished by upgrading the primary pyrolysis products to secondary products of higher value.

Wojtowicz, M.A.; Serio, M.A.

1996-10-01T23:59:59.000Z

268

X-ray characterization of tire derived particles resulting from different solvents  

SciTech Connect (OSTI)

Currently, 200 million scrap tires are being annually stockpiled, landfilled, or illegally dumped, with ca. 50 million scrap tires being recycled in a variety of ways. The current disposal methods are causing numerous short-term environmental problems. Whole tires occupy large amounts of space and may {open_quotes}float{close_quotes} or rise to the top of landfills, causing puncturing of the landfill cover. In an attempt to prevent floating, many landfills require that the scrap tires be shredded, a process which is energy intensive and wasteful. Scrap tire stock piles produce large health risks by providing a place for rodents and mosquitos to breed -- aiding in the spread of diseases. Large stockpile fires have also broken out in major cities in Florida, Texas, Virginia, and Washington. These fires are long lasting and produce unwanted smoke into the environment. For many reasons, the recycling of scrap tires is desirable. This paper describes the processing of scrap tires by several liquids and acids.

Cummings, R.C.; Smithhart, C.B.; Quin, J.; Wertz, D.L. [Univ. of Southern Mississippi, Hattiesburg, MS (United States)

1995-12-31T23:59:59.000Z

269

Regulatory impacts and affects of emissions of the combustion of scrap tires  

SciTech Connect (OSTI)

Scrap tires have several advantages as a fuel for combustion. Combustion of scrap tires as a supplement to existing fuel is an economically viable alternative. In addition, policies that would reduce the growing stockpiles of scrap tires would also reduce its potential environmental hazards (emissions of toxic compounds from arson-caused fires and breeding ground for disease-carrying insects). The growing number of industrial applications as a supplemental fuel include cement kilns, the pulp and paper industry, and utility boilers. A growing body of studies of air emissions from scrap tire and tire-derived fuel (TDF-) supplemented combustion has been conducted over the past decade. For some pollutants and applications, co-combustion with TDF has been shown to decrease emissions. This paper summarizes trends in the effects of supplementing combustion with TDF on emissions of different pollutants. At the same time, scrap tire and TDF combustion are not currently regulated by a specific NSPS or MACT standard because these standards typically regulate an emission unit, not a fuel type. The USEPA is currently debating how to regulate facilities which supplement their combustion with scrap tires. This paper discusses some options that the USEPA is considering.

Karell, M.A.; Blumenthal, M.H.

1999-07-01T23:59:59.000Z

270

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 -...

271

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...

272

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

273

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

274

Test burning of tire-derived fuel in solid fuel combustors  

SciTech Connect (OSTI)

This study was commissioned to determine the overall viability of utilizing scrap tire chips, known as tire-derived fuel (TDF), as a supplemental fuel in conventional coal-fired boilers. The study involved actual tests at Monsanto Company`s W.G. Krummrich Plant in Sauget, Illinois, as well as general extrapolations as to the feasibility of using TDF at other sites. This report will show that TDF can be an excellent supplemental fuel supply, providing a cost-effective fuel source while helping to alleviate the dilemma of scrap tire disposal.

Dennis, D.C. [Monsanto Copany, Sauget, IL (United States)

1994-12-31T23:59:59.000Z

275

Chemi-microbial processing of waste tire rubber: A project overview  

SciTech Connect (OSTI)

PNL is developing a method to use thiophillic microorganisms to devulcanize (biodesulfurize) the surface of ground rubber particles, which will improve the bonding and adhesion of the ground tire rubber into the virgin tire rubber matrix. The Chemi-microbial processing approach, introduced in this paper, is targeted at alleviating the waste tire problem in an environmentally conscious manner; it may also be applied to improve asphaltic materials and rubber and polymeric wastes to facilite their recycling. This paper outlines the logic and technical methods that will be used.

Romine, R.A.; Snowden-Swan, L.

1993-12-01T23:59:59.000Z

276

Recovery and evaluation of the solid products produced by thermocatalytic decomposition of tire rubber compounds  

E-Print Network [OSTI]

and carbon blacks for reuse. It is noted that molten salts, especially aluminum chloride (AlCl3), of which the base metal has an electron structure t 4 requirement with the polymer undergoing decomposition, can act as catalysts for decomposing tire... rubbers.10 The fact that molten salt catalysis can be used to decompose tire rubbers has been known for several decades.11-12 However, to date no literature reports a successful commercial catalytic conversion process for the disposal of scrap tires...

Liang, Lan

2007-04-25T23:59:59.000Z

277

Utilization of surface-treated rubber particles from waste tires  

SciTech Connect (OSTI)

During a 12-month program, the author successfully demonstrated commercial applications for surface-treated rubber particles in two major markets: footwear (shoe soles and components) and urethane-foam carpet underlay (padding). In these markets, he has clearly demonstrated the ease of using R-4080 and R-4030 surface-treated rubber particles in existing manufacturing plants and processes and have shown that the material meets or exceeds existing standards for performance, quality, and cost-effectiveness. To produce R-4080 and R-4030, vulcanized rubber, whole-tire material is finely ground to particles of nominal 80 and mesh size respectively. Surface treatment is achieved by reacting these rubber particles with chlorine gas. In this report, the author describes the actual test and evaluations of the participant companies, and identifies other potential end uses.

Smith, F.G. [Argonne National Lab., IL (United States). Energy Systems Div.]|[Environmental Technologies Alternatives, Inc., Lima, OH (United States)

1994-12-01T23:59:59.000Z

278

Epoxy composites based on inexpensive tire waste filler  

SciTech Connect (OSTI)

Tire waste (TW) was recycled as raw material for the preparation of DGEBA-type epoxy composite materials. The effects of filler amount and epoxy type on the mechanical properties of the composites were investigated. Tensile strength and Young’s modulus of the composites with NPEL were generally higher than composites with NPEF. The appropriate mass level for TW in both type composites was found to be 20 wt%. The equilibrium water sorption of NPEL/TW and NPEF/TW composites for 14-day immersion was determined as 0.10 % and 0.21 %, respectively. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used for characterization of the composites.

Ahmetli, Gulnare, E-mail: ahmetli@selcuk.edu.tr; Gungor, Ahmet, E-mail: ahmetli@selcuk.edu.tr; Kocaman, Suheyla, E-mail: ahmetli@selcuk.edu.tr [Department of Chemical Engineering, Faculty of Engineering, Selcuk University, 42031 Konya (Turkey)

2014-05-15T23:59:59.000Z

279

Energy Efficiency in Heavy Vehicle Tires, Drivetrains, and Braking Systems  

SciTech Connect (OSTI)

This document was prepared to support the primary goals of the Department of Energy, Office of Heavy Vehicle Technologies. These were recently stated as follows: ''Develop by 2004 the enabling technologies for a class 7-8 truck with a fuel efficiency of 10 mpg (at 65 mph) which will meet prevailing emission standards. For Class 3-6 trucks operating on an urban driving cycle, develop by 2004 commercially viable vehicles that achieve at least double the fuel economy of comparable current vehicles (1999), and as a research goal, reduce criteria pollutants to 30% below EPA standards. Develop by 2004 the diesel engine enabling technologies to support large-scale industry dieselization of Class 1 and 2 trucks, achieving a 35 % fuel efficiency improvement over comparable gasoline-fueled trucks, while meeting applicable emissions standards.'' The enabling technologies for improving the fuel efficiency of trucks, include not only engine technologies but also technologies involved with lowering the rolling resistance of tires, reducing vehicle aerodynamic drag, improving thermal management, and reducing parasitic frictional losses in drive train components. Opportunities also exist for making better use of the energy that might ordinarily be dissipated during vehicle braking. Braking systems must be included in this evaluation since safety in truck operations is vital, and braking requirements are greater for vehicles having lowered resistance to rolling. The Office of Heavy Vehicle Technologies has initiated a program to improve the aerodynamics of heavy vehicles through wind tunnel testing, computational modeling, and on-road evaluations. That activity is described in a separate multi-year plan; therefore, emphasis in this document will be on tires, drive trains, and braking systems. Recent, dramatic fluctuations in diesel fuel prices have emphasized the importance of effecting savings in truck fuel economy by implementing new component designs and materials.

Peter J. Blau

2000-04-26T23:59:59.000Z

280

Water quality effects of tire chip fills placed above the groundwater table  

SciTech Connect (OSTI)

Two field trials were constructed to investigate the effect on water quality of tire chip fills placed above the groundwater table. Control wells were used to distinguish the substances naturally present in groundwater from those that leached from tire chips. There was no evidence that tire chips increased the level of substances that have a primary drinking water standard. In addition, there was no evidence that tire chips increased the levels of aluminum, zinc, chloride or sulfate which have secondary (aesthetic) drinking water standards. Under some conditions iron levels may exceed their secondary standard. It is likely that manganese levels will exceed their secondary standard, however, manganese is naturally present in groundwater in many areas. Two sets of samples were tested for organics. Results were below the method detection limit for all compounds.

Humphrey, D.N.; Katz, L.E. [Univ. of Maine, Orono, ME (United States). Dept. of Civil and Environmental Engineering; Blumenthal, M. [Scrap Tire Management Council, Washington, DC (United States)

1997-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "turbo aero tires" 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

Optimization of scrap tire pyrolysis using a continuous-feed steam environment  

SciTech Connect (OSTI)

Estimates of the generation of scrap tires produced in the United States are on the order of 2 million tons per year. Although these tires contain a high percentage of useful hydrocarbons, steel and carbon black, approximately 70% are not effectively recycled. Recently, pyrolytic recycling of scrap tire (thermal decomposition in the absence of O{sub 2}) is receiving renewed interest because of its ability to produce valuable hydrocarbon products. We have developed a process which permits a continuous feed processing of scrap tires in a non-combustible stream environment. This system utilizes a soft seal system that operates at atmospheric pressures while minimizing any fugitive emissions. This process increases the efficiency and control of present approaches by lowering the energy requirements while maximizing the collection of valuable products. Initial bench-scale results will be presented.

Burrell, T.W.; Frank, S.R.; Rich, M.L. [Univ. of Northern Iowa, Cedar Falls, IA (United States)] [and others

1995-12-01T23:59:59.000Z

282

Camera that takes pictures of aircraft and ground vehicle tires can save lives  

E-Print Network [OSTI]

;Camera that takes pictures of aircraft and ground vehicle tires can save lives Yair Wiseman Holon Institute of Technology Computer Science Department Holon 58102, Israel E-mail: wiseman

Wiseman, Yair

283

AeroSys: Proposed Penalty (2011-SCE-1624) | Department of Energy  

Office of Environmental Management (EM)

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 May Jun Jul(Summary) "of EnergyEnergy Cooperation |South ValleyASGovLtr.pdfAboutSheet,Proposed Penalty (2011-SCE-1624) AeroSys:

284

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

285

Laboratory study on the use of tire shreds and rubber-sand in backfills and reinforced soil applications. Final report  

SciTech Connect (OSTI)

Millions of scrap tires are discarded annually in the United States, the bulk of which are currently landfilled or stockpiled. This consumes valuable landfill space, or, if improperly disposed, creates a fire hazard and provides a prolific breeding ground for rates and mosquitoes. The use of tire shreds as lightweight fill material can sharply reduce the tire disposal problem. The present study, based on laboratory testing and numerical modeling, examines the feasibility of incorporating tire shreds and rubber-sand mixtures as lightweight geomaterial in embankments and backfills.

Bernal, A.; Lovell, C.W.; Salgado, R.

1996-12-20T23:59:59.000Z

286

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

287

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

288

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

289

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

290

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

291

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

292

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

293

Circulating fluidized bed gasification of a tire-derived fuel  

SciTech Connect (OSTI)

A market available tire-derived fuel (TDF) was continuously fed in a laboratory scale CFB gasifier operated with air and steam as oxidizers. Silica sand, having a Sauter mean diameter of 155 {micro}m, was used as bed material. The riser and the recirculation column were maintained at 850 C by means of electric heaters driven by electronic controllers. The experiments were carried out at fixed values of solids mass flux (10 kg/sm{sup 2}) and superficial gas velocity in the primary (1.7 m/s) as well as in the secondary zone (2.7 m/s). The equivalence ratios and the H{sub 2}O/TDF d.a.f. ratio were varied between 0.3 and 0.6 and between 0.4 and 1.3, respectively. For each run, data from pressure electronic transducers, thermocouples and gas analyzers were processed to evaluate riser axial profiles of pressure, temperature and gas concentration (in terms of CO, H{sub 2}, CH{sub 4}, C{sub n}H{sub m} and CO{sub 2} content). Collecting, sieving and analyzing solids hold-up in the riser allowed estimation of the amount of carbon particles and their size distribution. Carbon conversion efficiency, specific gas yield and energy output were also determined.

Arena, U.; Cammarota, A. [Ist. di Ricerche Sulla Combustione-C.N.R., Napoli (Italy)

1997-12-31T23:59:59.000Z

294

Effect of Wide-Based Single Tires on Fuel Efficiency of Class 8 Combination Trucks  

SciTech Connect (OSTI)

In 2007 and 2008, the Oak Ridge National Laboratory, in collaboration with several industry partners, collected real-world performance and situational data for long-haul operations of Class- 8 trucks from a fleet engaged in normal freight operations. Such data and information is useful to support Class-8 modeling of heavy-truck performance, technology evaluation efforts for energy efficiency, and to provide a means of accounting for real-world driving performance within heavy-truck research and analyses. This paper presents some general statistics, including distribution of idling times during long-haul trucking operations. However, the main focus is on the analysis of some of the extensive real-world information collected in this project, specifically on the assessment of the effect that different types of tires (i.e., dual tires vs. new generation single wide-based tires or NGSWBTs) have on the fuel efficiency of Class-8 trucks. The tire effect is also evaluated as a function of the vehicle load level. In all cases analyzed, the statistical tests performed strongly suggest that fuel efficiencies achieved when using all NGSWBTs or combinations of duals and NGSWBTs are higher than in the case of a truck equipped with all dual tires.

Franzese, Oscar [ORNL] [ORNL; Knee, Helmut E [ORNL] [ORNL; Slezak, Lee [U.S. Department of Energy] [U.S. Department of Energy

2010-01-01T23:59:59.000Z

295

Pyrolysis kinetics of scrap tire rubbers. 1: Using DTG and TGA  

SciTech Connect (OSTI)

Tire pyrolysis kinetics was investigated to explore an economically viable design for the pyrolysis process. Derivative thermogravimetry (DTG) and thermogravimetric analysis (TGA) were found to provide valuable information on pyrolysis kinetics and mechanisms of a heterogeneous compound like scrap tire rubbers. Kinetic parameters of each compositional compound were obtained by analyzing DTG and TGA results with a series of mathematical methods proposed in this study. The pyrolysis kinetics of the scrap tire rubbers tested was well accounted for by the first-order irreversible independent reactions of three compositional compounds. The sidewall and tread rubber exhibited different thermal degradation patterns, suggesting a compositional difference between them. Isothermal pyrolysis results showed that the sidewall rubber would hardly be degraded at low temperature regions (<600 K), whereas it would be more rapidly degraded than the tread rubber at higher temperatures ({>=}746 K). Because of the shorter pyrolysis time, the higher isothermal pyrolysis temperature appeared to be more economically favorable.

Kim, S.; Park, J.K. [Univ. of Wisconsin, Madison, WI (United States); Chun, H.D. [Research Inst. of Industrial Science and Technology, Pohang (Korea, Republic of)

1995-07-01T23:59:59.000Z

296

Design of a bench-scale apparatus for processing carbon black derived from scrap tires  

E-Print Network [OSTI]

(incineration) or as a filler for asphalt. Incineration has been employed in an attempt to harness the high calorific value of scrap tires. However, disposal via incineration may not maximize the potential economic recovery of energy and chemical materials... into liquid fuels and forms of solid carbon such as carbon black and activated carbon. Previous work in this area utilizes pyrolysis. ' There are several commercial, pilot, and bench-scale tire 2-4, 6-8 pyrolysis systems in use today. Many of these employ...

Woodrow, Philip Travis

1996-01-01T23:59:59.000Z

297

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

298

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

299

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

300

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

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


301

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

302

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

303

Tailored Recovery of Carbons from Waste Tires for Enhanced Performance as Anodes in Lithium-ion Batteries  

SciTech Connect (OSTI)

Morphologically tailored pyrolysis-recovered carbon black is utilized in lithium-ion batteries as a potential solution for adding value to waste tire-rubber-derived materials. Micronized tire rubber was digested in a hot oleum bath to yield a sulfonated rubber slurry that was then filtered, washed, and compressed into a solid cake. Carbon was recovered from the modified rubber cake by pyrolysis in a nitrogen atmosphere. The chemical pretreatment of rubber produced a carbon monolith with higher yield than that from the control (a fluffy tire-rubber-derived carbon black). The carbon monolith showed a very small volume fraction of pores of widths 3 4 nm, reduced specific surface area, and an ordered assembly of graphitic domains. Electrochemical studies on the recovered-carbon-based anode revealed an improved Li-ion battery performance with higher reversible capacity than that of commercial carbon materials. Anodes made with a sulfonated tire-rubber-derived carbon and a control tire-rubber-derived carbon, respectively, exhibited an initial coulombic efficiency of 80% and 45%, respectively. The reversible capacity of the cell with the sulfonated carbon as anode was 400 mAh/g after 100 cycles, with nearly 100% coulombic efficiency. Our success in producing higher performance carbon material from waste tire rubber for potential use in energy storage applications adds a new avenue to tire rubber recycling.

Naskar, Amit K [ORNL; Bi, [ORNL; Saha, Dipendu [ORNL; Chi, Miaofang [ORNL; Bridges, Craig A [ORNL; Paranthaman, Mariappan Parans [ORNL

2014-01-01T23:59:59.000Z

304

Solid waste reclamation and recycling: Tires. (Latest citations from the NTIS bibliographic database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning the development, management, economic analysis, and environmental impacts of reclamation and recycling of scrap tires. The design and evaluation of recycling processes are examined. Recycled products for use in construction materials, embankment fills, fuel supplements, and material substitutions are covered. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1996-08-01T23:59:59.000Z

305

Solid waste reclamation and recycling: Tires. (Latest citations from the NTIS bibliographic database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations concerning the development, management, economic analysis, and environmental impacts of reclamation and recycling of scrap tires. The design and evaluation of recycling processes are examined. Recycled products for use in construction materials, embankment fills, fuel supplements, and material substitutions are covered. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1995-09-01T23:59:59.000Z

306

Product formulations using recycled tire crumb rubber. Final report/project accomplishments summary  

SciTech Connect (OSTI)

The objective of this project was to combine crumb rubber and synthetic fiber obtained from scrap tires with thermoplastic polymers and convert these materials into commercially useful, high-value products. A specific goal was to use these materials for roofing, while remaining cognizance of other potential applications.

Lula, J.W.; Bohnert, G.W.

1998-02-01T23:59:59.000Z

307

Estimation of vehicle lateral tire-road forces: a comparison between extended and unscented Kalman filtering  

E-Print Network [OSTI]

Estimation of vehicle lateral tire-road forces: a comparison between extended and unscented Kalman of accident data reveals that losing the vehicle control is responsible for a huge proportion of car accidents. Preventing such kind of accidents using vehicle control systems, requires certain input data concerning

Paris-Sud XI, Université de

308

On bicycle tire tracks geometry, hatchet planimeter, Menzin's conjecture and oscillation  

E-Print Network [OSTI]

On bicycle tire tracks geometry, hatchet planimeter, Menzin's conjecture and oscillation of unicycle tracks Mark Levi and Serge Tabachnikov April 13, 2008 Abstract The model of a bicycle is a unit wheel is fixed on the bicycle frame); the same model describes the hatchet planimeter. The trajectory

Tabachnikov, Sergei

309

Tractrices, Bicycle Tire Tracks, Hatchet Planimeters, and a 100-year-old Conjecture  

E-Print Network [OSTI]

Tractrices, Bicycle Tire Tracks, Hatchet Planimeters, and a 100-year-old Conjecture Robert Foote, Mark Levi, and Serge Tabachnikov Abstract. We study a simple model of bicycle motion: A bicycle measuring area of plane domains. The trajectory of the front wheel and the initial position of the bicycle

Foote, Robert L.

310

Tractrices, Bicycle Tire Tracks, Hatchet Planimeters, and a 100-year-old Conjecture  

E-Print Network [OSTI]

Tractrices, Bicycle Tire Tracks, Hatchet Planimeters, and a 100-year-old Conjecture R. L. Foote M. Levi S. Tabachnikov 1 Introduction The geometry of the tracks left by a bicycle has received much of a bicycle and that of a curious device known as a hatchet planimeter, and we will prove a conjecture about

Tabachnikov, Sergei

311

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

312

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

313

The AeroCom Evaluation and Intercomparison of Organic Aerosol in Global Models  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

This paper evaluates the current status of global modeling of the organic aerosol (OA) occurrence in the troposphere and analyzes the differences calculated between models as well as between models and observations. Thirty-one global chemistry/transport and general circulation models have participated in this intercomparison, in the framework of AeroCom phase II. The simulation of OA varies greatly between models in terms of the magnitude of primary emissions, secondary OA (SOA) formation, the number of OA species used (2 to 62), the complexity of OA parameterizations (gas-particle partitioning, chemical aging, multiphase chemistry, aerosol microphysics), and the OA physical, chemical and optical properties. The diversity of the global OA simulation results has increased since earlier AeroCom experiments, mainly due to the increasing complexity of the SOA parameterization in models, and the implementation of new, highly uncertain, OA sources. Diversity of over an order of magnitude exists in the modeled vertical distribution of OA that deserves a dedicated future study. Furthermore, although the OA/OC ratio depends on OA sources and atmospheric processing and is important for model evaluation against OA and OC observations, it is resolved only by few global models. The median global primary OA source strength is 56 Tg a 1 (range 34 - 144 Tg a-1) and the median secondary OA source strength (natural and anthropogenic) is 19 Tg a-1 (range 13-121 Tg a-1). Among the models that take into account the semi-volatile SOA nature, the median source is calculated to be 51 Tg a-1 (range 16-121 Tg a-1), much larger than the median value of the models that calculate SOA in a more simplistic way (19 Tg a-1; range 13-20 Tg a-1, with one model at 37 Tg a-1). The median atmospheric burden of OA is 1.4 Tg (24 models in the range of 0.6-2.0 Tg and 4 between 2.4-3.8 Tg) with a median OA lifetime of 5.4 days (range 3.8-9.6 days). In models that reported both OA and sulfate burdens, the median value of the OA/sulfate burden ratio of is calculated to be 0.77; 13 models calculate a ratio lower than 1, and 9 models higher than 1. For 26 models that reported OA deposition fluxes, the median wet removal is 70 Tg a-1 (range 28-209 Tg a-1), which is on average 85% of the total OA deposition.

Tsigaridis, Kostas; Daskalakis, N.; Kanakidou, M.; Adams, P. J.; Artaxo, Paulo; Bahadur, R.; Balkanski, Y.; Bauer, S.; Bellouin, N.; Benedetti, Angela; Bergman, T.; Berntsen, T.; Beukes, J. P.; Bian, Huisheng; Carslaw, K. S.; Chin, M.; Curci, Gabriele; Diehl, Thomas; Easter, Richard C.; Ghan, Steven J.; Gong, S.; Hodzic, Alma; Hoyle, Christopher R.; Iversen, T.; Jathar, S.; Jimenez, J. L.; Kaiser, J. W.; Kirkevag, A.; Koch, Dorothy; Kokkola, H.; Lee, Y. H.; Lin, G.; Liu, Xiaohong; Luo, Gan; Ma, Xiaoyan; Mann, G. W.; Mihalopoulos, Nikos; Morcrette, J. -J.; Muller, J. F.; Myhre, G.; Myriokefalitakis, S.; Ng, Nga L.; O'Donell, D.; Penner, J. E.; Pozzoli, L.; Pringle, K. J.; Russell, Lynn; Schulz, M.; Sciare, J.; Seland, O.; Shindell, Drew; Sillman, S.; Skeie, R. B.; Spracklen, D. V.; Stavrakou, T.; Steenrod, Stephen D.; Takemura, T.; Tiitta, P.; Tilmes, S.; Tost, H.; van Noije, T.; van Zyl, P. G.; von Salzen, Knut; Yu, Fangqun; Wang, Zaizi; Wang, Zhilli; Zaveri, Rahul A.; Zhang, Hua; Zhang, Kai; Zhang, Qi; Zhang, Xiaoye

2014-10-15T23:59:59.000Z

314

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

315

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

316

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

317

Subsurface flow constructed wetland: treatment of domestic wastewater by gravel and tire chip media and ultraviolet disinfection of effluent  

E-Print Network [OSTI]

and volatile suspended solids, NH?, P, and fecal and total coliforms. Differences between medium types in wetland performance were found for the parameters of BOD? and P, in which tire chip wetlands outperformed gravel wetlands. The average percent reduction...

Richmond, Amanda Yvette

2002-01-01T23:59:59.000Z

318

Vehicle Technologies Office Merit Review 2014: Improving Vehicle Fuel Efficiency Through Tire Design, Materials, and Reduced Weight  

Broader source: Energy.gov [DOE]

Presentation given by Cooper Tire at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about improving vehicle fuel efficiency...

319

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

320

Wave transmission and mooring-force characteristics of pipe-tire floating breakwaters  

SciTech Connect (OSTI)

The results are presented of a series of prototype scale tests of a floating breakwater that incorporates massive cylindrical members (steel or concrete pipes, telephone poles, etc.) in a matrix of scrap truck or automobile tires, referred to as the Pipe-Tire Breakwater (PT-Breakwater). Tests were conducted in the large wave tank at the US Army Coastal Engineering Research Center (CERC). Breakwater modules were preassembled at SUNY in Buffalo, New York, and then transported to CERC by truck, where final assembly on location was again performed by SUNY personnel. Wave-tank tests were conducted jointly by CERC and SUNY personnel. A series of wave-tank experiments and mooring system load-deflection tests were performed, and are described. Wave-transmission and mooring-load characteristics, based on 402 separate tests, were established and are reported. (LCL)

Harms, Volker W.; Westerink, Joannes J.

1980-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "turbo aero tires" 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

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

322

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

323

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

324

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

325

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

326

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

327

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

328

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

329

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.

330

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

331

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

332

Feasibility study for a demonstration plant for liquefaction and coprocessing of waste plastics and tires  

SciTech Connect (OSTI)

The results of a feasibility study for a demonstration plant for the liquefaction of waste polymers and the coprocessing of waste polymers with coal are presented. The study was carried out by a committee of participants from five universities, the US DOE Federal Energy Technology Center, and Burns & Roe Corporation. The study included an assessment of current recycling practices, a review of pertinent research, and a survey of feedstock availability. A conceptual design for a demonstration plant was developed and a preliminary economic analysis for various feedstock mixes was carried out. The base case for feedstock scenarios was chosen to be 200 tons per day of waste plastic and 100 tons per day of waste tires. For this base case, the return on investment (ROI) was found to range from 8% to 16% as tipping fees for waste plastic and tires increased over a range comparable to that existing in the US. A number of additional feedstock scenarios that were both more and less profitable were also considered and are briefly discussed.

Huffman, G.P.; Shah, N. [Univ. of Kentucky, Lexington, KY (United States); Shelley, M. [Auburn Univ., AL (United States)] [and others

1998-04-01T23:59:59.000Z

333

A LuGre Tire Friction Model with Exact Aggregate Dynamics Panagiotis Tsiotras, Efstathios Velenis and Michel Sorine  

E-Print Network [OSTI]

A LuGre Tire Friction Model with Exact Aggregate Dynamics Panagiotis Tsiotras, Efstathios Velenis and Michel Sorine Abstract-- The LuGre dynamic point contact friction model for the two-dimensional translation of a body on a surface has been used in the past to derive a model for the friction forces

Tsiotras, Panagiotis

334

Tired of changing light bulbs AND want to save money? Still using 100 year-old technology?  

E-Print Network [OSTI]

THE COMPACT FLUORESCENT LIGHT BULB CHALLENGE! · A 23 W Compact bulb gives the same light as a 100W regular with compact fluorescent bulbs! Toss `Em Install `Em Most big stores stock them. We bought ours at Costco @ $2Tired of changing light bulbs AND want to save money? Still using 100 year-old technology? TAKE

Glashausser, Charles

335

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

336

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

337

Characterization of asphalt cements modified with crumbed rubber from discarded tires. Final report  

SciTech Connect (OSTI)

The potential legislative requirement for incorporation of scrap rubber into asphalt blends mandated a thorough evaluation of the influence of scrap rubber additives on the physical properties and aging characteristics of rubber/asphalt blends. Blends with up to 20 percent ground vulcanized rubber (both crumb and 200 mesh powder particles) from recycled tires were prepared with asphalt cements of various grades (AC5 - AC30) and evaluated using DMA. Blends produced from powdered rubber particles exhibited Newtonian behavior at high temperatures; similar behavior was not observed with crumb rubber blends. The mechanical properties of asphalt-rubber blends depend upon the concentration of rubber additives, the particle dimensions, and the chemical composition of the asphalt.

Daly, W.H.; Negulescu, I.I.

1994-11-01T23:59:59.000Z

338

Hydrocoprocessing of scrap automotive tires and coal. Analysis of oils from autoclave coprocessing  

SciTech Connect (OSTI)

Hydrocoprocessing of scrap automotive tires and a low-rank coal was carried out in a magnetically stirred autoclave. Reaction temperature (400 C) and time (30 min) were kept constant in every experiment, while different pressures (10, 5, and 1 MPa of H{sub 2} and 0.1 MPa of N{sub 2}) were studied. An iron-based catalyst was used to improve yields. Derived oils were analyzed by GC-MS and TLC-FID. In terms of yields, it is shown that there is a synergism between these two materials, although it can only be observed working at low hydrogen pressure. The oils obtained in the coprocessing showed a more aromatic nature than those obtained when both materials are processed alone, and higher boiling points, suggesting that radicals from rubber and coal react between each other instead of reacting with hydrogen radicals.

Anderson, L.L.; Ding, W.; Liang, J. [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Chemical and Fuels Engineering] [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Chemical and Fuels Engineering; Callen, M.; Mastral, A.M.; Mayoral, M.C.; Murillo, R. [CSIC, Zaragoza (Spain). Inst. de Carboquimica] [CSIC, Zaragoza (Spain). Inst. de Carboquimica

1997-11-01T23:59:59.000Z

339

Application of pyrolized carbon black from scrap tires in asphalt pavement design and construction  

SciTech Connect (OSTI)

According to EPA reports (1991) of the over 242 million waste generated each year in the United State, 5% are exported, 6% recycled, 11% incinerated, and 78% are landfilled, stockpiled, or illegally dumped. A variety of uses for these tires are being studied. Among these is pyrolysis which produces 5 5% of oil, 25% of carbon black, 9% of steel, 5% of fiber and 6% of gas. Pyrolized carbon black contains 9 % of ash, 4% of sulfur, 12% of butadine copolymer and 75% of carbon black. The objective of this research is to investigate the viability of using PCB as an additive in hot mix asphalt. The use of PCB in asphalt pavement is expected not only to improve the performance of conventional asphalt, but also to provide a means for the mass disposal of waste fires.

Park, T.; Coree, B.J. [Indiana Department of Transportation, West Lafayette, IN (United States). Division of Research; Lovell, C.W. [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering

1995-12-31T23:59:59.000Z

340

Feasibility study for thermal treatment of solid tire wastes in Bangladesh by using pyrolysis technology  

SciTech Connect (OSTI)

In this study on the basis of lab data and available resources in Bangladesh, feasibility study has been carried out for pyrolysis process converting solid tire wastes into pyrolysis oils, solid char and gases. The process considered for detailed analysis was fixed-bed fire-tube heating pyrolysis reactor system. The comparative techno-economic assessment was carried out in US$ for three different sizes plants: medium commercial scale (144 tons/day), small commercial scale (36 tons/day), pilot scale (3.6 tons/day). The assessment showed that medium commercial scale plant was economically feasible, with the lowest unit production cost than small commercial and pilot scale plants for the production of crude pyrolysis oil that could be used as boiler fuel oil and for the production of upgraded liquid-products.

Islam, M.R., E-mail: mrislam1985@yahoo.com [Department of Mechanical Engineering, Rajshahi University of Engineering and Technology, Rajshahi 6204 (Bangladesh); Joardder, M.U.H.; Hasan, S.M. [Department of Mechanical Engineering, Rajshahi University of Engineering and Technology, Rajshahi 6204 (Bangladesh); Takai, K.; Haniu, H. [Department of Mechanical Engineering, National University Corporation Kitami Institute of Technology, 165 Koen-cho, Kitami City, Hokkaido 090-8507 (Japan)

2011-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "turbo aero tires" 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

Development of statistical wet weather model to evaluate frictional properties at the pavement-tire interface on hot mix asphalt concrete  

E-Print Network [OSTI]

Skid resistance on wet pavements is influenced by friction at the tire-pavement interface as well as overall hot mix asphalt (HMA) performance. It is important to control aggregate, asphalt, and mix properties to achieve desirable frictional...

Bedi, Harpreet

2001-01-01T23:59:59.000Z

342

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

343

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

344

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.

345

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

346

Fuel Economy and Emissions Effects of Low Tire Pressure, Open Windows, Roof Top and Hitch-Mounted Cargo, and Trailer  

SciTech Connect (OSTI)

To quantify the fuel economy (FE) effect of some common vehicle accessories or alterations, a compact passenger sedan and a sport utility vehicle (SUV) were subjected to SAE J2263 coastdown procedures. Coastdowns were conducted with low tire pressure, all windows open, with a roof top or hitch-mounted cargo carrier, and with the SUV pulling an enclosed cargo trailer. From these coastdowns, vehicle dynamometer coefficients were developed which enabled the execution of vehicle dynamometer experiments to determine the effect of these changes on vehicle FE and emissions over standard drive cycles and at steady highway speeds. The FE penalty associated with the rooftop cargo box mounted on the compact sedan was as high as 25-27% at higher speeds, where the aerodynamic drag is most pronounced. For both vehicles, use of a hitch mounted cargo tray carrying a similar load resulted in very small FE penalties, unlike the rooftop cargo box. The results for the SUV pulling a 3500 pound enclosed cargo trailer were rather dramatic, resulting in FE penalties ranging from 30%, for the city cycle, to 50% at 80 mph, at which point significant CO generation indicated protective enrichment due to high load. Low tire pressure cases resulted in negligible to 10% FE penalty depending on the specific case and test point. Driving with all four windows open decreased FE by 4-8.5% for the compact sedan, and 1-4% for the SUV.

Thomas, John F [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL; West, Brian H [ORNL] [ORNL

2014-01-01T23:59:59.000Z

347

Development of asphalts and pavements using recycled tire rubber. Phase 1, Technical feasibility. Technical progress report, September 1, 1994--August 31, 1995  

SciTech Connect (OSTI)

About 285 million tires are discarded every year; less than 100 million are currently being recycled, with the rest being placed in landfills and other waste sites. A solution to reduce the littering of the environment is to use ground tire rubber in road construction. Currently, about 27 million tons of asphalt are used each year in road construction and maintenance of the country`s 2 million miles of roads. If all of the waste tire rubber could be combined with asphalt in road construction, it would displace less than 6% of the total asphalt used each year, yet could save about 60 trillion Btus annually. Purpose of this project is to provide data needed to optimize the performance of rubber-asphalt concretes. The first phase is to develop asphalts and recycling agents tailored for compatibility with ground tire rubber. Chapter 2 presents results on Laboratory Testing and Evaluation: fractionate asphalt material, reblending for aromatic asphalts, verifying optimal curing parameters, aging of blends, and measuring ductilities of asphalt-rubber binders. Chapter 3 focuses on Evaluating Mixture Characteristics (modified binders). Chapter 4 covers Adhesion Test Development (water susceptibility is also covered). The final chapter focuses on the Performance/Economic Update and Commercialization Plan.

Bullin, J.A.; Davison, R.R.; Glover, C.J. [and others

1996-06-01T23:59:59.000Z

348

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

349

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

350

Further investigation of the impact of the co-combustion of tire-derived fuel and petroleum coke on the petrology and chemistry of coal combustion products  

SciTech Connect (OSTI)

A Kentucky cyclone-fired unit burns coal and tire-derived fuel, sometimes in combination with petroleum coke. A parallel pulverized combustion (pc) unit at the same plant burns the same coal, without the added fuels. The petrology, chemistry, and sulfur isotope distribution in the fuel and resulting combustion products was investigated for several configurations of the fuel blend. Zinc and Cd in the combustion products are primarily contributed from the tire-derived fuel, the V and Ni are primarily from the petroleum coke, and the As and Hg are probably largely from the coal. The sulfur isotope distribution in the cyclone unit is complicated due to the varying fuel sources. The electrostatic precipitator (ESP) array in the pc unit shows a subtle trend towards heavier S isotopic ratios in the cooler end of the ESP.

Hower, J.C.; Robertson, J.D.; Elswick, E.R.; Roberts, J.M.; Brandsteder, K.; Trimble, A.S.; Mardon, S.M. [University of Kentucky, Lexington, KY (United States). Center for Applied Energy Research

2007-07-01T23:59:59.000Z

351

Pulmonary function and symptoms of Nigerian workers exposed to carbon black in dry cell battery and tire factories  

SciTech Connect (OSTI)

The pulmonary function and symptoms of 125 workers exposed to carbon black in dry cell battery and tire manufacturing plants were investigated. There was no significant difference in the pulmonary function of the subjects in the two plants. There was good agreement in the symptoms reported in the two different factories: cough with phlegm production, tiredness, chest pain, catarrh, headache, and skin irritation. The symptoms also corroborate those reported in the few studies on the pulmonary effects of carbon black. The suspended particulate levels in the dry cell battery plant ranged from 25 to 34 mg/m/sup 3/ and the subjects with the highest probable exposure level had the most impaired pulmonary function. The pulmonary function of the exposed subjects was significantly lower than that of a control, nonindustrially exposed population. The drop in the lung function from the expected value per year of age was relatively constant for all the study subgroups but the drop per year of duration of employment was more severe in the earlier years of employment. This study has underscored the need for occupational health regulations in the industries of developing countries.

Oleru, U.G.; Elegbeleye, O.O.; Enu, C.C.; Olumide, Y.M.

1983-02-01T23:59:59.000Z

352

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

353

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

354

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

355

Aero Turbine | 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,SaveWhiskeyEnergyAd-VentaAddison isInformation Lazaro, Jump

356

DESIGNING AND OPPORTUNITY FUEL WITH BIOMASS AND TIRE-DERIVED FUEL FOR COFIRING AT WILLOW ISLAND GENERATING STATION AND COFIRING SAWDUST WITH COAL AT ALBRIGHT GENERATING STATION  

SciTech Connect (OSTI)

During the period July 1, 2000-March 31, 2004, Allegheny Energy Supply Co., LLC (Allegheny) conducted an extensive demonstration of woody biomass cofiring at its Willow Island and Albright Generating Stations. This demonstration, cofunded by USDOE and Allegheny, and supported by the Biomass Interest Group (BIG) of EPRI, evaluated the impacts of sawdust cofiring in both cyclone boilers and tangentially-fired pulverized coal boilers. The cofiring in the cyclone boiler--Willow Island Generating Station Unit No.2--evaluated the impacts of sawdust alone, and sawdust blended with tire-derived fuel. The biomass was blended with the coal on its way to the combustion system. The cofiring in the pulverized coal boiler--Albright Generating Station--evaluated the impact of cofiring on emissions of oxides of nitrogen (NO{sub x}) when the sawdust was injected separately into the furnace. The demonstration of woody biomass cofiring involved design, construction, and testing at each site. The results addressed impacts associated with operational issues--capacity, efficiency, and operability--as well as formation and control of airborne emissions such as NO{sub x}, sulfur dioxide (SO{sub 2}2), opacity, and mercury. The results of this extensive program are detailed in this report.

K. Payette; D. Tillman

2004-06-01T23:59:59.000Z

357

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

358

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

359

AeroCity LLC | 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: 160 East 300 SouthWaterBrasil Jump to:IowaResource Evaluation AndwebsiteLtd,New

360

AeroElektra | 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: 160 East 300 SouthWaterBrasil Jump to:IowaResource Evaluation

Note: This page contains sample records for the topic "turbo aero tires" 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

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

362

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

363

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

364

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.

365

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:

366

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

367

AeroSys: Order (2011-SCE-1624) | Department of Energy  

Office of Environmental Management (EM)

that certain models of space-constrained central air conditioners and air conditioning heat pumps comply with the applicable energy conservation standards; and (2) manufactured...

368

AeroSys: Test Notice (2009) | Department of Energy  

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

the compliance of various models of central air conditioners and air conditioning heat pumps with the applicable energy conservation standards. A cover letter describes the...

369

aero engine applications: Topics by E-print Network  

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

468 Application Of The Mold Sdm Process To The Fabrication Of Ceramic Parts For A Micro Gas Turbine Engine CiteSeer Summary: ... engine with silicon nitcon part is being developed....

370

aero medical society: Topics by E-print Network  

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

Technologies and Information Sciences Websites Summary: CodeofConduct British Computer Society Code of Conduct 5 SEPTEMBER 2001 VERSION 2.0 12;INTRODUCTION This Code sets out...

371

aero airlines plaanib: Topics by E-print Network  

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

the sense that it considers 343 ORIGINAL PAPER Eric J. Hall Basil V. Worgul Lubomir Smilenov Biology and Medicine Websites Summary: of ocular cataracts at younger ages has been...

372

aero airlines soovib: Topics by E-print Network  

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

the sense that it considers 343 ORIGINAL PAPER Eric J. Hall Basil V. Worgul Lubomir Smilenov Biology and Medicine Websites Summary: of ocular cataracts at younger ages has been...

373

Workplace Charging Challenge Partner: AeroVironment, Inc. | Department of  

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

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 May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment of Energyof Energy ThisJanuaryPeer Exchange

374

Zond-PanAero Windsystems Wind Farm | 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: 160 East 300 South Place:ReferenceEditWisconsin:YBR SolarZe-gen JumpZinc

375

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.

376

Development of magnetic induction machines for micro turbo machinery  

E-Print Network [OSTI]

This thesis presents the nonlinear analysis, design, fabrication, and testing of an axial-gap magnetic induction micro machine, which is a two-phase planar motor in which the rotor is suspended above the stator via mechanical ...

KöÅŸ er, Hür, 1976-

2002-01-01T23:59:59.000Z

377

Project Profile: Supercritical Carbon Dioxide Turbo-Expander...  

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

performance and the performance of the optimized s-CO2 Brayton cycle over a wide range of partial-load conditions and during transient operations representative of a typical CSP...

378

Spectrally Efficient Modulation and Turbo Coding for Communication Systems  

E-Print Network [OSTI]

. Dissertation Defense ­ p. #12;The communication problem · Transmission of information from one point to another. · Transmission can be from one place to another, · it can also be from one time to another (i.e. storage on cell towers, are assigned very limited BW. Dissertation Defense ­ p. #12;Communication obstacles

Akl, Robert

379

Supercritical Carbon Dioxide Turbo-Expander- FY12 Q4  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this SWRI project, funded by SunShot, for the fourth quarter of fiscal year 2012.

380

asme turbo expo: Topics by E-print Network  

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

Summer Conference Mathematics Websites Summary: Proceedings of HT-FED2004 2004 ASME Heat TransferFluids Engineering Summer Conference Charlotte range of industrial...

Note: This page contains sample records for the topic "turbo aero tires" 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

On Collisions of Hash Functions Turbo SHA-2 Vlastimil Klima  

E-Print Network [OSTI]

+ W24 + 1 a[1] W31 + W30 + W29 + e[1] W27 + W26 + W25 + 2 a[2] a[1] W31 + W30 + e[2] e[1] W27 + W26 + 3 a[3] a[2] a[1] W31 + e[3] e[2] e[1] W27 + 4 a[4] a[3] a[2] a[1] e[4] e[3] e[2] e[1] 5 a[5] a[4] a

382

1 Copyright 2003 by ASME Proceedings ASME Turbo Expo 2003  

E-Print Network [OSTI]

-19, 2003, Atlanta, Ga., U.S.A. GT2003-38254 FLOW AND THERMAL FIELD MEASUREMENTS IN A COMBUSTOR SIMULATOR power output. Predicting the performance of a combustor is quite challenging, particularly to predicting reactions in a combustor, it is imperative that these turbulence levels can be accurately

Thole, Karen A.

383

Performance and reliability enhancement of turbo-pump labyrinth seals  

E-Print Network [OSTI]

Radial velocity distribution within an idealized original IP Seal cavity. 28 Pressure relative to cavity inlet value within an idealized original IP Seal cavity. Turbulence energy distribution within an 4. 4(a) 4. 4(b) 4. 5(a) 4. 5(b) 4, 6(B) 4... cavity. Radial velocity distribution within Seal 17 cavity Radial velocity distribution within Seal 2 cavity. . . 30 IP Seal cavity. . . . 31 33 34 . . 36 . . 37 . . 38 , , 39 . . 40 . . 41 . . 42 xs Figure 4. 9(a) Pressure relative...

Guidry, Michael James

1991-01-01T23:59:59.000Z

384

High compression ratio turbo gasoline engine operation using alcohol enhancement  

E-Print Network [OSTI]

Gasoline - ethanol blends were explored as a strategy to mitigate engine knock, a phenomena in spark ignition engine combustion when a portion of the end gas is compressed to the point of spontaneous auto-ignition. This ...

Lewis, Raymond (Raymond A.)

2013-01-01T23:59:59.000Z

385

Electric Turbo Compounding Technology Update | 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 Rank EERE:YearRound-UpHeat PumpRecord ofESPC ENABLE: ECM Summaryand Contact Information

386

Wilson TurboPower Inc | 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:SeadovCooperative JumpWilliamson County, Tennessee:Willowick,North Carolina:Texas:

387

Project Profile: Supercritical Carbon Dioxide Turbo-Expander and Heat  

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 | Department ofT ib l L d FNEPA/309DepartmentDepartmentPower Generation

388

EU Energy Voith Turbo JV | 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 Inspector GeneralDepartmentAUDIT REPORT Americium/CuriumSunwaysDatangGmbH Jump to:ENERCON

389

High Compression Ratio Turbo Gasoline Engine Operation Using...  

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

information * Project start date: 9012011 * Project end date: 1152015 (with no-cost extension) * Percent complete: 77% * Barriers addressed - Peak thermal efficiency...

390

Turbo King: Framework for Large-Scale Internet Delay Measurements  

E-Print Network [OSTI]

servers (which is called cache pollution) and requires large traffic overhead when deployed in large consuming half the bandwidth needed by King and reducing the impact of cache pollution by several orders building an all-to-all delay matrix between approximately 220, 000 BGP prefixes advertised in the Internet

Loguinov, Dmitri

391

High temperature performance of scrap tire rubber modified asphalt concrete  

SciTech Connect (OSTI)

Wheel track rutting tests on mixes modified with 30 mesh, 80 mesh, and very fine colloidal crumb rubber particles show that a very significant improvement in performance occurs with a reduction in the rubber particle size. The SHRP binder test for rutting, which was originally developed for homogeneous systems only, does not predict the performance improvement for smaller rubber particles. If these new scrap rubber binder systems are to be used in pavements then rutting tests on the asphalt-aggregate mixture should be conducted in order to accurately predict high temperature performance.

Coomarasamy, A. [Ministry of Transportation, Downsview, Ontario (Canada); Manolis, S.; Hesp, S. [Queen`s Univ., Kingston, Ontario (Canada)

1996-12-31T23:59:59.000Z

392

A Materials Approach to Fuel-Efficient Tires  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

393

An investigation of the use of tire rubber in asphalt  

E-Print Network [OSTI]

-rubber binder. The selected variables chosen are curing time, curing temperature, rubber content (weight percent), rubber particle size, base asphalt type, and carbonyl area. Results confirmed that the addition of rubber increased the viscosity of the asphalt...

Koo, Heamo Lee

1996-01-01T23:59:59.000Z

394

CORRELATION OF FAILURE TIRES FOR IODINE SCC OF ZIRCALOY  

E-Print Network [OSTI]

D. Cllbiocciotti, & Jones, "EPRI - NASA Cooperative P:rojon Corrosion Cracking", EPRI NP-717 (1978). Cubiocciotti,R.L. Jones and Zircaloy", EPRI NP-1329 (19SO). C. Syrett, "

Shann, S.

2013-01-01T23:59:59.000Z

395

System for Automatically Maintaining Pressure in a Commercial Truck Tire |  

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 Energy Strain Rate4SuperhardSuspectEngines |Impacts |Department of

396

Improving Vehicle Fuel Efficiency Through Tire Design, Materials, and  

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 Rank EERE:YearRound-UpHeatMulti-Dimensionalthe U.S. Improving Fan System Performance a PumpingReduced Weight

397

Alternative Fuels Data Center: Low Rolling Resistance Tires  

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 May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAreSmartWayElectricity FuelUse Knoxville

398

DEER 2007 Presentation  

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

Control - - +++ + - - DPF ++ ++ + + NOx Reduction Attributes - + + + + Advanced Single Turbo - - ++ + + + 2-Stage Turbo + Particulate Reduction - - - - Cost Performance - -...

399

AeroSys: Order (2010-CE-01/0201 and 2010-SE-0302) | Department...  

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

in commerce in the U.S. various models of air conditioners and air conditioning heat pumps that did not comport with the applicable energy conservation standards. In...

400

DOE Institutes Enforcement Action Against AeroSys, Inc. for Failure...  

Energy Savers [EERE]

provide DOE with information critical to determining that American consumers are buying products that deliver significant energy and cost savings in accord with DOE's...

Note: This page contains sample records for the topic "turbo aero tires" 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

E-Print Network 3.0 - aero radiometric measurements Sample Search...  

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

to predictions from a radiometric performance model... -made objects during a number of data measurement exercises. The high spatial resolution (--1 meter) and high... of SNR...

402

In Proceedings of SPIE AeroSense 2001. Robotic Technologies for Outdoor Industrial Vehicles  

E-Print Network [OSTI]

, and material handling employ a wide variety of mobile machines, including tractors, combines, Load-Haul-Dump vehicles, trucks, paving machines, fork trucks, and many more. Automation of these vehicles promises applications. The machines navigate about, performing a wide range of operations, including digging, hauling

Stentz, Tony

403

E-Print Network 3.0 - aero-derivative gas turbines Sample Search...  

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

Engineering 94 Reproducedwith pennissionfrom ElsevierPergamon Biomass and Bioenerg..' Vol: 10, :os 2-3, pp..149-l66, 1996 Summary: reserved 0961-9534(95)00069-0...

404

E-Print Network 3.0 - aero gas turbine Sample Search Results  

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

and analysis tool capable of analyzing floating platform concepts for offshore wind turbines. The new modeling... tool combines the computational methodologies used to analyze...

405

E-Print Network 3.0 - aero-elastic offshore wind Sample Search...  

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

6th Framework Programme Peter Hjuler Jensen, Ris National Laboratory, Summary: of wind turbines for future very large-scale applications, e.g. offshore wind farms of several...

406

Fluidic Control of a Turret Wake: Aerodynamic and Aero-Optical Effects  

E-Print Network [OSTI]

optical window are investigated at M = 0.3 and ReD = 4.46·106 (with additional measurements at M = 0 and hot-film measurements within the separated flow domain. In addition, the suppression of optical-mean-square = height of turret base = azimuthal angle of pressure ports = elevation angle of optical window s = flow

Jumper, Eric

407

E-Print Network 3.0 - aero airlines tegi Sample Search Results  

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

George Mason University, Center for Air Transportation Systems Research Collection: Energy Storage, Conversion and Utilization ; Engineering 3 Aerospace Administration and...

408

Experimental aero-acoustic assessment of swirling flows for drag applications  

E-Print Network [OSTI]

The need for quiet drag technologies stems from stricter requirements for and growing demand of low-noise aircraft. The research presented in this thesis regards the use of swirling exhaust flows capable of generating ...

Mobed, Darius Darayes

2007-01-01T23:59:59.000Z

409

Fluidic Control of a Turret Wake: Aerodynamic and Aero-Optical Effects  

E-Print Network [OSTI]

kinetic energy M = Mach number OPD = optical path difference OPDrms = root-mean-square of optical path; = azimuthal angle of pressure ports = elevation angle of optical aperture s = flow separation angle-based optical system must satisfy more demanding requirements in comparison to separation control over external

Gordeyev, Stanislav

410

The Airborne Aero-Optics Laboratory, AAOL Eric J. Jumpera1  

E-Print Network [OSTI]

and around an aircraft has on a laser projected or received by an optical system. The background also the usefulness of airborne high-energy lasers [1]. The ALL used a carbon-dioxide, gas- dynamic laser; but, the laser's long wavelength (10.6 m) limited its range and intensity on target. From a diffraction

Gordeyev, Stanislav

411

DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and  

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

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 May Jun Jul(Summary) "of EnergyEnergyENERGYWomenthe HouseStudents2.2at MultipleorderNuclearThis fact sheetHeat Pump Models Shown

412

Department of Energy Announces Testing for AeroSys, Inc. Products to Ensure  

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

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 May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA, GA - U.S.Development Projects |Reserve | Department

413

AeroSys: Noncompliance Determination (2010-SE-0302) | Department of Energy  

Office of Environmental Management (EM)

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 May Jun Jul(Summary) "of EnergyEnergy Cooperation |South ValleyASGovLtr.pdfAboutSheet,

414

AeroSysNNC_3-25.pdf | Department of Energy  

Office of Environmental Management (EM)

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 May Jun Jul(Summary) "of EnergyEnergy Cooperation |South ValleyASGovLtr.pdfAboutSheet,Proposed Penalty (2011-SCE-1624)

415

DOE Institutes Enforcement Action Against AeroSys, Inc. for Failure to  

Energy Savers [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 Deliciouscritical_materials_workshop_presentations.pdf MoreProgram |DOE Exercises OptionDOE Hydrogen and(Notice

416

DOE Orders AeroSys to Halt Distribution of Inefficient Air Conditioner and  

Energy Savers [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 Deliciouscritical_materials_workshop_presentations.pdf MoreProgram |DOEInfrastructure Working420.1B FACILITYHeat

417

Standard practice for radiographic examination of advanced aero and turbine materials and components  

E-Print Network [OSTI]

1.1 This practice establishes the minimum requirements for radiographic examination of metallic and nonmetallic materials and components used in designated applications such as gas turbine engines and flight structures. 1.2 The requirements in this practice are intended to control the radiographic process to ensure the quality of radiographic images produced for use in designated applications such as gas turbine engines and flight structures; this practice is not intended to establish acceptance criteria for material or components. When examination is performed in accordance with this practice, engineering drawings, specifications or other applicable documents shall indicate the acceptance criteria. 1.3 All areas of this practice may be open to agreement between the cognizant engineering organization and the supplier, or specific direction from the cognizant engineering organization. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the respons...

American Society for Testing and Materials. Philadelphia

2009-01-01T23:59:59.000Z

418

Department of Energy Subpoenas Compliance Data from AeroSys, Inc. |  

Energy Savers [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 Inspector General Office of Audit Services Audit ReportNextConditional LoanEnergy

419

Boosting Small Engines to High Performance ? Boosting Systems...  

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

displacement Similar amount of air per cycle air density Single stage turbo with limited full load speed range 2-stage turbo or super-turbo enables larger...

420

The BMW Approach to Tier2 Bin5  

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

BMW Group BMW Diesel. Wolfgang Mattes DEER 2007 2-Stage Turbocharger (Variable Twin Turbo). Page 10 Engine Small Turbo Big Turbo Intercooler Compressor- Bypass Air Exhaust...

Note: This page contains sample records for the topic "turbo aero tires" 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

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...

422

Advanced Propulsion Technology Strategy  

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

Alternative Sources) Hydrogen Time ADVANCED PROPULSION TECHNOLOGY STRATEGY DOWNSIZED TURBO GAS ENGINE CHEVROLET CRUZE 1.4L TURBO ECOTEC Downsized SIDI Turbo Boosting HCCI -...

423

Proceedings of ASME Turbo Expo 2010 June 14-18, 2010, Glasgow, Scotland  

E-Print Network [OSTI]

, but also the most carbon intensive. Various gasification technologies enable the conversion of coal fuels (e.g. hydrogen, natural gas, and liquid transportation fuels). Gasification also provides some costly using integrated gasification combined cycles (IGCC) instead of standard pulverized coal (PC

424

Performance and Emission Characteristics of an Aircraft Turbo Diesel Engine using JET-A Fuel  

E-Print Network [OSTI]

Protection Agency (EPA)............................................................ 10 1.4.3 Emission Technology .................................................................................................... 11 1.4.3.1 Catalytic Converter... Actual e Exit f Fuel inf Free Stream o Point Pr Prop T Thrust x Compound Family viii Abbreviations Definition AFR Air Fuel Ratio BHP Brake Horsepower CED Compact Engine Display CFR Code of Federal Regulations CReSIS Center for Remote...

Underwood, Sean Christopher

2008-05-05T23:59:59.000Z

425

Proceedings of ASME Turbo Expo 2013 June 3-7, 2013, San Antonio, Texas, USA  

E-Print Network [OSTI]

scheduling controller for a gas turbine engine that drives a variable pitch propeller. A stability proof-96012 GAIN SCHEDULING CONTROL OF GAS TURBINE ENGINES: STABILITY BY COMPUTING A SINGLE QUADRATIC LYAPUNOV. This approach guarantees stability of the closed- loop gas turbine engine system. Simulation results show the de

Shamma, Jeff S.

426

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.

427

1 Copyright 2004 by ASME Proceedings of ASME Turbo Expo 2004  

E-Print Network [OSTI]

become an important issue for the gas turbine industry as decreasing component temperatures increase the life of the airfoils. To decrease component temperatures in the turbine section of a gas turbine engine TURBINE BLADE COOLING A. Graham, E. Sewall and K. A. Thole Mechanical Engineering Department Virginia

Thole, Karen A.

428

Proceedings of GT2005 ASME Turbo Expo 2005: Power for Land, Sea and Air  

E-Print Network [OSTI]

to the predictions from GRI Mech 3.0 than from the H2/CO mechanism. [Keywords: Syngas, Laminar flame speed, CO2 conversion efficiencies and low pollution emissions. Synthetic gas (syngas) fuels derived from coal are particularly promising in this regard. Syngas fuels are typically composed primarily of H2 and CO, and may also

Seitzman, Jerry M.

429

1 Copyright 2003 by ASME Proceedings of ASME Turbo Expo 2003  

E-Print Network [OSTI]

transfer is to use cooler fluid from the compressor, that exits from relatively large dirt purge holes to extract dirt from the coolant flow through centrifugal forces such that these dirt particles do not block: it allows for dirt ingested by the compressor to be exhausted into the turbine without clogging film cooling

Thole, Karen A.

430

A new high performance turbo encoder scheme for bandwidth efficient Dan Raphaeli and Assaf Gurevitz  

E-Print Network [OSTI]

shaping method follows the technique proposed by Gallager in his 1968 book on information theory [2 probability density functions as Q(Y |cj) = 1 2 e- 1 22 (Y -cj )2 (1) The capacity of the discrete input Density Parity Check (LDPC) codes. The nonequiprobable letters are obtained by using a table that maps b

Raphaeli, Dan

431

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

SciTech Connect (OSTI)

The objective of this Direct Surge Control project was to develop a new internal method to avoid surge of pipeline compressors. This method will safely expand the range and flexibility of compressor operations, while minimizing wasteful recycle flow at the lower end of the operating envelope. The approach is to sense the onset of surge with a probe that directly measures re-circulation at the impeller inlet. The signals from the probe are used by a controller to allow operation at low flow conditions without resorting to a predictive method requiring excessive margin to activate a recycle valve. The sensor developed and demonstrated during this project was a simple, rugged, and sensitive drag probe. Experiments conducted in a laboratory compressor clearly showed the effectiveness of the technique. Subsequent field demonstrations indicated that the increase in range without the need to recycle flow was on the order of 19% to 25%. The cost benefit of applying the direct surge control technology appears to be as much as $120 per hour per compressor for operation without the current level of recycle flow. This could amount to approximately $85 million per year for the U.S. Natural Gas Transmission industry, if direct surge control systems are applied to most pipeline centrifugal compressors.

Robert J. McKee; Shane P. Siebenaler; Danny M. Deffenbaugh

2005-02-25T23:59:59.000Z

432

Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers (Fact Sheet)  

SciTech Connect (OSTI)

Southwest Research Institute is one of the 2012 SunShot CSP R&D awardees for their advanced power cycles. This fact sheet explains the motivation, description, and impact of the project.

Not Available

2012-09-01T23:59:59.000Z

433

Vehicle Technologies Office Merit Review 2014: High Compression Ratio Turbo Gasoline Engine Operation Using Alcohol Enhancement  

Broader source: Energy.gov [DOE]

Presentation given by Massachusetts Institute of Technology at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high...

434

Develop improved battery charger (Turbo-Z Battery Charging System). Final report  

SciTech Connect (OSTI)

The output of this project was a flexible control board. The control board can be used to control a variety of rapid battery chargers. The control module will reduce development cost of rapid battery charging hardware. In addition, PEPCO's proprietary battery charging software have been pre-programmed into the control microprocessor. This product is being applied to the proprietary capacitive charging system now under development.

NONE

1999-09-01T23:59:59.000Z

435

Turbo-alternator-compressor design for supercritical high density working fluids  

SciTech Connect (OSTI)

Techniques for generating power are provided. Such techniques involve a thermodynamic system including a housing, a turbine positioned in a turbine cavity of the housing, a compressor positioned in a compressor cavity of the housing, and an alternator positioned in a rotor cavity between the turbine and compressor cavities. The compressor has a high-pressure face facing an inlet of the compressor cavity and a low-pressure face on an opposite side thereof. The alternator has a rotor shaft operatively connected to the turbine and compressor, and is supported in the housing by bearings. Ridges extending from the low-pressure face of the compressor may be provided for balancing thrust across the compressor. Seals may be positioned about the alternator for selectively leaking fluid into the rotor cavity to reduce the temperature therein.

Wright, Steven A.; Fuller, Robert L.

2013-03-19T23:59:59.000Z

436

Controlling the level of the ideal invariant fluxes for MHD turbulence using TURBO spectral solver  

E-Print Network [OSTI]

The ideal invariants present in the formalism of magnetohydrodynamics (MHD), i.e. global quantities that are conserved in the absence of sources and dissipative effects, play an important role in various theoretical and numerical studies of MHD turbulence. The fluxes of these ideal invariants represent separate channels that transfer the information across different scales in a turbulent system. Once a statistically stationary state of turbulence is reached, the amount of any ideal invariant quantity introduced in the system by a forcing mechanism equals the amount of the same quantity removed by the dissipative effects from the system. For highly developed turbulence, these two mechanisms act predominantly at different scales that are largely separated. Since the ideal invariant quantities cascade between scales, a constant flux is generated with great implication on the state of the system. Numerically, controlling the ideal invariant fluxes levels for a turbulent MHD system is important for the analysis of...

Teaca, B; Knaepen, B; Carati, D

2011-01-01T23:59:59.000Z

437

Proceedings of GT2005 ASME Turbo Expo 2005: Power for Land, Sea and Air  

E-Print Network [OSTI]

-Tahoe, Nevada, USA DRAFT GT2005-68284 NUMERICAL MODELING OF FLOW AND THERMAL PATTERNS WITHIN A COMBUSTOR approaching the turbine. The flow field exiting the combustor has highly non-uniform pressure and temperature a non-reactive full scale annular combustor simulator to the facility to study these effects

Thole, Karen A.

438

Proceedings of GT2009 ASME Turbo Expo 2009: Power for Land, Sea and Air  

E-Print Network [OSTI]

, United States GT2009-60168 EVALUATING A THREE-DIMENSIONAL SLOT DESIGN FOR THE COMBUSTOR-TURBINE INTERFACE bypass flow emerging from the combustor-turbine junc- tion may be effectively harnessed for cooling geometry at the combustor- turbine interface. The downstream edge of the slot was scal- loped using

Thole, Karen A.

439

Proceedings ASME Turbo Expo 2005 Power for Land, Sea, and Air  

E-Print Network [OSTI]

2005-68704 EXPERIMENTAL CHARACTERIZATION OF FILM-COOLING EFFECTIVENESS NEAR COMBUSTOR DILUTION HOLES J ABSTRACT Cooling combustor chambers for gas turbine engines is challenging, given the complex flow-momentum dilution jets required to mix the fuel with film cooling jets that are intended to cool the combustor walls

Thole, Karen A.

440

1 Copyright 2003 by ASME Proceedings of ASME TURBO EXPO 2003  

E-Print Network [OSTI]

slot that simulates leakage between the combustor and turbine sections. Results indicate reasonable, are dictated by the geometrical features of the vane itself, the vane-endwall juncture geometry, and combustor exit conditions. Most combustor-turbine junctions have slots through which coolant leaks into the main

Thole, Karen A.

Note: This page contains sample records for the topic "turbo aero tires" 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

Proceedings of GT2006 ASME Turbo Expo 2006: Power for Land, Sea and Air  

E-Print Network [OSTI]

, Spain 1 Copyright © ASME 2006 GT2006-91338 STAGNATION-POINT REVERSE-FLOW COMBUSTOR PERFORMANCE-Point Reverse-Flow (SPRF) Combustor when burning liquid fuels (Jet-A and heptane). This study has been with state of the art combustors, in which the reactants and products enter and leave the combustor through

Seitzman, Jerry M.

442

1 Copyright 2012 by ASME Proceedings of ASME Turbo Expo 2012  

E-Print Network [OSTI]

cycles for three interesting coal fired, gasification based, plants with CO2 capture: a Fischer Tropsch synthesis processes with once-through reactor (CTL-OT-CCS), and an integrated gasification combined cycle systems typically comprise a Heat Recovery Steam Cycle (HRSC) fed with waste heat from gas turbines and

443

MHK Technologies/Turbo Ocean Power Generator MadaTech 17 | Open Energy  

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 revision hasInformation Earth's Heat JumpIncMAKGalway Bay IEOWC <SurgeWECSailsOWC.png Technology

444

Two-Stroke Uniflow Turbo-Compound IC Engine | 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 EnergyTheTwo New Energy Storage Safety Reports NowGasolineUniflow

445

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.

446

Proceedings of ASME Turbo Expo 2012 June 11-15, 2012, Copenhagen, Denmark  

E-Print Network [OSTI]

plane, x/c = 1.025. Abbreviations N Turbine nozzle guide vane. R Turbine blade. SST Shear stress Flow Turbine Research Facility (AF- TRF) having a diameter of 91.66cm. For the experimental mea- surement comparison, a reference Flat Insert is installed in the nozzle guide vane (NGV) passage. It has

Camci, Cengiz

447

Proceedings of ASME Turbo Expo 2013 June 3-7, 2013, San Antonio, Texas, USA  

E-Print Network [OSTI]

nozzle guide vane. NGV Nozzle guide vane. R Turbine blade. SST Shear stress transport. TKE Turbulence-95843 INFLUENCE OF LEADING EDGE FILLET AND NONAXISYMMETRIC CONTOURED ENDWALL ON TURBINE NGV EXIT FLOW STRUCTURE. The experiments are carried out in the Axial Flow Turbine Research Facility (AFTRF) having a di- ameter of 91.66cm

Camci, Cengiz

448

Proceedings of ASME Turbo Expo 2012 June 11-15, 2012, Copenhagen, Denmark  

E-Print Network [OSTI]

-68325 REDUCING THE DEMAND OF COOLANT AT THE SIDEWALL OF A HIGH PRESSURE TURBINE CASCADE BY MEANS OF SLOT WIDTH MODULATION Michael Woopen Institute of Propulsion Technology Turbine Department German Aerospace Center (DLR Turbine Department German Aerospace Center (DLR) G¨ottingen, Germany Peter-Anton Gieß Institute

449

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

450

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

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 Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent Company Agrees to CooperateJapan |ScarcityDesert

451

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

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 Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent Company Agrees toDepartment of EnergyDepartment

452

Electric Turbo Compounding...A Technology Who's Time Has Come | Department  

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 Rank EERE:YearRound-UpHeat PumpRecord ofESPC ENABLE: ECM Summaryand Contact Informationof Energy

453

Retrofit and Testing of a Pre-Turbo, Diesel Oxidation Catalyst on a Tier 0,  

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 | Department ofT ib l LPROJECTS IN RENEWABLEOperated in Steady-State AchievedDepartment

454

Towards Near Real-Time Availability With Enhanced Accuracy Turbo-ARSCL Project!  

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 Layered NbS2Topo II: An EnzymePersonal Computerso w

455

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

E-Print Network [OSTI]

of gas turbine hot section components. This paper investigates manufacturing variability and its effect on first-stage turbine blades through the use of a parametric CAD model, automated CAD regeneration, Canada GT2007-28009 TOLERANCED DESIGNS OF COOLED TURBINE BLADES THROUGH PROBABILISTIC THERMAL ANALYSIS

Peraire, Jaime

456

1 Copyright 2012 by ASME Proceedings of ASME Turbo Expo 2012  

E-Print Network [OSTI]

to a pressurized system with a more `sophisticated' turbine cycle, replacing the micro-turbine, to achieve such high efficiency. More recently, a 2011 DOE- NETL report [4] on NG SOFC plants capturing CO2 calculated steam and CO2, from which the latter is separated after steam condensation and water knock

457

Technology Development for High Efficiency Clean Diesel Engines...  

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

-Enhanced PCCI - Mixed Mode Combustion Variable Valve Actuation Variable Intake Swirl Turbo Technology Electrically Driven Components Aftertreatment Turbo Technology...

458

WAVE TRANSMISSION AND MOORING-FORCE CHARACTERISTICS OF PIPE-TIRE FLOATING BREAKWATERS  

E-Print Network [OSTI]

Facility and Instrumentation a. Wave Tank . b. Have Gauge c.Procedures Experimental Results Wave~Transmission Data Page112 Appendix C - Detailed Wave-Transmission Diagrams . 121

Harms, Volker W.

2013-01-01T23:59:59.000Z

459

Vehicle Technologies Office Merit Review 2014: System for Automatically Maintaining Pressure in a Commercial Truck Tire  

Broader source: Energy.gov [DOE]

Presentation given by Goodyear at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about a system for automatically...

460

Improving Vehicle Fuel Efficiency Through Tire Design, Materials, and Reduced Weight  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

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


461

Time-dependent thermo-mechanical properties of aircraft tire material  

E-Print Network [OSTI]

strain/high frequency, and large strain/low frequency tests conducted at temperatures of 23o C, 50o C, and 78o C. The fast Fourier transfcam (FFT) algorithm is utilized to extract the harmonic components of the strain input and the resulting stress... response from the test data. The significant harmonic components of stress are presented as functions of dynamic strain amplitude. Dependence of these components on the test frequency and temperature is studietL ACKNOWLEDGEMENTS The author wishes...

Hanson, Robert Ray

1988-01-01T23:59:59.000Z

462

Oscillation annealing and driver/tire load torque estimation in Electric Power Steering Systems  

E-Print Network [OSTI]

design an optimal control to reject oscillations of the steering column, then we device a new observer with a very good precision and very little phase lag. Mechanical Model Tyre/Road Friction Model Reference

Paris-Sud XI, Université de

463

Goodyear Testing Self-Inflating Tire Systems in U.S. Trucking Fleets |  

Office of Environmental Management (EM)

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 May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel Cell VehicleEnergy (5Temperatures |OurGoingGoodDepartment of

464

54.5 MPG and Beyond: New Tire Technology Pumps Up Fuel Savings | Department  

Office of Environmental Management (EM)

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 May Jun Jul(Summary) "of EnergyEnergy Cooperation |South Valley ResponsibleSubmissionof Energy 5 QuestionsDepartment ofof

465

Fact #763: January 21, 2013 Eighty-four Percent of Scrapped Tires Are  

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 Rank EERE:YearRound-UpHeat PumpRecord ofESPCofConstructionofFY 20112:of Energy 3:Plug-in Vehicles

466

Fact #826: June 23, 2014 The Effect of Tire Pressure on Fuel Economy |  

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 Rank EERE:YearRound-UpHeat PumpRecord ofESPCofConstructionofFYOxide Emission Standards, Model Years

467

A Materials Approach to Fuel-Efficient Tires | 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 Rank EERE:YearRound-Up from theDepartment(October-DecemberBased onIn-CylinderContinuous Processing ofofA

468

Goodyear Tire Plant Gains Traction on Energy Savings After Completing Save  

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 Rank EERE:Year in3.pdf Flash2006-53.pdf0.pdfCostAnalysis GeothermalEnergyDepartmentofNetworksEnergy Now

469

EERE Energy Impacts: Self-Inflating Tires Could Save You Money on Gas,  

Office of Environmental Management (EM)

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 May Jun Jul(Summary) "of Energy Power SystemsResources DOE ZeroThreeEnergy Driving Green:D0Oregon SchoolEmployment

470

On bicycle tire tracks geometry, hatchet planimeter, Menzin's conjecture and oscillation of unicycle tracks  

E-Print Network [OSTI]

The model of a bicycle is a unit segment AB that can move in the plane so that it remains tangent to the trajectory of point A (the rear wheel is fixed on the bicycle frame); the same model describes the hatchet planimeter. The trajectory of the front wheel and the initial position of the bicycle uniquely determine its motion and its terminal position; the monodromy map sending the initial position to the terminal one arises. According to R. Foote's theorem, this mapping of a circle to a circle is a Moebius transformation. We extend this result to multi-dimensional setting. Moebius transformations belong to one of the three types: elliptic, parabolic and hyperbolic. We prove a 100 years old Menzin's conjecture: if the front wheel track is an oval with area at least pi then the respective monodromy is hyperbolic. We also study bicycle motions introduced by D. Finn in which the rear wheel follows the track of the front wheel. Such a ''unicycle" track becomes more and more oscillatory in forward direction. We pr...

Levi, M

2008-01-01T23:59:59.000Z

471

Florida Center for Advanced Aero-Propulsion (FCAAP) Annual Technical Symposium 2010 Three-dimensional Modeling of Microscale Plasma Actuators  

E-Print Network [OSTI]

. Thus the idea is to minimize the momentum and energy loss by reducing the interelectrode gap to Debye. Such actuators are plasma driven and have been shown to generate large electric field. Our research predicts gas at microscale. Park's dissociation model is utilized to couple the vibration and dissociation

Roy, Subrata

472

Intercomparison and Evaluation of Global Aerosol Microphysical Properties among AeroCom Models of a Range of Complexity  

SciTech Connect (OSTI)

Many of the next generation of global climate models will include aerosol schemes which explicitly simulate the microphysical processes that determine the particle size distribution. These models enable aerosol optical properties and cloud condensation nuclei (CCN) concentrations to be determined by fundamental aerosol processes, which should lead to a more physically based simulation of aerosol direct and indirect radiative forcings. This study examines the global variation in particle size distribution simulated by twelve global aerosol microphysics models to quantify model diversity and to identify any common biases against observations. Evaluation against size distribution measurements from a new European network of aerosol supersites shows that the mean model agrees quite well with the observations at many sites on the annual mean, but there are some seasonal biases common to many sites. In particular, at many of these European sites, the accumulation mode number concentration is biased low during winter and Aitken mode concentrations tend to be overestimated in winter and underestimated in summer. At high northern latitudes, the models strongly underpredict Aitken and accumulation particle concentrations compared to the measurements, consistent with previous studies that have highlighted the poor performance of global aerosol models in the Arctic. In the marine boundary layer, the models capture the observed meridional variation in the size distribution, which is dominated by the Aitken mode at high latitudes, with an increasing concentration of accumulation particles with decreasing latitude. Considering vertical profiles, the models reproduce the observed peak in total particle concentrations in the upper troposphere due to new particle formation, although modelled peak concentrations tend to be biased high over Europe. Overall, the results suggest that most global aerosol microphysics models simulate the global variation of the particle size distribution with a good degree of skill, but some models are in poor agreement with the observations. Further work is required to better constrain size-resolved primary and secondary particle number sources, and an improved understanding of nucleation and growth (e.g. the role of nitrate and secondary organics) will improve the fidelity of simulated particle size distributions.

Mann, G. W.; Carslaw, K. S.; Reddington, C. L.; Pringle, K. J.; Schulz, M.; Asmi, A.; Spracklen, D. V.; Ridley, D. A.; Woodhouse, M. T.; Lee, L. A.; Zhang, Kai; Ghan, Steven J.; Easter, Richard C.; Liu, Xiaohong; Stier, P.; Lee, Y. H.; Adams, P. J.; Tost, H.; Lelieveld, J.; Bauer, S.; Tsigaridis, Kostas; van Noije, T.; Strunk, A.; Vignati, E.; Bellouin, N.; Dalvi, M.; Johnson, C. E.; Bergman, T.; Kokkola, H.; Von Salzen, Knut; Yu, Fangqun; Luo, Gan; Petzold, A.; Heintzenberg, J.; Clarke, A. D.; Ogren, J. A.; Gras, J.; Baltensperger, Urs; Kaminski, U.; Jennings, S. G.; O'Dowd, C. D.; Harrison, R. M.; Beddows, D. C.; Kulmala, M.; Viisanen, Y.; Ulevicius, V.; Mihalopoulos, Nikos; Zdimal, V.; Fiebig, M.; Hansson, H. C.; Swietlicki, E.; Henzing, J. S.

2014-05-13T23:59:59.000Z

473

*Corresponding author. Fax: #33-5-613-32790. E-mail address: crav@aero.obs-mip.fr (V. Crassier).  

E-Print Network [OSTI]

, Steven Businger , Christian Gerbig , Frank Raes , Jochen Rudolph Laboratoire d'Ae&rologie, UMR CNRS Marine Environmental Laboratory, NOAA, Seattle, USA Department of Meteorology, University of Hawai'i

474

Modelled Black Carbon Radiative Forcing and Atmospheric Lifetime in AeroCom Phase II Constrained by Aircraft Observations  

SciTech Connect (OSTI)

Black carbon (BC) aerosols absorb solar radiation, and are generally held to exacerbate global warming through exerting a positive radiative forcing1. However, the total contribution of BC to the ongoing changes in global climate is presently under debate2-8. Both anthropogenic BC emissions and the resulting spatial and temporal distribution of BC concentration are highly uncertain2,9. In particular, long range transport and processes affecting BC atmospheric lifetime are poorly understood, leading to large estimated uncertainty in BC concentration at high altitudes and far from emission sources10. These uncertainties limit our ability to quantify both the historical, present and future anthropogenic climate impact of BC. Here we compare vertical profiles of BC concentration from four recent aircraft measurement campaigns with 13 state of the art aerosol models, and show that recent assessments may have overestimated present day BC radiative forcing. Further, an atmospheric lifetime of BC of less than 5 days is shown to be essential for reproducing observations in transport dominated remote regions. Adjusting model results to measurements in remote regions, and at high altitudes, leads to a 25% reduction in the multi-model median direct BC forcing from fossil fuel and biofuel burning over the industrial era.

Samset, B. H.; Myhre, G.; Herber, Andreas; Kondo, Yutaka; Li, Shao-Meng; Moteki, N.; Koike, Makoto; Oshima, N.; Schwarz, Joshua P.; Balkanski, Y.; Bauer, S.; Bellouin, N.; Berntsen, T.; Bian, Huisheng; Chin, M.; Diehl, Thomas; Easter, Richard C.; Ghan, Steven J.; Iversen, T.; Kirkevag, A.; Lamarque, Jean-Francois; Lin, Guang; Liu, Xiaohong; Penner, Joyce E.; Schulz, M.; Seland, O.; Skeie, R. B.; Stier, P.; Takemura, T.; Tsigaridis, Kostas; Zhang, Kai

2014-11-27T23:59:59.000Z

475

Processing of Ni-based aero engine components with repetitively Q-switched Nd:YAG lasers  

SciTech Connect (OSTI)

Aircraft engine industry uses free running high power Nd:YAG lasers for drilling cooling holes into nickel base alloy turbine components. A cw-pumped, Q-switched, high beam quality laser system with 400W laser power is presented. The laser is used for trepan drilling of 1.6mm Hastelloy X sheets and ceramic coated combustion chamber tubes of the same metal. Cylindrical shape, uniformity, and reproducibility are achieved with a trepan-like drilling setup. The heat load of the workpiece as well as the process time is considerably decreased by employing high-repetition Q-switched lasers.

Bostanjoglo, G.; Beck, T. [Laser- und Medizin-Technologie Berlin gGmbH (Germany); Sarady, I. [Luleaa Univ. of Technology (Sweden). Div. of Metal Working; Weber, H. [Technischen Univ. Berlin (Germany). Optisches Institut

1996-12-31T23:59:59.000Z

476

Intercomparison and evaluation of global aerosol microphysical properties among AeroCom models of a range of complexity  

E-Print Network [OSTI]

Many of the next generation of global climate models will include aerosol schemes which explicitly simulate the microphysical processes that determine the particle size distribution. These models enable aerosol optical ...

Ridley, David Andrew

477

DOE Issues Notice of Proposed Rulemaking to Improve Energy Efficiency...  

Energy Savers [EERE]

DOE Institutes Enforcement Action Against AeroSys, Inc. for Failure to Certify Air Conditioners and Heat Pumps Department of Energy Announces Testing for AeroSys, Inc....

478

Study on Off-Design Steady State Performances of Helium Gas Turbo-compressor for HTGR-GT  

SciTech Connect (OSTI)

The high temperature gas-cooled reactor (HTGR) coupled with direct gas turbine cycle is a promising concept in the future of nuclear power development. Both helium gas turbine and compressor are key components in the cycle. Under normal conditions, the mode of power adjustment is to control total helium mass in the primary loop using gas storage vessels. Meanwhile, thermal power of reactor core is regulated. This article analyzes off-design performances of helium gas turbine and compressors for high temperature gas-cooled reactor with gas turbine cycle (HTGR-GT) at steady state level of electric power adjustment. Moreover, performances of the cycle were simply discussed. Results show that the expansion ratio of turbine decreases as electric power reduces but the compression ratios of compressors increase, efficiencies of both turbine and compressors decrease to some extent. Thermal power does not vary consistently with electric power, the difference between these two powers increases as electric power reduces. As a result of much thermal energy dissipated in the temperature modulator set at core inlet, thermal efficiency of the cycle has a widely reduction under partial load conditions. (authors)

Qisen Ren; Xiaoyong Yang; Zhiyong Huang; Jie Wang [Tsinghua University, Beijing, 100084 (China)

2006-07-01T23:59:59.000Z

479

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

480

1 Copyright 2010 by ASME Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air  

E-Print Network [OSTI]

above material melting limits. Turbine components must be cooled to withstand mechanical stresses motivation to design gas turbines capable of burning alternative fuels such as coal derived synthesis gas matter in the fuel and air can deposit on turbine hardware reducing the effectiveness of film cooling

Thole, Karen A.

Note: This page contains sample records for the topic "turbo aero tires" 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

Proceedings of ASME TURBO EXPO 2010: Power for Land, Sea & Air June 14-18, 2010, Glasgow, GB  

E-Print Network [OSTI]

GT2010-22627 DRAFT NUMERICAL BENCHMARK OF TURBULENCE MODELING IN GAS TURBINE ROTOR-STATOR SYSTEM and performance of gas turbine en- gines. The selection of a suitable turbulence model for the study of rotor of operating con- ditions. A numerical benchmark of turbulence models is indeed proposed in the case of rotor

Boyer, Edmond

482

Fuel Effects on a Low-Swirl Injector for Lean Premixed Gas Turbines  

E-Print Network [OSTI]

D. Littlejohn, ASME Turbo Expo 2006: Power for Land, Sea andand T. Lieuwen, ASME Turbo Expo 2005: Power for Land Sea andK. O. Smith, ASME Turbo Expo 2006: Power for Land Sea and

Littlejohn, David

2008-01-01T23:59:59.000Z

483

Diesel Technology - Challenges & Opportunities for North America  

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

Combustion Control ECU ECU ECU Fuel Injectors Fuel Fuel Injectors Injectors EGR EGR EGR Turbo Turbo Turbo 6.6L V-8 6.6L V-8 Cylinder Pressure Sensor Cylinder Pressure Sensor NO X...

484

Soft-decision decoding of Reed-Muller codes: Recursive lists  

E-Print Network [OSTI]

coding and decoding : Turbo-codes,” in Proc. Int. Conf.Interleaver design for turbo codes,” IEEE J. Sel. AreasInterleavers for turbo codes using permu- tation polynomials

Dumer, I; Shabunov, K

2006-01-01T23:59:59.000Z

485

An investigation of the thermal degradation mechanisms of a waste tire through chemical analysis including hydrocarbons, benzene derivatives, and Polycyclic  

E-Print Network [OSTI]

, such as gasification and oxy-fuel combustion. Considerable study has been done investigating the overall gasification has been focused on pyrolysis/gasification and combustion at various oxygen concentrations

486

90 BULLETIN ` OF THE UNITED STATES FISH COMMISSION. 31.-EXPERIMENTAL HYGIENE-OBRERVATIONB ON TIRE R E D  

E-Print Network [OSTI]

by the formation in articles of food of w poisonous alkaloid. Briegcr(1584-1885), who has * "HygiBne Exp in preserving articles of food, parasites appear iii greater or less quan- tity ; a certain proportion of salt f of poisoning from codfish which liatl become changed without turning ret1 or by turning red. Tlie cases

487

Uncovering and avoiding failure modes in driveline and tire/wheel NVH using a computational meta-model  

E-Print Network [OSTI]

The automotive industry has undergone significant changes in recent years with increased competition and the introduction of new manufacturers into the market. With this changing market, a more efficient approach to Noise ...

Braunwart, Paul R

2007-01-01T23:59:59.000Z

488

EFFECT OF COMBUSTOR INLET GEOMETRY ON ACOUSTIC SIGNATURE AND FLOW FIELD BEHAVIOUR OF THE LOW SWIRL INJECTOR  

E-Print Network [OSTI]

and Stability," ASME Turbo Expo 2006: Power for Land, SeaProceedings of the ASME Turbo Expo 2010: Power for Land, Sea

Therkelsen, Peter L.

2010-01-01T23:59:59.000Z

489

Numerical and experimental studies of ethanol flames and autoignition theory for higher alkanes  

E-Print Network [OSTI]

ethanol flames”, ASME TURBO EXPO 2006: Power for Land, Seaof GT2006, ASME Turbo Expo 2006: Power for Land, Sea and

Saxena, Priyank

2007-01-01T23:59:59.000Z

490

CX-010561: Categorical Exclusion Determination | Department of...  

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

CX-010561: Categorical Exclusion Determination Pratt and Whitney Rocketdyne - Turbo-POx For Ultra-Low Cost Gasoline and Rocket Engine Derived High Efficiency Turbo...

491

Optimization of Direct-Injection H2 Combustion Engine Performance...  

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

Engine friction Values derived from measurement on multi-cylinder engine Turbo-charger performance Derived from results of turbo-charged multi-cylinder hydrogen...

492

U.S. Department of Energy Categorical Exclusion Detennination...  

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

Detennination Form Submit by E-mail Proposed Action Title: Pratt & Whitney Rocketdyne - Turbo-POx For Ultra-Low Cost Gasoline & Rocket Engine Derived High Efficiency Turbo-...

493

Looking From A Hilltop: Automotive Propulsion System Technology...  

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

Valve Lift, Active Fuel Management Spark Ignition Direct Injection Downsized SIDI Turbo Boosting Advanced Combustion 6 DOWNSIZED TURBO GASOLINE ENGINE Diesel Particulate...

494

Low-Temperature Combustion Demonstrator for High-Efficiency Clean...  

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

power density - Improved vehicle cooling system (low temperature radiator) - Two stage turbo system - Increased cylinder pressure capability Transient response - Two stage turbo -...

495

Vehicle Technologies Office Merit Review 2014: High Compression...  

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

High Compression Ratio Turbo Gasoline Engine Operation Using Alcohol Enhancement Vehicle Technologies Office Merit Review 2014: High Compression Ratio Turbo Gasoline Engine...

496

Development and Demonstration of a Fuel-Efficient HD Engine  

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

Turbocompounding Rankine Cycle Low Friction components Lube system Cooling system VVA + turbo match VVA Turbo optimization 2900bar capability Comb match Increased PCP Optimum...

497

Nordisk AeroForm ApS CVR nr. 14 83 87 75 Flvigvej 8, Vile ApS nr. 19 54 18  

E-Print Network [OSTI]

vingeleverandører: LM Glasfiber A/S, Vestas Windsystems A/S og Taywood Aerolaminates UK. Oparbejdningen af disse er Laboratoriet for Energiteknik. Vi takker for velvillig hjælp med fremskaffelse af prøveemner fra LM Glasfiber A. For vindmøllerne udgør glasfiber-vingerne imidlertid et specielt uløst problem. Fremtidig lovgivning såvel

498

atomically flat gold: Topics by E-print Network  

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

Flat(Tire1) Intact(Tire1) StartFinish Inflate(Tire1 Starner, Thad E. 147 Local and global instabilities in nanosize rectangular prismatic gold specimens R.C. Batra *, A.A....

499

Social Justice Feminism  

E-Print Network [OSTI]

decision in Ledbetter v. Goodyear Tire and Rubber Company,v. Carhart, Ledbetter v. Goodyear Tire & Rubber Company,"334. Ledbetter v. Goodyear Tire and Rubber Co. , 127 S. Ct.

Kalsem, Kristin; Williams, Verna L.

2010-01-01T23:59:59.000Z

500

applied vehicle technology: Topics by E-print Network  

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

a controlling system not monitoring system to maintain the tire pressure as inflation pressure recommended by the tire company. B. Maheshwaran; A. Arjun; M. Senthil Kumar 220...