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1

Design and control of hierarchically structured nanomaterials  

E-Print Network [OSTI]

by these structures are obtained. Zeolites also contain highly uniform pores, with sizes ranging from approximately three to ten angstroms in diameter. This is a consequence of crystallinity. These small but well- defined pores allow for unique separation... by these structures are obtained. Zeolites also contain highly uniform pores, with sizes ranging from approximately three to ten angstroms in diameter. This is a consequence of crystallinity. These small but well- defined pores allow for unique separation...

Carr, Charles Shane

2005-11-01T23:59:59.000Z

2

Automated design of hierarchical intranets  

Science Journals Connector (OSTI)

This paper describes the use of i-CAD, a prototype tool for automatically synthesizing application specific intranets. i-CAD is a novel intranet computer-aided design software tool, and its ultimate goal is to concurrently design hierarchical network topologies and data management (content distribution) systems for data-intensive multimedia intranets. The prototype software tool introduced here synthesizes a three-level intranet architecture that entails minimal installation cost and yet enables all an intranet's clients to perform their tasks with acceptable performance. The tool chooses network technologies (hardware resources and protocols) based on requirements specified by the user and determines the topology. An evolutionary approach is used to search the design space for a minimal cost three-level network. The experimental results for several network design problems described here indicate the effectiveness of the prototype network tool in finding good designs from a large design space in a reasonable amount of time.

Sami J. Habib; Alice C. Parker; Daniel C. Lee

2002-01-01T23:59:59.000Z

3

NEON: a hierarchically designed national ecological network  

E-Print Network [OSTI]

NEON: a hierarchically designed national ecological network 59 David Schimel, NEON Inc, Boulder, CO (such as fire or flooding), and recovery develop within the domains, constrained by the biophysical

Hargrove, William W.

4

Timpf, S. and A. U. Frank (1997). Using hierarchical spatial data structures for hierarchical spatial reasoning. Spatial Information  

E-Print Network [OSTI]

Timpf, S. and A. U. Frank (1997). Using hierarchical spatial data structures for hierarchical Science 1329: 69-83. Using Hierarchical Spatial Data Structures for Hierarchical Spatial Reasoning Sabine structures to improve efficiency in computing the correct result. An algorithm on hierarchical spatial data

Timpf, Sabine

5

Hierarchically structured bicontinuous polymeric microemulsions  

SciTech Connect (OSTI)

We recently described the synthesis and phase behavior of a new type of CECEC-P multiblock copolymer composed of glassy poly(cyclohexylethylene) (C), semicrystalline poly(ethylene) (E), and elastomeric poly(ethylene-alt-propylene) (P) with symmetric (equal volume) CECEC and P sequences (G. Fleury and F. S. Bates, Macromolecules, 2009, 42, 3598-3610). Here we report the formation and characterization of a multicontinuous structure based on the blending of CEC triblock copolymer and P homopolymer with such a hexablock copolymer along the 50:50 (CEC/P) isopleth. These materials produce a sequence of phases that are correlated with the volume fraction of CECEC-P as evidenced by SAXS and TEM measurements. A percolating bicontinuous mesostructure was identified at volume fractions of hexablock copolymer, f{sub CECEC-P} = 0.10 and 0.125, within the composition range known to result in a bicontinuous morphology in A-B/A/B systems. A solid product was formed by cooling the initially homogeneous ternary mixture from above the melting temperature of the E blocks to room temperature. Crystallization of E leads to microphase separation of C and E and simultaneous ejection of P from CEC (and CECEC) at a larger length scale. The mechanical properties of these materials are inferior to what is anticipated based on pure CEC triblock copolymer, attributable to the low molecular weight and irregular structure of the C/E region sequences. Nevertheless, this study establishes a procedure for producing bicontinuous yet structurally asymmetric materials based on the microemulsion process and extends the concept of a microemulsion to multiblock copolymers.

Fleury, Guillaume; Bates, Frank S. (UMM)

2012-07-24T23:59:59.000Z

6

Micro-, nano- and hierarchical structures for superhydrophobicity, self-cleaning and low adhesion  

Science Journals Connector (OSTI)

...applications compiled by Bharat Bhushan Micro-, nano- and hierarchical structures for superhydrophobicity...described. The influence of micro-, nano- and hierarchical structures on superhydrophobicity...lotus leaf. The influence of micro-, nano- and hierarchical structures on superhydrophobicity...

2009-01-01T23:59:59.000Z

7

Hierarchical Network Structure Promotes Dynamical Robustness  

E-Print Network [OSTI]

The analysis of dynamical systems that attempts to model chemical reaction, gene-regulatory, population, and ecosystem networks all rely on models having interacting components. When the details of these interactions are unknown for biological systems of interest, one effective approach is to study the dynamical properties of an ensemble of models determined by evolutionary constraints that may apply to all such systems. One such constraint is that of dynamical robustness. Despite previous investigations, the relationship between dynamical robustness-an important functional characteristic of many biological systems-and network structure is poorly understood. Here we analyze the stability and robustness of a large class of dynamical systems and demonstrate that the most hierarchical network structures, those equivalent to the total ordering, are the most robust. In particular, we determine the probability distribution of robustness over system connectivity and show that robustness is maximized by maximizing the number of links between strongly connected components of the graph representing the underlying system connectivity. We demonstrate that this can be understood in terms of the fact that permutation of strongly connected components is a fundamental symmetry of dynamical robustness, which applies to networks of any number of components and is independent of the distribution from which the strengths of interconnection among components are sampled. The classification of dynamical robustness based upon a purely topological property provides a fundamental organizing principle that can be used in the context of experimental validation to select among models that break or preserve network hierarchy. This result contributes to an explanation for the observation of hierarchical modularity in biological networks at all scales.

Cameron Smith; Raymond S. Puzio; Aviv Bergman

2014-12-01T23:59:59.000Z

8

Classifying Video Documents by Hierarchical Structure of Video Contents  

Science Journals Connector (OSTI)

...Copyright 2000 Article Classifying Video Documents by Hierarchical Structure of Video Contents Duen-Ren Liu 1 Chen-Hsien Lin 1 Jing-Jang...1998. Revised 8 August, 2000. Recent advances in video database technology and increasing use of the World......

Duen-Ren Liu; Chen-Hsien Lin; Jing-Jang Hwang

2000-01-01T23:59:59.000Z

9

Tubular structured hierarchical mesoporous titania material derived from natural cellulosic substances and application as photocatalyst for degradation of methylene blue  

SciTech Connect (OSTI)

Graphical abstract: Bio-inspired, tubular structured hierarchical mesoporous titania material with high photocatalytic activity under UV light was fabricated employing natural cellulosic substance (cotton) as hard template and cetyltrimethylammonium bromide (CTAB) surfactant as soft template using a one-pot sol-gel method. Highlights: {yields} Tubular structured mesoporous titania material was fabricated by sol-gel method. {yields} The titania material faithfully recorded the hierarchical structure of the template substrate (cotton). {yields} The titania material exhibited high photocatalytic activity in decomposition of methylene blue. -- Abstract: Bio-inspired, tubular structured hierarchical mesoporous titania material was designed and fabricated employing natural cellulosic substance (cotton) as hard template and cetyltrimethylammonium bromide (CTAB) surfactant as soft template by one-pot sol-gel method. The tubular structured hierarchical mesoporous titania material processes large specific surface area (40.23 m{sup 2}/g) and shows high photocatalytic activity in the photodegradation of methylene blue under UV light irradiation.

Huang, Haiqing [Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense, East China Institute of Technology, Fuzhou, Jiangxi 344000 (China)] [Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense, East China Institute of Technology, Fuzhou, Jiangxi 344000 (China); Liu, Xiaoyan [Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)] [Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China); Huang, Jianguo, E-mail: jghuang@zju.edu.cn [Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)] [Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (China)

2011-11-15T23:59:59.000Z

10

Computational Design of Hierarchically Structured Materials  

Science Journals Connector (OSTI)

...SSME). The property objectives obtained from NASA and Rocketdyne engineers were Rockwell hardness R c 60 for wear and...SSME). The property objectives obtained from NASA and Rocketdyne engineers were Rockwell hardness Rc60 for wear and contact...

G. B. Olson

1997-08-29T23:59:59.000Z

11

Hierarchically Structured ZnO Nanorods-Nanosheets for Improved Quantum-Dot-Sensitized Solar Cells  

E-Print Network [OSTI]

). This hierarchical structure had two advantages in improving the power conversion efficiency (PCE) of the solar cells. INTRODUCTION The establishment of low-cost and high-performance solar cells for sustainable energy sourcesHierarchically Structured ZnO Nanorods-Nanosheets for Improved Quantum-Dot-Sensitized Solar Cells

Cao, Guozhong

12

Organisation of design activities: opportunistic, with hierarchical episodes  

Science Journals Connector (OSTI)

......actual design activity, such as it may be observed by an external observer. By showing the structure which the final or inte~edia~ states of the activity must have, this type of plan allows the anticipation of states this activity must attain or go through......

Willemien Visser

1994-09-01T23:59:59.000Z

13

A Design Path for Hierarchical Self-Assembly of Patchy Colloids  

E-Print Network [OSTI]

Patchy colloids are promising candidates for building blocks in directed self-assembly. To be successful the surface patterns need to both be simple enough to be synthesized, while feature-rich enough to cause the colloids to self-assemble into desired structures. Achieving this is a challenge for traditional synthesis methods. Recently it has been suggested that the surface pattern themselves can be made to self-assemble. In this paper we show that a wide range of functional structures can be made to self-assemble using this approach. More generally we present a design path for hierarchical targeted self-assembly of patchy colloids. At the level of the surface structure, we use a predictive method utilizing universality of patterns of stripes and spots, coupled with stoichiometric constraints, to cause highly specific and functional patterns to self-assemble on spherical surfaces. We use a minimalistic model of an alkanethiol on gold as a model system and demonstrate that, even with limited control over the interaction between surface constituents, we can obtain patterns that causes the colloids themselves to self-assemble into various complex geometric structures. We demonstrate how variations of the same design path cause in-silico self-assembly of strings, membranes, cubic and spherical aggregates, as well as various crystalline patterns.

Erik Edlund; Oskar Lindgren; Martin Nilsson Jacobi

2014-05-12T23:59:59.000Z

14

Kruskal-Wallis and Friedman type tests for nested effects in hierarchical designs 1  

E-Print Network [OSTI]

Kruskal-Wallis and Friedman type tests for nested effects in hierarchical designs 1 Assaf P. Oron that the Kruskal-Wallis (K-W) rank test can be extended to test for such effects. Let B = b1 . . . bh be the tested's significant. Rank tests are readily available for one-way designs (Kruskal-Wallis or Wilcoxon

Hoff, Peter

15

A hierarchical structure of neural network implemented for the recognition of automobile license plate number  

E-Print Network [OSTI]

A HIERARCHICAL STRUCTURE OF NEURAL NETWORK IMPLEMENTED FOR THE RECOGNITION OF AUTOMOBILE LICENSE PLATE NURSER A Thesis by JOONGHO CHANG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfdlment... of the requirements for the degree of MASTER OF SCIENCE August 1994 Major Subject: Electrical Engineering A HIERARCHICAL STRUCTURE OF NEURAL NETWORK IMPLEMENTED FOR THE RECOGNITION OF AUTOMOBILE LICENSE PLATE NUMBER A Thesis by JOONGHO CHANG Submitted...

Chang, Joongho

1994-01-01T23:59:59.000Z

16

Evaluation of Design Choices for Gang Scheduling using Distributed Hierarchical Control  

E-Print Network [OSTI]

Evaluation of Design Choices for Gang Scheduling using Distributed Hierarchical Control Dror G to control the adverse e ect of badly-matched gangs. Consequently the on-line mapping and scheduling, Israel Abstract Gang scheduling | the scheduling of a number of related threads to execute simultaneously

Feitelson, Dror

17

Design and Integration of Partial Brain Models Using Hierarchical Cooperative CoEvolution  

E-Print Network [OSTI]

Design and Integration of Partial Brain Models Using Hierarchical Cooperative CoEvolution Michail and integrating brain-inspired artificial cognitive sys- tems. Specifically, we introduce a new computational framework for modelling partial brain areas following a coevolutionary agent-based approach. Properly for

Trahanias, Panos

18

Hierarchical Modeling for Population-Based Heat Exchanger Design  

E-Print Network [OSTI]

Characteristics of the Stirling Engine Regenerator in anapproach to the design of Stirling engine regenerator matrixFoil Regenerator for Stirling Engines." [48] Ibrahim, M. ,

Geb, David

2013-01-01T23:59:59.000Z

19

Hierarchical Modelling of Automotive Sensor Front-Ends For Structural Diagnosis of Aging Faults  

E-Print Network [OSTI]

shown [2] that 41% of failures in automotive electronics could not be identified by functional diagnosisHierarchical Modelling of Automotive Sensor Front-Ends For Structural Diagnosis of Aging Faults h.g.kerkhoff@utwente.nl Abstract: The semiconductor industry for automotive applications is growing

Wieringa, Roel

20

on the complexity of some hierarchical structured matrix algorithms  

E-Print Network [OSTI]

tions of integral equations, PDEs, structured matrix (such as Toeplitz) .... Here, we provide a graph technique where an HSS tree is converted into a ...... implementation is in MATLAB and the flop counts, timing, and accuracies are shown.

2012-05-17T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Breakdown Anodization (BDA) for hierarchical structures of titanium oxide  

E-Print Network [OSTI]

Breakdown Anodization (BDA) of titanium dioxide is a very promising, fast fabrication method to construct micro-scale and nano-scale structures on titanium surfaces. This method uses environmentally friendly electrolytes, ...

Choi, Soon Ju, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

22

A hierarchical structure through imprinting of a polyimide precursor without residual layers  

Science Journals Connector (OSTI)

A patterned polyimide without a residual layer is obtained by imprinting with the assistance of a residual solvent. The effects of the wetting behaviors of the poly-amic acid (PAA) solution coated on various surfaces are examined and the formation of hierarchical patterns without residual layers is demonstrated. polydimethylsiloxane (PDMS) and PEI/PDMS are used as imprinting molds with Si and 300 nm SiO2/Si as substrates. The results indicate that the various ambits of patterns without a residual layer are formed due to the dewetting phenomena caused by surface tension (Suh 2006 Small 2 832). During imprinting, PDMS with a low surface energy makes the PAA solution flow away from its surface exposing the contact area due to dewetting. Self-organized hierarchical structures are also obtained from this process due to effective dewetting. The present study provides a new approach for fabricating patterns without residual layers and the consequent preparation of hierarchical structures, which is considered to be impossible using the lithographic technique.

I-Ting Pai; Ing-Chi Leu; Min-Hsiung Hon

2008-01-01T23:59:59.000Z

23

Hierarchically Structured Ni3S2/Carbon Nanotube Composites as High Performance Cathode Materials for Asymmetric Supercapacitors  

Science Journals Connector (OSTI)

Hierarchically Structured Ni3S2/Carbon Nanotube Composites as High Performance Cathode Materials for Asymmetric Supercapacitors ... Therefore, the active surface area of the Ni3S2 nanoparticles is increased, which further enhances the capacitive performance of the composite electrode. ... nickel sulfide; carbon nanotube; composite; cathode material; asymmetric supercapacitor ...

Chao-Shuan Dai; Pei-Yi Chien; Jeng-Yu Lin; Shu-Wei Chou; Wen-Kai Wu; Ping-Hsuan Li; Kuan-Yi Wu; Tsung-Wu Lin

2013-11-05T23:59:59.000Z

24

Hierarchically Structured Microspheres for High-Efficiency Rutile TiO2Based Dye-Sensitized Solar Cells  

E-Print Network [OSTI]

candidate for use in water splitting, photo- catalysis, sensors, and dye-sensitized solar cells (DSSCs) overHierarchically Structured Microspheres for High-Efficiency Rutile TiO2Based Dye-Sensitized Solar and the Ostwald ripening process. Dye-sensitized solar cells (DSSCs) assembled by employing these complex rutile

Lin, Zhiqun

25

Designing succinct structural alphabets  

Science Journals Connector (OSTI)

......structural fragments of these segments as ns1,ns2,...,nsp. We need to have a collection...1vk5a 1oyga The first 4 letters is the PDB code. The 5th letter is the chain id, missing...six test proteins are: Protein A (PDB code 1FC2), Homeodomain (1ENH), Protein......

Shuai Cheng Li; Dongbo Bu; Xin Gao; Jinbo Xu; Ming Li

2008-07-01T23:59:59.000Z

26

Hierarchically structured TIO2 nanorod spheres for clean water and energy production.  

E-Print Network [OSTI]

??This study focuses on the synthesis of hierarchical TiO2 nanorod spheres for photocatalytic clean water and energy production. TiO2 nanorod spheres were firstly synthesized by… (more)

Bai, Hongwei

2014-01-01T23:59:59.000Z

27

Offshore Structure Design and Development  

Science Journals Connector (OSTI)

...installation and operation of offshore structures for oil and gas exploration and production...service. The importance of offshore oil and gas may be judged by the...exploration investments will go to offshore prospects in future years...

1982-01-01T23:59:59.000Z

28

Structural optimization strategies to design green products  

Science Journals Connector (OSTI)

This paper addresses the need for a structured approach to environmental assessment and improvement. We propose a computer-aided methodology, named Eco-OptiCAD, based on the integration of Structural Optimization and Life Cycle Assessment (LCA) tools. ... Keywords: CAE, Eco-design, LCA, Structural optimization

Davide Russo, Caterina Rizzi

2014-04-01T23:59:59.000Z

29

Five hierarchical levels of sequence-structure correlation in Christopher Bystroff, Yu Shao and Xin Yuan  

E-Print Network [OSTI]

in the database of known proteins tell the story of the folding pathway and of its evolutionary history model measures the degree of a specific type of sequence-structure correlation in the database of known structures. From the perspective of statistical thermodynamics, a database correlation implies

Bystroff, Chris

30

Robust carbon monolith having hierarchical porosity  

DOE Patents [OSTI]

A carbon monolith includes a robust carbon monolith characterized by a skeleton size of at least 100 nm, and a hierarchical pore structure having macropores and mesopores.

Dai, Sheng; Guiohon, Georges A; Liang, Chengdu

2013-02-05T23:59:59.000Z

31

Robust carbon monolith having hierarchical porosity  

SciTech Connect (OSTI)

A carbon monolith includes a robust carbon monolith characterized by a skeleton size of at least 100 nm, and a hierarchical pore structure having macropores and mesopores.

Dai, Sheng; Guiochon, Georges A; Liang, Chengdu

2014-01-14T23:59:59.000Z

32

Five hierarchical levels of sequence-structure correlation in Christopher Bystroff, Yu Shao and Xin Yuan  

E-Print Network [OSTI]

in the database of known proteins tell the story of the folding pathway and of its evolutionary history in the database of known structures. From the perspective of statistical thermodynamics, a database correlation

Bystroff, Chris

33

Structural design of double hull tankers  

SciTech Connect (OSTI)

After a brief introduction of structural design procedure for double hull tankers, their design features are firstly highlighted comparing with conventional single hull tankers. Next discussed are recent topics of double hull VLCC (Very Large Crude oil Carrier) including higher tensile steel and strut arrangement in transverse ring frames. Finally ultimate longitudinal strength of hull girder is analyzed through a simplified method under both sagging and hogging conditions. Making use of this result, some considerations are made on structural reliability of double hull VLCC.

Niho, O.; Yanagibayashi, S.; Akashi, T. [Mitsui Engineering and Shipbuilding Co., Ltd., Tokyo (Japan)

1994-12-31T23:59:59.000Z

34

CABM Symposium Applications of NMR to structure-based drug design in structural  

E-Print Network [OSTI]

CABM Symposium Applications of NMR to structure-based drug design in structural genomics Robert, structure-based drug design, structural genomics Abstract Structural genomics is poised to have a tremendous design in the era of structural genomics. Introduction Structure-based drug design has established itself

Powers, Robert

35

Hierarchical Protein Folding Pathways: A Computational Study of Protein Fragments  

E-Print Network [OSTI]

Hierarchical Protein Folding Pathways: A Computational Study of Protein Fragments Nurit Haspel,1 folding model. The model postulates that protein folding is a hierarchical top-down pro- cess. The basic words: protein folding; building blocks; pro- tein structure prediction; hierarchical folding; protein

Haspel, Nurit

36

Integrated structural and thermal design of an entry vehicle aeroshell  

E-Print Network [OSTI]

, a graphite / epoxy composite structure was designed based on the primary load conditions. Next, a thermal protection system (TPS) was added to the exterior of the vehicle. The second design featured a structurally integrated TPS. This new approach...

Cochran, David Brian

2012-06-07T23:59:59.000Z

37

The Study of Wheeled Semi-trailer Design and Development Based on Scale Model  

Science Journals Connector (OSTI)

One type of wheeled semi-trailer is a complex system which consists of ... design process. In the structural design of hydraulic torque converter, we use the hierarchical multi...4). ...

Xiong Xin; Xuexun Guo…

2013-01-01T23:59:59.000Z

38

Work Structuring to Achieve Integrated ProductProcess Design  

E-Print Network [OSTI]

Work Structuring to Achieve Integrated Product­Process Design Cynthia C. Y. Tsao, A.M.ASCE1 ; Iris presents "work structuring," a term used to describe the effort of integrating product and process design. As the project progresses, work structuring becomes more focused to guide the design and execution of interacting

Tommelein, Iris D.

39

Applying "Design for Disassembly" to connection design in steel structures  

E-Print Network [OSTI]

Design for Disassembly (DfD), also known as Design for Deconstruction, is an emerging initiative of sustainable construction that favors disassembly over demolition, considering a building's full life cycle during the ...

Silverstein, Scott A. (Scott Aaron)

2009-01-01T23:59:59.000Z

40

Composite structural materials play important roles in many engineering applications because of their potential for com-  

E-Print Network [OSTI]

PROBLEM Composite structural materials play important roles in many engineering applications. Composites are also pervasive among biologi- cal materials, exhibiting precise and intriguing architectures new composite designs that use hierarchical structures have been discovered, going directly from com

Polz, Martin

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Multidisciplinary structural design and optimization for performance, cost, and flexibility  

E-Print Network [OSTI]

Reducing cost and improving performance are two key factors in structural design. In the aerospace and automotive industries, this is particularly true with respect to design criteria such as strength, stiffness, mass, ...

Nadir, William David, 1979-

2005-01-01T23:59:59.000Z

42

Optimal design of aperiodic, vertical silicon nanowire structures for photovoltaics  

Science Journals Connector (OSTI)

We design a partially aperiodic, vertically-aligned silicon nanowire array that maximizes photovoltaic absorption. The optimal structure is obtained using a random walk algorithm...

Lin, Chenxi; Povinelli, Michelle L

2011-01-01T23:59:59.000Z

43

Bioinspired, mechanical, deterministic fractal model for hierarchical suture joints  

Science Journals Connector (OSTI)

Many biological systems possess hierarchical and fractal-like interfaces and joint structures that bear and transmit loads, absorb energy, and accommodate growth, respiration, and/or locomotion. In this paper, an elastic deterministic fractal composite mechanical model was formulated to quantitatively investigate the role of structural hierarchy on the stiffness, strength, and failure of suture joints. From this model, it was revealed that the number of hierarchies (N) can be used to tailor and to amplify mechanical properties nonlinearly and with high sensitivity over a wide range of values (orders of magnitude) for a given volume and weight. Additionally, increasing hierarchy was found to result in mechanical interlocking of higher-order teeth, which creates additional load resistance capability, thereby preventing catastrophic failure in major teeth and providing flaw tolerance. Hence, this paper shows that the diversity of hierarchical and fractal-like interfaces and joints found in nature have definitive functional consequences and is an effective geometric-structural strategy to achieve different properties with limited material options in nature when other structural geometries and parameters are biologically challenging or inaccessible. This paper also indicates the use of hierarchy as a design strategy to increase design space and provides predictive capabilities to guide the mechanical design of synthetic flaw-tolerant bioinspired interfaces and joints.

Yaning Li; Christine Ortiz; Mary C. Boyce

2012-03-01T23:59:59.000Z

44

The design and construction of fabric structures  

E-Print Network [OSTI]

In its short history, fabric structures have fascinated architects and engineers alike. Architects appreciate their unusual shapes and forms while engineers delight in their "pure" structural expression. Capable of spanning ...

Fang, Rosemarie

2009-01-01T23:59:59.000Z

45

Evenly distributed unitaries: on the structure of unitary designs  

E-Print Network [OSTI]

We clarify the mathematical structure underlying unitary $t$-designs. These are sets of unitary matrices, evenly distributed in the sense that the average of any $t$-th order polynomial over the design equals the average over the entire unitary group. We present a simple necessary and sufficient criterion for deciding if a set of matrices constitutes a design. Lower bounds for the number of elements of 2-designs are derived. We show how to turn mutually unbiased bases into approximate 2-designs whose cardinality is optimal in leading order. Designs of higher order are discussed and an example of a unitary 5-design is presented. We comment on the relation between unitary and spherical designs and outline methods for finding designs numerically or by searching character tables of finite groups. Further, we sketch connections to problems in linear optics and questions regarding typical entanglement.

D. Gross; K. Audenaert; J. Eisert

2007-05-13T23:59:59.000Z

46

Optimal Fractal-Like Hierarchical Honeycombs Ramin Oftadeh,1  

E-Print Network [OSTI]

.e., zeroth) to fourth order hierarchical honeycombs fabricated using 3D printing. The physical thickness of the structures is constant, tn � 2 mm, because of the limitations of the 3D printing. To maintain the structure

Vaziri, Ashkan

47

Hierarchical Analysis of the Omega Ontology  

SciTech Connect (OSTI)

Initial delivery for mathematical analysis of the Omega Ontology. We provide an analysis of the hierarchical structure of a version of the Omega Ontology currently in use within the US Government. After providing an initial statistical analysis of the distribution of all link types in the ontology, we then provide a detailed order theoretical analysis of each of the four main hierarchical links present. This order theoretical analysis includes the distribution of components and their properties, their parent/child and multiple inheritance structure, and the distribution of their vertical ranks.

Joslyn, Cliff A.; Paulson, Patrick R.

2009-12-01T23:59:59.000Z

48

Hierarchical quantum Ising model  

Science Journals Connector (OSTI)

A quantum Ising chain with both the exchange couplings and the transverse fields arranged in a hierarchical way is considered. Exact analytical results for the critical line and dispersion relation of the low-energy excitations are obtained. It is shown that only when R1=R2>Rc, where R1 and R2 are the hierarchical parameters for the exchange couplings and the transverse fields, respectively, does the system preserve a logarithmic singularity in the specific heat.

Zhifang Lin and Ruibao Tao

1990-06-01T23:59:59.000Z

49

DESIGN PHILOSOPHY FOR STEEL STRUCTURES IN MODERATE SEISMIC REGIONS  

E-Print Network [OSTI]

DESIGN PHILOSOPHY FOR STEEL STRUCTURES IN MODERATE SEISMIC REGIONS E.M. Hines1 and L.A. Fahnestock2 ABSTRACT The authors propose a design philosophy for steel buildings in moderate seismic regions that draws to the continued development and validation of this philosophy. Introduction Recent widespread adoption

Hines, Eric

50

CEE 812 Structural Engineering Seminar Series Design and Construction  

E-Print Network [OSTI]

with energy industry structures, including nuclear power plants, wind turbines and foundations, and stacks Energy Commission and participated in writing the City's Sustainability and Climate Action Plans. #12;CEE 812 ­ Structural Engineering Seminar Series Design and Construction of Energy Industry

Kamat, Vineet R.

51

UNIQUE STRUCTURE Michigan's Ross School of Business designed the Global  

E-Print Network [OSTI]

GLOBAL #12;2 WELCOME UNIQUE STRUCTURE Michigan's Ross School of Business designed the Global MBA Highlights WELCOME #12;WELCOME 2 Why Ross? 6 Curriculum 8 Program Structure 9 Schedule 10 Across into the next generation. DISTINGUISHED DEGREE All Michigan Ross MBA programs adhere to the same rigorous

Michigan, University of

52

Design of Corrosion Allowances on Structures from Weathering Steel  

Science Journals Connector (OSTI)

The corrosion rate of the weathering steel is considerably lower than that of the standard carbon steel. In spite of this, possible effects of corrosion losses on reliable service of the structure throughout the designed service life should be considered when designing the structures. In practice, the effects of the expected corrosion losses are typically eliminated by corrosion allowances which are added to the thickness of the element calculated in static analyses.This paper introduces a new method used for calculation of corrosion allowances. The application of the procedure for calculation of corrosion allowances is explained using example of a bridge structure.

V. K?ivý

2012-01-01T23:59:59.000Z

53

The design of offshore concrete structures in the future  

SciTech Connect (OSTI)

During the last couple of decades a number of offshore concrete structures have been realized, particularly in the North Sea, but also in other locations. These structures support extensive hydrocarbon production activities of considerable economic worth. Four recent and ongoing projects are described in some detail, to highlight the design and construction of such large projects. Design is important for the successful realization of expensive and multidisciplinary offshore projects. This is true for the detail engineering phase as well as the preceding conceptual and pre-engineering phases. The key to successful design of offshore concrete structures in the future lies in the understanding of key elements of the conceptual design, and their mutual dependence.

Johnsrud, J.K.; Olsen, T.O.

1994-12-31T23:59:59.000Z

54

Spatiotemporal Meter: Exploiting Hierarchical Structure  

E-Print Network [OSTI]

Unpublished manuscript, May 2007 Bruno H. Repp Haskins Laboratories 300 George Street New Haven, CT 06511 lights as the visual stimuli, in order to focus on purely temporal variation. Although it seems likely performance than with flashing lights (e.g., Repp & Penel, 2002; Roerdink, Peper, & Beek, 2005; Wimmers, Beek

55

Supplementary Information MODELING HIERARCHICALLY STRUCTURED  

E-Print Network [OSTI]

cylindrical ( phases, pre confirmed la d spherical ( n associated was predict for DBCP m herical (Scp), ols

Lisal, Martin

56

Structural Design Feasibility Study for the Global Climate Experiment  

SciTech Connect (OSTI)

Neon, Inc. is proposing to establish a Global Change Experiment (GCE) Facility to increase our understanding of how ecological systems differ in their vulnerability to changes in climate and other relevant global change drivers, as well as provide the mechanistic basis for forecasting ecological change in the future. The experimental design was initially envisioned to consist of two complementary components; (A) a multi-factor experiment manipulating CO{sub 2}, temperature and water availability and (B) a water balance experiment. As the design analysis and cost estimates progressed, it became clear that (1) the technical difficulties of obtaining tight temperature control and maintaining elevated atmospheric carbon dioxide levels within an enclosure were greater than had been expected and (2) the envisioned study would not fit into the expected budget envelope if this was done in a partially or completely enclosed structure. After discussions between NEON management, the GCE science team, and Keith Lewin, NEON, Inc. requested Keith Lewin to expand the scope of this design study to include open-field exposure systems. In order to develop the GCE design to the point where it can be presented within a proposal for funding, a feasibility study of climate manipulation structures must be conducted to determine design approaches and rough cost estimates, and to identify advantages and disadvantages of these approaches including the associated experimental artifacts. NEON, Inc requested this design study in order to develop concepts for the climate manipulation structures to support the NEON Global Climate Experiment. This study summarizes the design concepts considered for constructing and operating the GCE Facility and their associated construction, maintenance and operations costs. Comparisons and comments about experimental artifacts, construction challenges and operational uncertainties are provided to assist in selecting the final facility design. The overall goal of this report is to provide a cost and technological basis for selection of the appropriate GCE Facility design.

Lewin,K.F.; Nagy, J.

2008-12-01T23:59:59.000Z

57

The design of impact absorbing structures for additive manufacture  

Science Journals Connector (OSTI)

Additive manufacturing (AM) is increasingly becoming a viable manufacturing process due to dramatic advantages that it facilitates in the area of design complexity. This paper investigates the potential of additively manufactured lattice structures for the application of tailored impact absorption specifically for conformal body protection. It explores lattice cell types based on foam microstructures and assesses their suitability for impact absorption. The effect of varying the cell strut edge design is also investigated. The implications of scaling these cells up for AM are discussed as well as the design issues regarding the handling of geometric complexity and the requirement for body conformity. The suitability of AM materials for this application is also discussed.

J Brennan-Craddock; D Brackett; R Wildman; R Hague

2012-01-01T23:59:59.000Z

58

WEB QUERY STRUCTURE: IMPLICATIONS FOR IR SYSTEM DESIGN  

E-Print Network [OSTI]

WEB QUERY STRUCTURE: IMPLICATIONS FOR IR SYSTEM DESIGN Bernard J. Jansen Computer Science Program Military Academy West Point, New York 10996 Please Cite: Jansen, B. J., Spink, A., & Pfaff, A. 2000. Web in the context of the Web (Jansen, Spink, & Saracevic, 2000; Jansen and Pooch (under review), Lawrence & Giles

Jansen, James

59

A two stage procedure for control structure analysis and design  

Science Journals Connector (OSTI)

A two stage procedure for control structure analysis and design is proposed and investigated on a heatpump control structure synthesis problem. In the first stage qualitative process knowledge is used to suggest possible control structures, ie. measurements, actuators and feasible loop pairings for multiloop SISO (scalar) control. In the second stage frequency dependent SVD (Singular Value Decomposition) is employed on a quantitative model to indicate, whether a multivariable control strategy is called for. If scalar control is inferred to be adequate, the RGA (Relative Gain Array) method is used to synthesize loop pairings for multiloop SISO control. The proposed procedure is demonstrated using a heatpump control structure analysis and design problem. The heatpump is used on an industrial scale energy integrated distillation column. Based on qualitative knowledge the process interactions are illustrated using a \\{DYnamic\\} Quantity Interaction Diagram (DYQUID). From qualitative considerations a multiloop SISO control strategy, which concurs with intuitive engineering knowledge, is suggested. A linear state space model obtained from a non-linear simulation model is used to quantitatively analyse the control structuring problem. SVD analysis shows, that a multiloop control strategy is justified, and RGA analysis suggests the same loop structure as inferred qualitatively. Finally the overall control structure for the energy integrated distillation column is discussed in relation to experimental results.

Jens Karlsmose; Arne Koggersbøl; Niels Jensen; Sten Bay Jørgensen

1994-01-01T23:59:59.000Z

60

Breaking Symmetry toward Nonspherical Janus Particles Based on Polyhedral Oligomeric Silsesquioxanes: Molecular Design, “Click” Synthesis, and Hierarchical Structure  

Science Journals Connector (OSTI)

Janus particles, named after the double-faced Roman god, are compartmentalized colloids with 2 sides of different chem. ... feature in the particle architecture, the synthesis of Janus particles remained challenging for a long time. ...

Yiwen Li; Wen-Bin Zhang; I-Fan Hsieh; Guoliang Zhang; Yan Cao; Xiaopeng Li; Chrys Wesdemiotis; Bernard Lotz; Huiming Xiong; Stephen Z. D. Cheng

2011-06-16T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Design and Structural Analysis of Mars Rover RTG  

SciTech Connect (OSTI)

The paper describes the design and the structural and mass analysis of a Radioisotope Thermoelectric Generators (RTGs) for powering the MARS Rover vehicle, which is a critical element of the unmanned Mars Rover and Sample Return mission (MRSR). The RTG design study was conducted by Fairchild Space Company for the U.S. Department of Energy, in support of the Jet Propulsion Laboratory's MRSR project.; The paper briefly describes a reference mission scenario, an illustrative Rover design and activity pattern on Mars, and its power system requirements and environmental constraints, including the RTG cooling requirements during transit to Mars. It identifies the key RTG design problem, i.e. venting the helium generated by the fuel's alpha decay without intrusion of the Martian atmosphere into the RTG, and proposes a design approach for solving that problem.; Using that approach, it describes a very conservative baseline RTG design. The design is based on the proven and safety-qualified General Purpose Heat Source module, and employs standard thermoelectric unicouples whose reliability and performance stability has been extensively demonstrated on previous space missions. The heat source of the 250-watt RTG consists of a stack of 18 separate modules that is supported at its ends but not along its length. The paper describes and analyzes the structure that holds the stack together during Earth launch and Mars operations but allows it to come apart in case of an inadvertent reentry.; A companion paper presented at this conference describes the RTG's thermal and electrical analysis, and compares its performance with that of several lighter but less conservative design options.; There is a duplicate copy in the ESD files. This document is not relevent to OSTI Library. Do not send.

Schock, Alfred; Hamrick, T.; Sankarankandath, V.; Shirbacheh, M.

1989-09-29T23:59:59.000Z

62

Understanding Thin Film Structure for the Rational Design of  

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

Understanding Thin Film Structure for the Rational Design of Understanding Thin Film Structure for the Rational Design of High-performance Organic Semiconductors for Plastic Electronics Organic semiconductors are attracting considerable research interest due to their potential applications in low-cost electronics such as organic light emitting diode (OLED) displays, RF identification tags (RFID), smart cards and electronic paper. The development of p-conjugated materials, which are composed of alternating single and double chemical bonds, are the foundation of these applications. In the past decade research in this field has progressed to the extent that desirable charge transport in the organic semiconductor film in organic thin film transistors (OTFT) can be achieved through molecular design by selective placement of electron-rich, electron-withdrawing, and aromatic groups in different parts of the molecule. Although the electronic properties are easily tuned by molecular design, the molecular packing within the thin film and the film microstructure have a significant influence on the OTFT performance. Despite this importance, this interrelationship between molecular structure, thin film molecular packing and charge transport are only poorly understood.

63

Structure and Design a Finance Program with Loan Loss Reserve Funds  

Broader source: Energy.gov [DOE]

The process for structuring and designing a finance program with a loan loss reserve (LLR) fund typically includes research and preparing a finance program design document.

64

Design of structured vector quantizers for diversity communication systems  

E-Print Network [OSTI]

. B. Two-Dimensional Index Assignments 1. Hexagonal l, sttice 2. S Lattice 8 9 ll 17 18 21 AN APPROACH TO STRUCTURED VECTOR QUANTI- ZATION FOR MULTIPI E CHANNELS . . . . . . , . . . . . . 24 A. SVQ for Two Channels . B. Design Algorithm 1... assignment, k=2 5J vu1 LIST OF FIGURES FIGURE Page The MDSQ in a diversity system. Example of a labeling of the real line with indices . Sicle lattice used with Hexagonal index assignment 17 19 Central lattice formed from two offset Hexagonal...

Buzi, Larry Z

1994-01-01T23:59:59.000Z

65

Designing Allosteric Control into Enzymes by Chemical Rescue of Structure  

SciTech Connect (OSTI)

Ligand-dependent activity has been engineered into enzymes for purposes ranging from controlling cell morphology to reprogramming cellular signaling pathways. Where these successes have typically fused a naturally allosteric domain to the enzyme of interest, here we instead demonstrate an approach for designing a de novo allosteric effector site directly into the catalytic domain of an enzyme. This approach is distinct from traditional chemical rescue of enzymes in that it relies on disruption and restoration of structure, rather than active site chemistry, as a means to achieve modulate function. We present two examples, W33G in a {beta}-glycosidase enzyme ({beta}-gly) and W492G in a {beta}-glucuronidase enzyme ({beta}-gluc), in which we engineer indole-dependent activity into enzymes by removing a buried tryptophan side chain that serves as a buttress for the active site architecture. In both cases, we observe a loss of function, and in both cases we find that the subsequent addition of indole can be used to restore activity. Through a detailed analysis of {beta}-gly W33G kinetics, we demonstrate that this rescued enzyme is fully functionally equivalent to the corresponding wild-type enzyme. We then present the apo and indole-bound crystal structures of {beta}-gly W33G, which together establish the structural basis for enzyme inactivation and rescue. Finally, we use this designed switch to modulate {beta}-glycosidase activity in living cells using indole. Disruption and recovery of protein structure may represent a general technique for introducing allosteric control into enzymes, and thus may serve as a starting point for building a variety of bioswitches and sensors.

Deckert, Katelyn; Budiardjo, S. Jimmy; Brunner, Luke C.; Lovell, Scott; Karanicolas, John (Kansas)

2012-08-07T23:59:59.000Z

66

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION  

E-Print Network [OSTI]

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION AND TIE KNOTS Thomas M. A. Fink st. john Introduction 3 1.1 Inverse Protein Folding 3 1.2 Hierarchical Optimisation 5 1.3 Tie Knots 6 1.4 Schematic Organisation 6 1.5 Publications 9 2 Protein Folding, Inverse Protein Folding and Energy Landscapes 10 2

Halligan, Daniel

67

New approach to the design of core support structures for large LMFBR plants  

SciTech Connect (OSTI)

The paper describes an innovative design concept for a LMFBR Core Support Structure. A hanging Core Support Structure is described and analyzed. The design offers inherent safety features, constructibility advantages, and potential cost reductions.

Burelbach, J.P.; Kann, W.J.; Pan, Y.C.; Saiveau, J.G.; Seidensticker, R.W.

1984-01-01T23:59:59.000Z

68

Modular design for increasing assembly automation  

Science Journals Connector (OSTI)

Abstract Modular design can address the need for a high number of product variants and further allow a higher degree of automation in the assembly line. A framework is developed for the simultaneous modular product design and the design of automated manufacturing system. Product designs are optimized for automation using Design Structure Matrix and Modular Function Deployment. Alternative production systems are designed and accessed based on the analysis of assembly steps hierarchically. The implementation of the framework on the design of a production system for furniture assembly, able to handle multiple variants with a large number of components, is demonstrated.

Konstantinos Salonitis

2014-01-01T23:59:59.000Z

69

Design and evaluation of large scale pultruded fiberglass tubular structures  

SciTech Connect (OSTI)

Large solid wood structures have been used in structural applications such as utility poles and marine pilings for a long time. A pultruded fiberglass reinforced polymer composite utility pole has been designed by the Composite Power Corporation of Las Vegas, Nevada which meets or exceeds the wood pole strength standards. This type of pole has many advantages over traditional wood, metal or concrete poles including: lighter weight, easier to climb and service, better dielectric and fire resistance properties, and it is more environmentally sound than treated wood poles. Utility crossarms, other attachments, and climbing devices are secured to grooves which run the entire length of the pole so there is no need to drill holes or wear spiked boots which would compromise the strength of the pole. Bending and torsion experiments have been conducted to determine if the present design meets the strength requirements of a forty foot Class one wood pole. Initial results of the composite pole tests showed a 17 percent advantage in bending strength, a 449 percent advantage in strength due to a vertical load applied to a crossarm, and a 43 percent advantage in twisting strength. Plans for further material characterization experiments and detailed stress and failure analysis are discussed.

O`Toole, B.J. [Univ. of Nevada, Las Vegas, NV (United States). Mechanical Engineering Department

1994-12-31T23:59:59.000Z

70

Japanese structure survey of radiation oncology in 2009 with special reference to designated cancer care hospitals  

Science Journals Connector (OSTI)

The structure of radiation oncology in designated cancer care hospitals in Japan was surveyed in terms of equipment, personnel...

Hodaka Numasaki; Masamichi Nishio…

2013-10-01T23:59:59.000Z

71

National structure of radiation oncology in Japan with special reference to designated cancer care hospitals  

Science Journals Connector (OSTI)

The structure of radiation oncology in designated cancer care hospitals in Japan was investigated in terms of equipment, personnel...

Hodaka Numasaki; Teruki Teshima…

2009-06-01T23:59:59.000Z

72

Conversion of Ethanol to Hydrocarbons on Hierarchical HZSM-5 Zeolites  

SciTech Connect (OSTI)

This study reports synthesis, characterization, and catalytic activity of the nano-size hierarchical HZSM-5 zeolite with high mesoporosity produced via a solvent evaporation procedure. Further, this study compares hierarchical zeolites with conventional HZSM-5 zeolite with similar Si/Al ratios for the ethanol-to-hydrocarbon conversion process. The catalytic performance of the hierarchical and conventional zeolites was evaluated using a fixed-bed reactor at 360 °C, 300 psig, and a weight hourly space velocity of 7.9 h-1. For the low Si/Al ratio zeolite (~40), the catalytic life-time for the hierarchical HZSM-5 was approximately 2 times greater than the conventional HZSM-5 despite its coking amount deposited 1.6 times higher than conventional HZSM-5. For the high Si/Al ratio zeolite (~140), the catalytic life-time for the hierarchical zeolite was approximately 5 times greater than the conventional zeolite and the amount of coking deposited was 2.1 times higher. Correlation was observed between catalyst life time, porosity, and the crystal size of the zeolite. The nano-size hierarchical HZSM-5 zeolites containing mesoporosity demonstrated improved catalyst life-time compared to the conventional catalyst due to faster removal of products, shorter diffusion path length, and the migration of the coke deposits to the external surface from the pore structure.

Ramasamy, Karthikeyan K.; Zhang, He; Sun, Junming; Wang, Yong

2014-12-15T23:59:59.000Z

73

Direct hierarchical assembly of nanoparticles  

DOE Patents [OSTI]

The present invention provides hierarchical assemblies of a block copolymer, a bifunctional linking compound and a nanoparticle. The block copolymers form one micro-domain and the nanoparticles another micro-domain.

Xu, Ting; Zhao, Yue; Thorkelsson, Kari

2014-07-22T23:59:59.000Z

74

The structure and operation of a design language compatible simulator  

Science Journals Connector (OSTI)

Logic design language provides a powerful tool for digital system specification. When coupled with automated logic design techniques the result is an extremely efficient mechanism for system realization. However, before any design process can be considered ...

Memhet B. Baray; Stephen Y. H. Su; Robert L. Carberry

1971-06-01T23:59:59.000Z

75

Hierarchical Silica Nanostructures Inspired by Diatom Algae Yield Superior Deformability, Toughness, and Strength  

E-Print Network [OSTI]

Hierarchical Silica Nanostructures Inspired by Diatom Algae Yield Superior Deformability, Toughness algae that is mainly composed of amorphous silica, which features a hierarchical structure that ranges in diatom algae as a basis to study a bioinspired nanoporous material implemented in crystalline silica. We

Buehler, Markus J.

76

Design for Additive Manufacturing—Element transitions and aggregated structures  

Science Journals Connector (OSTI)

Abstract Additive Manufacturing technologies create parts layer by layer. Thereby, lots of benefits are offered. Especially extended design freedoms provide new potentials for the design of technical parts. To make these benefits accessible to different user groups, design rules for Additive Manufacturing were developed within the project “Direct Manufacturing Design Rules”. Therefore a process independent method was defined first. Next, design rules were developed for Laser Sintering, Laser Melting and Fused Deposition Modeling. The results were summarized in a design rule catalog and support a suitable design for Additive Manufacturing.

Guido A.O. Adam; Detmar Zimmer

2014-01-01T23:59:59.000Z

77

Damage-based design of steel structures. Dr. Georgios Kamaris, School of Engineering, University of Warwick  

E-Print Network [OSTI]

Damage-based design of steel structures. Dr. Georgios Kamaris, School of Engineering, University method for seismic design of plane steel moment resisting framed structures is developed. This method of Steel Structures (2011) at the Department of Civil Engineering of the Univ. of Patras (Greece). He

Davies, Christopher

78

Fusion: A general framework for hierarchical tilings  

E-Print Network [OSTI]

One well studied way to construct quasicrystalline tilings is via inflate-and-subdivide (a.k.a. substitution) rules. These produce self-similar tilings--the Penrose, octagonal, and pinwheel tilings are famous examples. We present a different model for generating hierarchical tilings we call "fusion rules". Inflate-and-subdivide rules are a special case of fusion rules, but general fusion rules are more flexible and allow for defects, changes in geometry, and even constrained randomness. A condition that produces homogeneous structures and a method for computing frequency for fusion tiling spaces are discussed.

Natalie Priebe Frank

2013-11-21T23:59:59.000Z

79

Optimized design and structural analysis of a non-pressurized manned submersible  

E-Print Network [OSTI]

This thesis presents an approach to the structural design and optimization of a non-pressurized manned submersible (NPMS), a type of fully "flooded" submersible based on a SEAL Delivery Vehicle (SDV) Design Concept. Using ...

Shepard, Kenneth (Kenneth S.)

2011-01-01T23:59:59.000Z

80

Workflow structuring and reengineering method for design process  

Science Journals Connector (OSTI)

A short lead time for product commercialization is a critical advantage in the era of highly challenging competitions. It is more difficult, however, to shorten the design process rather than manufacturing process since the underlying design activities ... Keywords: Design process, Reengineering, Workflow

Heejung Lee; Hyo-Won Suh

2006-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Development of load and resistance factor design for FRP strengthening of reinforced concrete structures  

E-Print Network [OSTI]

1999). Relating an acceptable risk of structural failure toAcceptable Levels of Risk.design can hold the risk to acceptable levels by accounting

Atadero, Rebecca Anne

2006-01-01T23:59:59.000Z

82

Extending the hierarchical systems knowledge representation framework : interfacing with geographic information systems  

E-Print Network [OSTI]

This thesis presents the design and implementation of a geographic information systems framework in which engineering systems can be created and analyzed. This framework extends the hierarchical systems knowledge representation ...

Phillips, Reesa Brooke

2008-01-01T23:59:59.000Z

83

Japanese Structure Survey of Radiation Oncology in 2007 with Special Reference to Designated Cancer Care Hospitals  

Science Journals Connector (OSTI)

The structure of radiation oncology in designated cancer care hospitals in Japan was investigated in terms of equipment, personnel ... of changes in the health care policy in Japan on radiotherapy structure was a...

Hodaka Numasaki; Hitoshi Shibuya; Masamichi Nishio…

2011-03-01T23:59:59.000Z

84

Concrete Structure Design Using Mixed-Integer Nonlinear ...  

E-Print Network [OSTI]

Nov 24, 2009 ... demonstrate the ability to conduct complex inelastic analysis of RC ... rounding operations to obtain discrete-valued, constructible design ...

2009-11-24T23:59:59.000Z

85

CSP with Hierarchical State  

Science Journals Connector (OSTI)

The process algebra CSP is designed for specifying interactions between concurrent systems. In CSP, and related languages, concurrent processes synchronise ... this paper we propose an extension of the CSP langua...

Robert Colvin; Ian J. Hayes

2009-01-01T23:59:59.000Z

86

Hierarchical CP-networks Denis Mindolin  

E-Print Network [OSTI]

Hierarchical CP-networks Denis Mindolin Dept. of Computer Science and Engineering, University a variant of acyclic CP-networks. It allows not only finite but also infinite domain attributes. It also has induced by a hierarchical CP- network, thus making it possible to work with hierarchical CP

Chomicki, Jan

87

Manufacturing and fracture of hierarchical composite materials enhanced with aligned carbon nanotubes  

E-Print Network [OSTI]

Hierarchical advanced composite structures comprised of both nano- and micro-scale fibers are currently being studied as next-generation materials for multifunctional aerospace applications. Carbon nanotubes (CNTs) are an ...

Wicks, Sunny S

2014-01-01T23:59:59.000Z

88

Conceptual design of an L-band recirculating superconducting traveling wave accelerating structure for ILC  

SciTech Connect (OSTI)

With this paper, we propose the conceptual design of a traveling wave accelerating structure for a superconducting accelerator. The overall goal is to study a traveling wave (TW) superconducting (SC) accelerating structure for ILC that allows an increased accelerating gradient and, therefore reduction of the length of the collider. The conceptual studies were performed in order to optimize the acceleration structure design by minimizing the surface fields inside the cavity of the structure, to make the design compatible with existing technology, and to determine the maximum achievable gain in the accelerating gradient. The proposed solution considers RF feedback system redirecting the accelerating wave that passed through the superconducting traveling wave acceleration (STWA) section back to the input of the accelerating structure. The STWA structure has more cells per unit length than a TESLA structure but provides an accelerating gradient higher than a TESLA structure, consequently reducing the cost. In this paper, the STWA cell shape optimization, coupler cell design and feedback waveguide solution are considered. We also discuss the field flatness in the superconducting TW structure, the HOM modes and multipactor performance have been studied as well. The proposed TW structure design gives an overall 46% gain over the SW ILC structure if the 10 m long TW structure is employed.

Avrakhov, P.; Kanareykin, A.; Liu, Z.; Kazakov, S.; /KEK, Tsukuba; Solyak, N.; /Fermilab; Yakovlev, V.; /Omega-P, New Haven /Yale U.; Gai, W.; /Argonne

2007-06-01T23:59:59.000Z

89

Hierarchical classification of modulation signals  

E-Print Network [OSTI]

features are extracted and used to classify 11 modulation signals plus white noise in a hierarchical fashion. The modulation signals include carrier wave (CW), AM, FM, SSB, FSK2, FSK4, PSK2, PSK4, OOK, QAM16, and QAM32. A hierarchy of classifiers...

Kim, Nam Jin

2012-06-07T23:59:59.000Z

90

Quantifying architects' and engineers' use of structural design software  

E-Print Network [OSTI]

Both architects and engineers encounter significant barriers and hurdles that compartmentalize both fields and increase the complexity of collaborative design. In addition to little interaction between both fields, software ...

Arnaud, Virginie B. (Virginie Blandine)

2013-01-01T23:59:59.000Z

91

Experimental design for study of nucleate boiling in porous structures  

E-Print Network [OSTI]

The superheat required to initiate nucleate boiling inside porous wicks is not well understood in practice. This thesis reports the design of an experimental setup for investigating the onset of vapor nucleation in sintered ...

Kelley, Mitchell Joseph

2011-01-01T23:59:59.000Z

92

Accelerating Structure design and fabrication For KIPT and PAL XFEL  

E-Print Network [OSTI]

ANL and the National Science Center "Kharkov Institute of Physics Technology" (NSC KIPT, Kharkov, Ukraine) jointly proposed to design and build a 100MeV/100KW linear accelerator which will be used to drive the neutron source subcritical assembly. Now the linac was almost assembled in KIPT by the team from Institute of High Energy Physics (IHEP, Beijing, China). The design and measurement result of the accelerating system of the linac will be described in this paper.

Hou, Mi; Pei, Shilun

2014-01-01T23:59:59.000Z

93

Application of a Gibbs Sampler to estimating parameters of a hierarchical normal model with a time trend and testing for existence of the global warming.  

E-Print Network [OSTI]

??This research is devoted to studying statistical inference implemented using the Gibbs Sampler for a hierarchical Bayesian linear model with first order autoregressive structure. This… (more)

Yankovskyy, Yevhen

2008-01-01T23:59:59.000Z

94

Seismic design technology for Breeder Reactor structures. Volume 3: special topics in reactor structures  

SciTech Connect (OSTI)

This volume is divided into six chapters: analysis techniques, equivalent damping values, probabilistic design factors, design verifications, equivalent response cycles for fatigue analysis, and seismic isolation. (JDB)

Reddy, D.P. (ed)

1983-04-01T23:59:59.000Z

95

Multiscale structural and mechanical design of mineralized biocomposites  

E-Print Network [OSTI]

Gastropod mollusk nacre tablets and Polypterus senegalus armored scales share common features such as a very complex and changing structure spanning several length scales. The smallest building blocks are single crystals, ...

Bruet, Benjamin J. F. (Benjamin Jean Fernand), 1980-

2008-01-01T23:59:59.000Z

96

An Affordable Approach for Robust Design of Thick Laminated Composite Structure  

E-Print Network [OSTI]

An Affordable Approach for Robust Design of Thick Laminated Composite Structure Wei Chen* Assistant of thick laminated composite structures. Our approach integrates the principles of the Robust Concept-level optimization procedure for managing the complexity of composite structure optimization. Foundational

Chen, Wei

97

Aerodynamic-Structural Design Studies of Low-Sweep Transonic Wings  

E-Print Network [OSTI]

Aerodynamic-Structural Design Studies of Low-Sweep Transonic Wings Antony Jameson Department level. High-fidelity aerodynamic and aerodynamic-structural optimizations are performed on a set to significantly reduce wing sweep without incurring either aerodynamic or structural penalties, especially for M

Jameson, Antony

98

Designing cathodic protection systems for marine structures and vehicles. ASTM special technical publication 1370  

SciTech Connect (OSTI)

Cathodic protection is an important method of protecting structures and ships from the corrosive effects of seawater. Poor designs can be far more costly to implement than optimal designs, Improper design can cause overprotection, with resulting paint blistering and accelerated corrosion of some alloys, underprotection, with resultant structure corrosion, or stray current corrosion of nearby structures. The first ASTM symposium specifically aimed at cathodic protection in seawater was intended to compile all the criteria and philosophy for designing both sacrificial and impressed current cathodic protection systems for structures and vehicles in seawater. The papers which are included in this STP are significant in that they summarize the major seawater cathodic protection system design philosophies. Papers have been processed separately for inclusion on the database.

Hack, H.P. [ed.

1999-07-01T23:59:59.000Z

99

Guide to FEMP-Designated Parking Structure Lighting  

Broader source: Energy.gov [DOE]

Document provides acquisition guidance and federal efficiency requirements across a variety of product cate­gories, including parking garage luminaires, which are a FEMP-designated product category. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

100

RNA Secondary Structure Design under Simple and Complex Constraints  

E-Print Network [OSTI]

are different between E.coli and eukaryotes. Thus, one has to redesign the human/mammalian selenoprotein- binant expression in a system like E.coli straightforwardly since the selenocysteine insertion mechanisms an effective neighbor selection method. During the initialization, we design a sequence that among all

Will, Sebastian

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Design and put in place institutional structures and processes | Open  

Open Energy Info (EERE)

and put in place institutional structures and processes and put in place institutional structures and processes Jump to: navigation, search Stage 1 LEDS Home Introduction to Framework Assess current country plans, policies, practices, and capacities Develop_BAU Stage 4: Prioritizing and Planning for Actions Begin execution of implementation plans 1.0. Organizing the LEDS Process 1.1. Institutional Structure for LEDS 1.2. Workplan to Develop the LEDS 1.3. Roles and responsibilities to develop LEDS 2.1. Assess current country plans, policies, practices, and capacities 2.2. Compile lessons learned and good practices from ongoing and previous sustainable development efforts in the country 2.3. Assess public and private sector capacity to support initiatives 2.4. Assess and improve the national GHG inventory and other

102

Lattice-structures and constructs with designed thermal expansion coefficients  

SciTech Connect (OSTI)

A thermal expansion-managed lattice structure having a plurality of unit cells each having flexure bearing-mounted tabs supported on a base and actuated by thermal expansion of an actuator having a thermal expansion coefficient greater than the base and arranged so that the tab is inwardly displaced into a base cavity. The flexure bearing-mounted tabs are connected to other flexure-bearing-mounted tabs of adjacent unit cells so that the adjacent unit cells are spaced from each other to accommodate thermal expansion of individual unit cells while maintaining a desired bulk thermal expansion coefficient of the lattice structure as a whole.

Spadaccini, Christopher; Hopkins, Jonathan

2014-10-28T23:59:59.000Z

103

Some challenges in design and construction of the Draugen gravity base structures  

SciTech Connect (OSTI)

The paper gives a general description of the Concrete Gravity Base Structure (GBS) for the Draugen platform installed by Norwegian Contractors a.s. The GBS was installed at the Haltenbank area on the Norwegian continental shelf in May 1993 for A/S Norske Shell. Further, the paper describes the following challenging aspects encountered during the design and construction: design for high frequency response to wave loading, so called ringing, discovered during construction of the GBS; impact of the ringing effect discovery on the construction schedule; design to prevent delamination of concrete structural elements; modifications to prevent damages on pipe work caused by deformations of the concrete structure.

Sandvik, K.; Karal, K. [Norwegian Contractors A.S., Stabekk (Norway)

1994-12-31T23:59:59.000Z

104

Hierarchical predictive control of integrated wastewater treatment systems  

Science Journals Connector (OSTI)

The paper proposes an approach to designing the control structure and algorithms for optimising control of integrated wastewater treatment plant-sewer systems (IWWTS) under a full range of disturbance inputs. The optimised control of IWWTS allows for significant cost savings, fulfilling the effluent discharge limits over a long period and maintaining the system in sustainable operation. Due to the specific features of a wastewater system a hierarchical control structure is applied. The functional decomposition leads to three control layers: supervisory, optimising and follow-up. A temporal decomposition that is applied in order to efficiently accommodate the system's multiple time scales leads to further decomposition of the optimising control layer into three control sublayers: slow, medium, and fast. An extended Kalman Filter is used to carry out an estimation of needed but not measured plant states in real time. The robustly feasible model predictive controller produces manipulated variable trajectories based on a dedicated grey box (GB) model of the biological processes and drawing its physical reality from the well known \\{ASM2d\\} model. The GB model parameters are dependant on the plant operating point and therefore are continuously estimated. As it is impossible to efficiently control the plant under all influent conditions that may occur by using one universal control strategy, different control strategies are designed. Recently developed mechanisms for soft switching between the MPC control strategies are applied in order to smooth the state and control transient processes during the switching. The methodologies and algorithms proposed in the paper are validated by simulation based on real data records from a wastewater system located in Kartuzy, northern Poland. The control system was implemented at the case-study site to generate in real time the control actions that were assessed by the plant operators and verified by simulation based on a calibrated plant model.

M.A. Brdys; M. Grochowski; T. Gminski; K. Konarczak; M. Drewa

2008-01-01T23:59:59.000Z

105

ASCE/SEI Technical Committee on Optimal Structural Design  

E-Print Network [OSTI]

-Champaign (Control Member) · Christopher M. Foley, Marquette University (Control Member and Assoc. Editor) · Dan, Brigham Young University (Member) · Ali Memari, Penn State University (Member) · Keith Mueller (Member by Christopher Foley. The session has five papers. b. "Soft Computing Potentials in Structural Optimization

Swan Jr., Colby Corson

106

Coupling structural and functional models for interaction design  

Science Journals Connector (OSTI)

......map. Structural models, such as the subway map in this example, describe the internal...instance, returning to the example of the subway passenger given above, the passenger's...word processor, a cellular phone, a car audio system, and an ultrasonic device. The......

Dong-Seok Lee; Wan Chul Yoon

2004-02-01T23:59:59.000Z

107

Non-deterministic design and analysis of parameterized optical structures during conceptual design  

E-Print Network [OSTI]

The next generation of space observatories will use larger mirrors while meeting tighter optical performance requirements than current space telescopes. The spacecraft designs must satisfy the drive for low-mass, low-cost ...

Uebelhart, Scott Alan, 1975-

2006-01-01T23:59:59.000Z

108

Case studies in DSM : utilizing the Design Structure Matrix to improve New Product Introduction  

E-Print Network [OSTI]

This thesis describes a project that applies the Design Structure Matrix (DSM) in support of the Manufacturing Excellence (MX) program at Cisco Systems, Inc to reduce the cycle time of new product development initiatives ...

Go, Julie W

2007-01-01T23:59:59.000Z

109

Application of the Design Structure Matrix (DSM) to the real estate development process  

E-Print Network [OSTI]

This thesis presents a pioneering application of an engineering systems framework, the Design Structure Matrix (DSM), to model the real estate development (RED) process. The DSM is a process modeling tool that originated ...

Bulloch, Benjamin (Benjamin Edward)

2009-01-01T23:59:59.000Z

110

Design and fabrication of micro- and nano- dielectric structures for imaging and focusing at optical frequencies  

E-Print Network [OSTI]

In this thesis work, design and fabrication of micro- and nano-photonic structures both in the diffraction regime and sub-wavelength regime have been investigated. In the diffraction regime, two types of optical systems ...

Takahashi, Satoshi, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

111

Cathodic protection system design for steel pilings of a wharf structure  

SciTech Connect (OSTI)

Corrosion of steel pilings in sea and brackish water is mostly due to the establishment of localized corrosion cells and the effects of the tidal changes. The most frequently used corrosion protection systems are coatings and/or cathodic protection. These protective systems when properly designed, installed and operated are very effective in preventing corrosion problems. The design of a cathodic protection system, in order to be effective and reliable, must take into consideration all technical design criteria, the type of materials used, the geometric shape of the structure, environmental conditions, site restrictions, and any outside interferences. These design considerations, as well as the use of design data and an overall design methodology for a cathodic protection system for pipe and sheet piling used in a wharf structure, are discussed in this paper.

Nikolakakos, S.

1999-07-01T23:59:59.000Z

112

Special challenges in design and construction of concrete structures in shallow water and soft soil  

SciTech Connect (OSTI)

The paper summarizes briefly the trends in offshore concrete structures in the North Sea and reviews the main decisive design requirements. General design process and foundation design with emphasis on soft soil conditions are described and discussed. Further the paper presents 3 gravity based concrete platforms for soft soil in 145 m, 75 m and 20 m water depths, respectively. Particulars on the construction site and work, and main items on project execution model are discussed.

Loset, O. [Kvaerner Concrete Construction, Hovik (Norway); Schroder, K. [Norwegian Geotechnical Inst., Oslo (Norway)

1994-12-31T23:59:59.000Z

113

Hierarchically Structured Materials for Lithium Batteries. |...  

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

battery (LIB) is one of the most promising power sources to be deployed in electric vehicles (EV), including solely battery powered vehicles, plug-in hybrid electric vehicles,...

114

Hierarchical Assembly of Inorganic Nanostructure Building Blocks...  

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

Nanostructure Building Blocks to Octahedral Superstructures – A True Template-Free Self Hierarchical Assembly of Inorganic Nanostructure Building Blocks to Octahedral...

115

Structural Design of a Horizontal-Axis Tidal Current Turbine Composite Blade  

SciTech Connect (OSTI)

This paper describes the structural design of a tidal composite blade. The structural design is preceded by two steps: hydrodynamic design and determination of extreme loads. The hydrodynamic design provides the chord and twist distributions along the blade length that result in optimal performance of the tidal turbine over its lifetime. The extreme loads, i.e. the extreme flap and edgewise loads that the blade would likely encounter over its lifetime, are associated with extreme tidal flow conditions and are obtained using a computational fluid dynamics (CFD) software. Given the blade external shape and the extreme loads, we use a laminate-theory-based structural design to determine the optimal layout of composite laminas such that the ultimate-strength and buckling-resistance criteria are satisfied at all points in the blade. The structural design approach allows for arbitrary specification of the chord, twist, and airfoil geometry along the blade and an arbitrary number of shear webs. In addition, certain fabrication criteria are imposed, for example, each composite laminate must be an integral multiple of its constituent ply thickness. In the present effort, the structural design uses only static extreme loads; dynamic-loads-based fatigue design will be addressed in the future. Following the blade design, we compute the distributed structural properties, i.e. flap stiffness, edgewise stiffness, torsion stiffness, mass, moments of inertia, elastic-axis offset, and center-of-mass offset along the blade. Such properties are required by hydro-elastic codes to model the tidal current turbine and to perform modal, stability, loads, and response analyses.

Bir, G. S.; Lawson, M. J.; Li, Y.

2011-10-01T23:59:59.000Z

116

Structure-based drug mechanism study and inhibitor design targeting tuberculosis  

E-Print Network [OSTI]

, ethionamide and prothionamide all target InhA, which validates the enzyme as a superb drug target. A structure-based approach was adopted to design new inhibitors targeting InhA, using triclosan as the scaffold. Guided by the InhA-inhibitor complex structures...

Wang, Feng

2009-05-15T23:59:59.000Z

117

Design of fast output sampling feedback control for smart structure model  

Science Journals Connector (OSTI)

In this paper, the problem of modelling and output feedback control design for a smart structural system using piezoelectric material as a sensor/actuator is addressed. The model for a smart cantilever beam is developed by the finite element method. ... Keywords: output feedback, smart structure, vibration control

M. Umapathy; B. Bandyopadhyay

2007-01-01T23:59:59.000Z

118

Portals to an Architecture: Design of a temporary structure with paper tube arches Steven J. Preston  

E-Print Network [OSTI]

2011 Keywords: Architecture Structure Engineering Sculpture Sustainability Paper tubes a b s t r a cPortals to an Architecture: Design of a temporary structure with paper tube arches Steven J t Sustainable recyclable paper and composite materials can be ideal choices for the construction of tempo- rary

Bank, Lawrence C.

119

Key technological issues in LMFBR high-temperature structural design - the US perspective  

SciTech Connect (OSTI)

The purpose of this paper is: (1) to review the key technological issues in LMFBR high-temperature structural design, particularly as they relate to cost reduction; and (2) to provide an overview of activities sponsored by the US Department of Energy to resolve the issues and to establish stable, standardized, and defensible structural design methods and criteria. Specific areas of discussion include: weldments, structural validation tests, simplified design analysis procedures, design procedures for piping, validation of the methodology for notch-like geometries, improved life assessment procedures, thermal striping, extension of the methodology to new materials, and ASME high-temperature Code reform needs. The perceived problems and needs in each area are discussed, and the current status of related US activities is given.

Corum, J.M.

1984-01-01T23:59:59.000Z

120

Hierarchically Porous Graphene as a Lithium-Air Battery Electrode...  

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

Hierarchically Porous Graphene as a Lithium-Air Battery Electrode. Hierarchically Porous Graphene as a Lithium-Air Battery Electrode. Abstract: Functionalized graphene sheets (FGS)...

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Vehicle Technologies Office Merit Review 2014: Hierarchical Assembly...  

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

Hierarchical Assembly of InorganicOrganic Hybrid Si Negative Electrodes Vehicle Technologies Office Merit Review 2014: Hierarchical Assembly of InorganicOrganic Hybrid Si...

122

Incremental Hierarchical Clustering of Text Documents  

E-Print Network [OSTI]

in incremental clustering of text documents as a part of Topic Detection and Tracking initiative ([1], [19], [10Incremental Hierarchical Clustering of Text Documents by Nachiketa Sahoo Adviser: Jamie Callan May 5, 2006 Abstract Incremental hierarchical text document clustering algorithms are important

Gordon, Geoffrey J.

123

Molecular Coordination of Hierarchical Self-Assembly  

E-Print Network [OSTI]

Molecular Coordination of Hierarchical Self-Assembly Technical Report UT-CS-10-662 Bruce J. Mac to self-assemble into multiscale complex hierarchical systems. Keywords: algorithmic assembly, embodied, nano communication, nanofabrication, nanotechnology, Moore's Law, self-assembly, self-organization. 1

MacLennan, Bruce

124

Alternative conceptual design of a magnet support structure for plasma fusion devices of stellarator type  

Science Journals Connector (OSTI)

Engineering design of magnet coil support structures for plasma fusion devices of the stellarator type are at present an important task in stellarator hardware R&D activities. In particular this is one of the basic core components in developing the stellarator's line in view of a robust and reliable fusion reactor. Based on long time experience in design and structural analyses of stellarator magnet systems and their support structure, the authors are proposing in this paper an alternative conceptual design for the magnet support structure. This paper describes the basic assumptions that a conceptual design of a magnet support structure has to fulfil. In this context, essential experiences gathered during manufacturing and assembly of the magnet support structure for a current stellarator fusion device engineered at Max Planck Institute for Plasma Physics are taken into account. The concept provides flexibility in matters of readjustment and positional optimization of the magnet coils during the assembly phase and potentially during the operation. The flexibility during the assembly phase allows a simplification of technical requirements and performance criteria which may result in a reduction of costs and improved reliability of a stellarator based power device.

Nikola Jaksic; Boris Mendelevitch; Jörg Tretter

2011-01-01T23:59:59.000Z

125

Application of truss analogy and stress field methods in the design of offshore concrete structures  

SciTech Connect (OSTI)

This paper summarizes the common design procedure and the design process for offshore concrete structures and describes how stress field theories such as the Modified Compression Field Theory as well as conventional Strut and Tie modeling have been applied in some recent projects. This comprises both sectional analyses, i.e. verification of separate predefined sections and analyses of extracted portions/bodies. The theoretical foundation is briefly presented while main emphasis is put on practical examples and experienced gained.

Hoyland, K.; Haugerud, S.A.; Collins, M.P.

1994-12-31T23:59:59.000Z

126

The hierarchical properties of contact networks in granular packings  

E-Print Network [OSTI]

The topological structure resulting from the network of contacts between grains (contact network) is studied for very large samples of disorderly-packed monosized spheres with densities ranging from 0.58 to 0.64. The hierarchical organization of such a structure is studied by means of a topological map which starts from a given sphere and moves outwards in concentric shells through the contact network. We find that the topological density of disordered sphere packing is larger than the topological density of equivalent lattice sphere packings.

T. Aste; T. J. Senden

2005-04-14T23:59:59.000Z

127

Adaptive Sampling in Hierarchical Simulation  

SciTech Connect (OSTI)

We propose an adaptive sampling methodology for hierarchical multi-scale simulation. The method utilizes a moving kriging interpolation to significantly reduce the number of evaluations of finer-scale response functions to provide essential constitutive information to a coarser-scale simulation model. The underlying interpolation scheme is unstructured and adaptive to handle the transient nature of a simulation. To handle the dynamic construction and searching of a potentially large set of finer-scale response data, we employ a dynamic metric tree database. We study the performance of our adaptive sampling methodology for a two-level multi-scale model involving a coarse-scale finite element simulation and a finer-scale crystal plasticity based constitutive law.

Knap, J; Barton, N R; Hornung, R D; Arsenlis, A; Becker, R; Jefferson, D R

2007-07-09T23:59:59.000Z

128

TileSoft: Sequence Optimization Software For Designing DNA Secondary Structures  

E-Print Network [OSTI]

as self-assembly, utilizing the Watson-Crick self-complementarity. During self- assembly, synthetic DNA- times invoked. In the first step, different sets of synthetic DNA strands are mixed to form small sTileSoft: Sequence Optimization Software For Designing DNA Secondary Structures Peng Yin* Bo Guo

Reif, John H.

129

Structural design for desired eigenfrequencies and mode shapes using topology optimization  

Science Journals Connector (OSTI)

A technique is proposed for determining the material distribution of a structure to obtain desired eigenmode shapes for problems of maximizing the fundamental eigenfrequency. The design objective is achieved using the solid isotropic method with penalization ... Keywords: Modal assurance criterion, Mode shape, SIMP, Topology optimization

T. D. Tsai; C. C. Cheng

2013-05-01T23:59:59.000Z

130

MOCHA: A Model Checking Tool that Exploits Design Structure L. de Alfaro R. Grosu  

E-Print Network [OSTI]

INTRODUCTION Model checking is emerging as a practical tool for automated debugging of embedded software (seeMOCHA: A Model Checking Tool that Exploits Design Structure R. Alur L. de Alfaro¡ R. Grosu ¢ T [7] for a survey, and [12, 11] for sample model checkers, and [8] for applications to software

de Alfaro, Luca

131

MOCHA: A Model Checking Tool that Exploits Design Structure L. de Alfaro  

E-Print Network [OSTI]

INTRODUCTION Model checking is emerging as a practical tool for automated debugging of embedded software (seeMOCHA: A Model Checking Tool that Exploits Design Structure R. Alur L. de Alfaro R. Grosu T [7] for a survey, and [12, 11] for sample model checkers, and [8] for applications to software

Grosu, Radu

132

INTERNATIONAL DESIGN STRUCTURE MATRIX CONFERENCE, DSM'09 12 13 OCTOBER 2009, GREENVILLE, SOUTH CAROLINA, USA  

E-Print Network [OSTI]

DSM'09 11 TH INTERNATIONAL DESIGN STRUCTURE MATRIX CONFERENCE, DSM'09 12 ­ 13 OCTOBER 2009, GREENVILLE, SOUTH CAROLINA, USA DISTRIBUTED MODELING OF COMPONENT DSM Andrew Tilstra1 , 1 and 1 1 The University of Texas at Austin Keywords: Component DSM, HD-DSM, interaction types, distributed modeling

Seepersad, Carolyn Conner

133

Designing a User Interface for Interactive Retrieval of Structured Documents --Lessons  

E-Print Network [OSTI]

Designing a User Interface for Interactive Retrieval of Structured Documents -- Lessons Learned from the INEX Interactive Track Saadia Malik1 , Claus-Peter Klas1 , Norbert Fuhr1 , Birger Larsen2 of London, United Kingdom tassos@dcs.qmul.ac.uk Abstract The interactive track of the Initiative

Tombros, Anastasios

134

A Structural Analysis of Vehicle Design Responses to Corporate Average Fuel Economy Policy  

E-Print Network [OSTI]

sensitive to fuel prices than to CAFE standards, with the 2007 average fuel price implying that current CAFE09-0588 A Structural Analysis of Vehicle Design Responses to Corporate Average Fuel Economy Policy, Michalek, and Hendrickson 1 ABSTRACT The U.S. Corporate Average Fuel Economy (CAFE) regulations, which aim

Michalek, Jeremy J.

135

Author's personal copy Reliability-based design and optimization of adaptive marine structures  

E-Print Network [OSTI]

to increase the fuel-efficiency of marine propellers over a range of operating conditions. Similar passiveAuthor's personal copy Reliability-based design and optimization of adaptive marine structures Y.L. Young a,*, J.W. Baker c , M.R. Motley b a Department of Naval Architecture and Marine Engineering

Baker, Jack W.

136

Control structure design for stabilizing unstable gas-lift oil wells  

E-Print Network [OSTI]

Control structure design for stabilizing unstable gas-lift oil wells Esmaeil Jahanshahi, Sigurd valve is the recommended solution to prevent casing-heading instability in gas-lifted oil wells. Focus to be effective to stabilize this system. Keywords: Oil production, two-phase flow, gas-lift, controllability, H

Skogestad, Sigurd

137

The design, installation, and performance of a berm-supported exploration structure in the Beaufort Sea  

SciTech Connect (OSTI)

The design, installation, and performance of a berm-supported exploration structure in a dynamic ice environment is presented. Details are provided on design considerations which include horizontal ice loads, wave loads, seismic considerations, foundation characteristics and extreme temperatures. The development of specifications and installation techniques to account for these design concerns is presented. A case history is presented which includes a discussion of on-site modifications to the idealized placement technique, which were necessitated by extreme ice conditions. The success of this modified placement technique is confirmed through a review of the unit performance during the drilling season, and the response of the structure to dynamic ice and drilling-related activity is examined.

Hewitt, K.J.; Berzing, W.E.; Fitzpatrick, J.P.; Hogeboom, H.G.

1985-06-01T23:59:59.000Z

138

Extreme wind climate modeling of some locations in India for the specification of the design wind speed of structures  

Science Journals Connector (OSTI)

The wind load on a structure is proportional to the square of the wind speed. Extreme wind climate modeling should be required for specifying the design wind speed of structures. Extreme wind speeds for a storm t...

Arnab Sarkar; Navneet Kumar; Debojyoti Mitra

2014-06-01T23:59:59.000Z

139

Error Modeling for Hierarchical Lossless Image Compression  

E-Print Network [OSTI]

We present a new method for error modeling applicable to the MLP algorithm for hierarchical lossless image compression. This method, based on a concept called the variability index, provides accurate models for pixel ...

Howard, Paul G.; Vitter, Jeffrey Scott

1992-01-01T23:59:59.000Z

140

Survey for Safety Software Used in Design of Structures, Systems, and Components  

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

Design Software Survey September 2003 1 Design Software Survey September 2003 1 Survey of Safety Software Used in Design of Structures, Systems, and Components 1. Introduction The Department's Implementation Plan for Software Quality Assurance (SQA) that was developed in response to Defense Nuclear Facilities Safety Board Recommendation 2002-01, Quality Assurance for Safety-Related Software, includes a commitment (4.2.1.5) to conduct a survey of design codes currently in use to determine if any should be included as part of the toolbox codes. The toolbox codes are a small number of standard computer models (codes) supporting DOE safety analysis that have widespread use and appropriate qualification. Generally, the toolbox codes will have been developed and maintained within the DOE complex. However, the toolbox may also include

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


141

A structural analysis of vehicle design responses to Corporate Average Fuel Economy policy  

Science Journals Connector (OSTI)

The US Corporate Average Fuel Economy (CAFE) regulations are intended to influence automaker vehicle design and pricing choices. CAFE policy has been in effect for the past three decades, and new legislation has raised standards significantly. We present a structural analysis of automaker responses to generic CAFE policies. We depart from prior CAFE analyses by focusing on vehicle design responses in long-run oligopolistic equilibrium, and we view vehicles as differentiated products, taking demand as a general function of price and product attributes. We find that under general cost, demand, and performance functions, single-product profit maximizing firm responses to CAFE standards follow a distinct pattern: firms ignore CAFE when the standard is low, treat CAFE as a vehicle design constraint for moderate standards, and violate CAFE when the standard is high. Further, the point and extent of first violation depends upon the penalty for violation, and the corresponding vehicle design is independent of further standard increases. Thus, increasing CAFE standards will eventually have no further impact on vehicle design if the penalty for violation is also not increased. We implement a case study by incorporating vehicle physics simulation, vehicle manufacturing and technology cost models, and a mixed logit demand model to examine equilibrium powertrain design and price decisions for a fixed vehicle body. Results indicate that equilibrium vehicle design is not bound by current CAFE standards, and vehicle design decisions are directly determined by market competition and consumer preferences. We find that with increased fuel economy standards, a higher violation penalty than the current stagnant penalty is needed to cause firms to increase their design fuel economy at equilibrium. However, the maximum attainable improvement can be modest even if the penalty is doubled. We also find that firms’ design responses are more sensitive to variation in fuel prices than to CAFE standards, within the examined ranges.

Ching-Shin Norman Shiau; Jeremy J. Michalek; Chris T. Hendrickson

2009-01-01T23:59:59.000Z

142

Design and prototype of a minimal cost tracking photovoltaic array structure  

SciTech Connect (OSTI)

This paper presents research results to develop a minimal cost photovoltaic array tracking structure. Objectives of the project were to (1) employ a modular design based upon multiple point foundations, off-site assembly, and commercially available materials; (2) offer performance improvements over horizontal one-axis trackers by tilting the axis of rotation; (3) verify design performance, and cost goals through prototype construction and operation. Each of these objectives was accomplished beginning with design activities in early 1993 and culminating with construction of commercial trackers in early 1995. The Delta Trackers{trademark} offer dramatic reduction in PV energy production costs ({cents}/kWh) through lower balance-of-system costs and improved performance.

Shugar, D.S. [Advanced Photovoltaic Systems, Inc., San Bruno, CA (United States); Matlin, R.W. [Enertech Engineering, Lexington, MA (United States)

1995-10-01T23:59:59.000Z

143

High quantum efficiency photocathode simulation for the investigation of novel structured designs  

SciTech Connect (OSTI)

A computer model in CST Studio Suite has been developed to evaluate several novel geometrically enhanced photocathode designs. This work was aimed at identifying a structure that would increase the total electron yield by a factor of two or greater in the 1–30 keV range. The modeling software was used to simulate the electric field and generate particle tracking for several potential structures. The final photocathode structure has been tailored to meet a set of detector performance requirements, namely, a spatial resolution of <40 ?m and a temporal spread of 1–10 ps. We present the details of the geometrically enhanced photocathode model and resulting static field and electron emission characteristics.

Opachich, Y. P., E-mail: opachiyp@nv.doe.gov; Ross, P. W.; Huffman, E.; Koch, J. A. [National Security Technologies LLC, Livermore, California 94550 (United States); MacPhee, A. G.; Nagel, S. R.; Bell, P. M.; Bradley, D. K.; Landen, O. L. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Hilsabeck, T. J. [General Atomics, San Diego, California 92121 (United States)

2014-11-15T23:59:59.000Z

144

Design and performance of a terahertz photoconductive antenna with nano-crossfinger structure  

E-Print Network [OSTI]

Improving terahertz(THz) radiation power and/or optics-to-THz efficiency of the photoconductive antenna(PCA) is widely recognized as one of the most attractive and challenging missions in THz community. In this work, the design of a THz PCA with nano-crossfinger structure in the active region is proposed. The THz radiation properties of this PCA was demonstrated by finite-difference-time-domain method based on full-wave model. As a comparison, the PCA with nano-finger structure that promises enhanced THz radiation than conventional PCA was also analyzed numerically. The results indicate that the nano-crossfinger PCA can radiate even higher THz field than the nano-finger PCA, primarily due to the enhanced bias field within the nano-structure.

Zhang, Jitao

2014-01-01T23:59:59.000Z

145

Categories and Functional Units: An Infinite Hierarchical Model for Brain Activations  

E-Print Network [OSTI]

Categories and Functional Units: An Infinite Hierarchical Model for Brain Activations Danial present a model that describes the structure in the responses of different brain areas to a set of stimuli encodes the relationship between brain activations and fMRI time courses. A variational inference

Golland, Polina

146

Short communication Hierarchical SiOx nanoconifers for Li-ion battery anodes with  

E-Print Network [OSTI]

oxide Li rechargeable battery Anode Nanoconifer Nanowire Thermal evaporation a b s t r a c t Silicon subShort communication Hierarchical SiOx nanoconifers for Li-ion battery anodes with structural through a simple thermal evaporation process.

Jo, Moon-Ho

147

Structure-guided inhibitor design for human FAAH by interspecies active site conversion  

SciTech Connect (OSTI)

The integral membrane enzyme fatty acid amide hydrolase (FAAH) hydrolyzes the endocannabinoid anandamide and related amidated signaling lipids. Genetic or pharmacological inactivation of FAAH produces analgesic, anxiolytic, and antiinflammatory phenotypes but not the undesirable side effects of direct cannabinoid receptor agonists, indicating that FAAH may be a promising therapeutic target. Structure-based inhibitor design has, however, been hampered by difficulties in expressing the human FAAH enzyme. Here, we address this problem by interconverting the active sites of rat and human FAAH using site-directed mutagenesis. The resulting humanized rat (h/r) FAAH protein exhibits the inhibitor sensitivity profiles of human FAAH but maintains the high-expression yield of the rat enzyme. We report a 2.75-{angstrom} crystal structure of h/rFAAH complexed with an inhibitor, N-phenyl-4-(quinolin-3-ylmethyl)piperidine-1-carboxamide (PF-750), that shows strong preference for human FAAH. This structure offers compelling insights to explain the species selectivity of FAAH inhibitors, which should guide future drug design programs.

Mileni, Mauro; Johnson, Douglas S.; Wang, Zhigang; Everdeen, Daniel S.; Liimatta, Marya; Pabst, Brandon; Bhattacharya, Keshab; Nugent, Richard A.; Kamtekar, Satwik; Cravatt, Benjamin F.; Ahn, Kay; Stevens, Raymond C. (Scripps); (Pfizer)

2008-11-24T23:59:59.000Z

148

Design of titania nanotube structures by focused laser beam direct writing  

SciTech Connect (OSTI)

In this work, we report on electrochemical fabrication of titania films consisting of nanotubes (NTs) and their treatment by focused laser beam. The results of sample characterization by optical and scanning electron microscopy, cathodoluminescence imaging, and Raman scattering scanning spectroscopy are compared to those inherent to specimens subjected to thermal treatment in a furnace. The obtained data demonstrate possibilities for controlling crystallographic structure of TiO{sub 2} NTs by focused laser beam direct writing. These findings open new prospects for the design and fabrication of spatial architectures based on titania nanotubes.

Enachi, Mihai [National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare av. 168, Chisinau, MD-2004 (Moldova, Republic of); Stevens-Kalceff, Marion A. [School of Physics, University of New South Wales, Sydney, New South Wales 2052 (Australia); Sarua, Andrei [H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL (United Kingdom); Ursaki, Veaceslav [Institute of Applied Physics, Academy of Sciences of Moldova, Chisinau, MD-2028 (Moldova, Republic of); Tiginyanu, Ion, E-mail: tiginyanu@asm.md [National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare av. 168, Chisinau, MD-2004 (Moldova, Republic of); Institute of Electronic Engineering and Nanotechnologies, Academy of Sciences of Moldova, Chisinau, MD-2028 (Moldova, Republic of)

2013-12-21T23:59:59.000Z

149

A Hierarchical Control Architecture for a PEBB-Based ILC Marx Modulator  

SciTech Connect (OSTI)

The idea of building power conversion systems around Power Electronic Building Blocks (PEBBs) was initiated by the U.S. Office of Naval Research in the mid 1990s. A PEBB-based design approach is advantageous in terms of power density, modularity, reliability, and serviceability. It is obvious that this approach has much appeal for pulsed power conversion including the International Linear Collider (ILC) klystron modulator application. A hierarchical control architecture has the inherent capability to support the integration of PEBBs. This has already been successfully demonstrated in a number of industrial applications in the recent past. This paper outlines the underlying concepts of a hierarchical control architecture for a PEBB-based Marx-topology ILC klystron modulator. The control in PEBB-based power conversion systems can be functionally partitioned into (three) hierarchical layers; system layer, application layer, and PEBB layer. This has been adopted here. Based on such a hierarchical partition, the interfaces are clearly identified and defined and, consequently, are easily characterised. A conceptual design of the hardware manager, executing low-level hardware oriented tasks, is detailed. In addition, the idea of prognostics is briefly discussed.

Macken, K.; Burkhart, C.; Larsen, R.; Nguyen, M.N.; Olsen, J.; /SLAC

2011-12-15T23:59:59.000Z

150

Critical aspects of hierarchical protein folding  

E-Print Network [OSTI]

We argue that the first order folding transitions of proteins observed at physiological chemical conditions end in a critical point for a given temperature and chemical potential of the surrounding water. We investigate this critical point using a hierarchical Hamiltonian and determine its universality class. This class differs qualitatively from those of other known models.

Alex Hansen; Mogens H. Jensen; Kim Sneppen; Giovanni Zocchi

1998-01-13T23:59:59.000Z

151

Synthesis Method for Hierarchical Interface-based  

E-Print Network [OSTI]

Synthesis Method for Hierarchical Interface-based Supervisory Control Version 1.01 By Pengcheng DaiMaster University c Copyright by Pengcheng Dai, April 2006 #12;MASTER OF APPLIED SCIENCE(2006) McMaster University-based Supervisory Control AUTHOR: Pengcheng Dai, B.Eng.(Tianjin University) SUPERVISOR: Dr. Ryan J. Leduc NUMBER

Leduc, Ryan

152

Hierarchical resilience with lightweight threads.  

SciTech Connect (OSTI)

This paper proposes methodology for providing robustness and resilience for a highly threaded distributed- and shared-memory environment based on well-defined inputs and outputs to lightweight tasks. These inputs and outputs form a failure 'barrier', allowing tasks to be restarted or duplicated as necessary. These barriers must be expanded based on task behavior, such as communication between tasks, but do not prohibit any given behavior. One of the trends in high-performance computing codes seems to be a trend toward self-contained functions that mimic functional programming. Software designers are trending toward a model of software design where their core functions are specified in side-effect free or low-side-effect ways, wherein the inputs and outputs of the functions are well-defined. This provides the ability to copy the inputs to wherever they need to be - whether that's the other side of the PCI bus or the other side of the network - do work on that input using local memory, and then copy the outputs back (as needed). This design pattern is popular among new distributed threading environment designs. Such designs include the Barcelona STARS system, distributed OpenMP systems, the Habanero-C and Habanero-Java systems from Vivek Sarkar at Rice University, the HPX/ParalleX model from LSU, as well as our own Scalable Parallel Runtime effort (SPR) and the Trilinos stateless kernels. This design pattern is also shared by CUDA and several OpenMP extensions for GPU-type accelerators (e.g. the PGI OpenMP extensions).

Wheeler, Kyle Bruce

2011-10-01T23:59:59.000Z

153

Semantic Data Integration in Manufacturing Design with a Case Study of Structural Analysis.  

E-Print Network [OSTI]

??Product designers produce the design of the product to satisfy the product specifications by applying their own design intent. Due to the lack of semantic… (more)

Sarkar, Arkopaul

2014-01-01T23:59:59.000Z

154

Design  

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

Design Design of a Multithreaded Barnes-Hut Algorithm for Multicore Clusters Technical Report Junchao Zhang and Babak Behzad Department of Computer Science, University of Illinois at Urbana-Champaign {jczhang, bbehza2}@illinois.edu Marc Snir Department of Computer Science, University of Illinois at Urbana-Champaign and MCS Division, Argonne National Laboratory snir@anl.gov Abstract We describe in this paper an implementation of the Barnes-Hut al- gorithm on multicore clusters. Based on a partitioned global ad- dress space (PGAS) library, the design integrates intranode mul- tithreading and internode one-sided communication, exemplifying a PGAS + X programming style. Within a node, the computation is decomposed into tasks (subtasks), and multitasking is used to hide network latency. We study the tradeoffs between locality in private caches and locality in shared caches

155

Hierarchical and modular fuzzy architecture for multiple mobile robots  

Science Journals Connector (OSTI)

Implementation of autonomous behaviours in mobile robots, using fuzzy logic control, requires formulation of rules that are collectively responsible for necessary levels of intelligence. This collection of rules can be conveniently decomposed and effectively implemented as a hierarchy of fuzzy behaviours. For this purpose, a hierarchical approach to the incremental design of complex robot behaviours based on fuzzy logic is proposed, since the primitive behaviours of individual robots have different aims and this may cause conflict. Some of these behaviours are competitive and some of them are cooperative. This paper also proposes a new behaviour coordination system between the competitive and cooperative methodologies with the aim of taking the advantages of robustness and optimised robot trajectories from both approaches. Simulated and real experiments have been conducted on a team of mobile robots performing a proof-of-concept dynamic target tracking task. The results show an improvement in the overall group performance even in cluttered environment.

M.H. Awadalla

2009-01-01T23:59:59.000Z

156

SAFE—A hierarchical framework for assessing the sustainability of agricultural systems  

Science Journals Connector (OSTI)

Sustainable development and the definition of indicators to assess progress towards sustainability have become a high priority in scientific research and on policy agendas. In this paper, we propose a consistent and comprehensive framework of principles, criteria and indicators (PC&I) for sustainability assessment of agricultural systems, referred to as the Sustainability Assessment of Farming and the Environment (SAFE) framework. In addition we formulate consistent and objective approaches for indicator identification and selection. The framework is designed for three spatial levels: the parcel level, the farm level and a higher spatial level that can be the landscape, the region or the state. The SAFE framework is hierarchical as it is composed of principles, criteria, indicators and reference values in a structured way. Principles are related to the multiple functions of the agro-ecosystem, which go clearly beyond the production function alone. The multifunctional character of the agro-ecosystem encompasses the three pillars of sustainability: the environmental, economic and social pillars. Indicators and reference values are the end-products of the framework. They are the operational tools that are used for evaluating the sustainability of the agro-ecosystems. The proposed analytical framework is not intended to find a common solution for sustainability in agriculture as a whole, but to serve as an assessment tool for the identification, the development and the evaluation of agricultural production systems, techniques and policies.

N. Van Cauwenbergh; K. Biala; C. Bielders; V. Brouckaert; L. Franchois; V. Garcia Cidad; M. Hermy; E. Mathijs; B. Muys; J. Reijnders; X. Sauvenier; J. Valckx; M. Vanclooster; B. Van der Veken; E. Wauters; A. Peeters

2007-01-01T23:59:59.000Z

157

Harnessing fluid-structure interactions to design self-regulating acoustic metamaterials  

SciTech Connect (OSTI)

The design of phononic crystals and acoustic metamaterials with tunable and adaptive wave properties remains one of the outstanding challenges for the development of next generation acoustic devices. We report on the numerical and experimental demonstration of a locally resonant acoustic metamaterial with dispersion characteristics, which autonomously adapt in response to changes of an incident aerodynamic flow. The metamaterial consists of a slender beam featuring a periodic array or airfoil-shaped masses supported by a linear and torsional springs. The resonance characteristics of the airfoils lead to strong attenuation at frequencies defined by the properties of the airfoils and the speed on the incident fluid. The proposed concept expands the ability of existing acoustic bandgap materials to autonomously adapt their dispersion properties through fluid-structure interactions, and has the potential to dramatically impact a variety of applications, such as robotics, civil infrastructures, and defense systems.

Casadei, Filippo [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Bertoldi, Katia [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Kavli Institute for Bionano Science, Harvard University, Cambridge, Massachusetts 02138 (United States)

2014-01-21T23:59:59.000Z

158

Uniform hierarchical SnS microspheres: Solvothermal synthesis and lithium ion storage performance  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: • Uniform hierarchical SnS microspheres via solvothermal reaction. • The formation process was investigated in detail. • The obtained hierarchical SnS microspheres exhibit superior capacity (1650 mAh g{sup ?1}) when used as lithium battery for the hierarchical microsphere structure. - Abstract: Hierarchical SnS microspheres have been successfully synthesized by a mild solvothermal process using poly(vinylpyrrolidone) as surfactant in this work. The morphology and composition of the microspheres were investigated by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The influence of reaction parameters, such as sulfur sources, reaction temperature and the concentration of PVP, on the final morphology of the products are investigated. On the basis of time-dependent experiments, the growth mechanism has also been proposed. The specific surface area of the 3D hierarchitectured SnS microspheres were investigated by using nitrogen adsorption and desorption isotherms. Lithium ion storage performances of the synthesized materials as anodes for Lithium-ion battery were investigated in detail and it exhibits excellent electrochemical properties.

Fang, Zhen, E-mail: fzfscn@mail.ahnu.edu.cn; Wang, Qin; Wang, Xiaoqing; Fan, Fan; Wang, Chenyan; Zhang, Xiaojun

2013-11-15T23:59:59.000Z

159

E-Print Network 3.0 - aircraft structural design Sample Search...  

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

-equipped aircraft. The paper begins with a brief review of a method for designing a scheduling system that assigns... , control- lers could get aircraft over a designated...

160

Topologies to geometries in protein folding: Hierarchical and nonhierarchical scenarios  

E-Print Network [OSTI]

Topologies to geometries in protein folding: Hierarchical and nonhierarchical scenarios Ariel Ferna presents a method to portray protein folding dynamics at a coarse resolution, based on a pattern

Berry, R. Stephen

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


161

Model-Based Hierarchical Optimal Control Design for HVAC Systems  

E-Print Network [OSTI]

sun on the external sides of the walls in deriving the differential equations of the temperature distribution

Maasoumy, Mehdi; Pinto, Alessandro; Sangiovanni-Vincentelli, Alberto

2014-01-01T23:59:59.000Z

162

Design and Evaluation of Hierarchical Rings with Deflection Routing  

E-Print Network [OSTI]

that enable us to mostly maintain the simplicity of traditional simple ring topologies while providing higher of several MUXes to allow traffic to enter and leave, and one pipeline register. Its latency is typically and commercial multicore processors have utilized ring

Mutlu, Onur

163

Hierarchical Modeling for Population-Based Heat Exchanger Design  

E-Print Network [OSTI]

layer," Journal of Fluids Engineering, 117(1), pp. 181-journal. Ser. 2, Fluids engineering, heat transfer, power,Networks," Journal of Fluids Engineering, 125(6), pp. 1051-

Geb, David

2013-01-01T23:59:59.000Z

164

THE TRIPLY ECLIPSING HIERARCHICAL TRIPLE STAR KIC002856960  

SciTech Connect (OSTI)

In a recent study, Armstrong et al. presented an eclipsing binary star of about 6.2 hr period with transit-like tertiary signals occurring every 204.2 days in the Kepler public data of KIC002856960 and proposed three possible hierarchical structures: (AB)b, (AB)C, and A(BC). We analyzed the Kepler light curve by including a third light source and one starspot on each binary component. The results represent that the close eclipsing pair is in a low-mass eccentric-orbit, detached configuration. Based on 123 eclipse timings calculated from the Wilson-Devinney binary model, a period study of the close binary reveals that the orbital period has experienced a sinusoidal variation with a period and a semi-amplitude of 205 {+-} 2 days and 0.0021 {+-} 0.0002 days, respectively. The period variation would be produced by the light-travel-time effect due to a gravitationally bound third body with a minimum mass of M {sub 3}sin i {sub 3} = 0.76 M {sub Sun} in an eccentric orbit of e {sub 3} = 0.61. This is consistent with the presence of third light found in our light curve solution and the tertiary signal of 204.2 day period most likely arises from the K-type star crossed by the close eclipsing binary. Then, KIC002856960 is a triply eclipsing hierarchical system, A(BC), consisting of a close binary with two M-type dwarfs and a more massive K-type component. The presence of the third star may have played an important role in the formation and evolution of the close pair, which may ultimately evolve into a contact system by angular momentum loss.

Lee, Jae Woo; Kim, Seung-Lee; Lee, Chung-Uk; Lee, Byeong-Cheol; Park, Byeong-Gon; Hinse, Tobias Cornelius, E-mail: jwlee@kasi.re.kr, E-mail: slkim@kasi.re.kr, E-mail: leecu@kasi.re.kr, E-mail: bclee@kasi.re.kr, E-mail: bgpark@kasi.re.kr, E-mail: tchinse@gmail.com [Korea Astronomy and Space Science Institute, Daejon 305-348 (Korea, Republic of)

2013-02-15T23:59:59.000Z

165

Cosmological evolution and hierarchical galaxy formation  

E-Print Network [OSTI]

We provide a new multi-waveband compilation of the data describing the cosmological evolution of quasars, and discuss a model that attributes the evolution to variation in the rate of merging between dark halos in a hierarchical universe. We present a new Press-Schechter calculation of the expected merger rate and show that this can reproduce the principal features of the evolution. We also show that the evolution in the star-formation history of the universe is well-described by this model.

L. Miller; W. J. Percival

1998-09-24T23:59:59.000Z

166

Structural Optimization 13, 23-28 (~) Springer-Verlag 1997 Optimal design of 1-3 composite piezoelectrics  

E-Print Network [OSTI]

of a hydrophone composite consisting of parallel piezoceramic rods that are embedded in a porous polymer matrix hydrophone sensitivity can be achieved by making a composite consisting of piezo- ceramic rods in a softStructural Optimization 13, 23-28 (~) Springer-Verlag 1997 Optimal design of 1-3 composite

Torquato, Salvatore

167

A new approach to the design and optimisation of support structures in additive manufacturing  

Science Journals Connector (OSTI)

Support structures are required in several additive manufacturing (AM) processes to sustain overhanging parts,...

G. Strano; L. Hao; R. M. Everson…

2013-06-01T23:59:59.000Z

168

Hierarchical clustering using correlation metric and spatial continuity constraint  

DOE Patents [OSTI]

Large data sets are analyzed by hierarchical clustering using correlation as a similarity measure. This provides results that are superior to those obtained using a Euclidean distance similarity measure. A spatial continuity constraint may be applied in hierarchical clustering analysis of images.

Stork, Christopher L.; Brewer, Luke N.

2012-10-02T23:59:59.000Z

169

AN OPERATOR EXPERIENCE WITH A HIERARCHICAL REALTIME CONTROL SYSTEM (RCS)  

E-Print Network [OSTI]

AN OPERATOR EXPERIENCE WITH A HIERARCHICAL REAL­TIME CONTROL SYSTEM (RCS) Hui­Min Huang Mechanical@cme.nist.gov ABSTRACT The issue of operator interface in the RCS hierarchical control systems is the focus operators to be involved in system operations in different degrees. In some situations, the operators

170

Physical Similitude in Hierarchical Engineered Systems  

E-Print Network [OSTI]

high exit friction. Nuclear Engineering and Design, [23] R.test facility (apex). Nuclear Engineering and Design, 186:future reactor systems. Nuclear Engineering and Design, 235:

Blandford, Edward David

2010-01-01T23:59:59.000Z

171

Hierarchical 3D micro-/nano-V2O5 (vanadium pentoxide) spheres as cathode materials for high-energy and high-power lithium ion-batteries  

Science Journals Connector (OSTI)

Abstract We facilely fabricate hierarchical 3D microspheres consisting of 2D V2O5 (vanadium pentoxide) nanosheets by a low temperature hydrothermal method and use it to structure hierarchical 3D micro-/nano-LIBs (lithium ion batteries) cathode. This is a template-free and facile method easy for scale-up production of hierarchical 3D micro-/nano-structured V2O5 spheres beneficial for high performance \\{LIBs\\} applications. Such a facile method resulted hierarchical 3D micro-/nano-V2O5 possess many unique features good for LIBs: (1) 2D V2O5 nanosheets facilitate the Li+ diffusions and electron transports; (2) hierarchical 3D micro-/nano-cathode structure built up by V2O5 nanosheet spheres will lead to the close and sufficient contact between electrolytes and activate materials and at the same time will create buffer volume to accommodate the volume change during discharging/charging process; and (3) micro-scale V2O5 spheres are easy to result in high cell packing density beneficial for high power battery. As revealed by the experimental results, the micro-/nano-V2O5 electrode demonstrates high initial discharge and charge capacities with no irreversible loss, high rate capacities at different currents and long-lasting lifespan. The high-energy and high-power performances of the micro-/nano-V2O5 electrode is ascribed to the unique hierarchical micro-/nano-structure merits of V2O5 spheres as abovementioned. In view of the advantages of facile fabrication method and unique features of 3D micro-/nano-V2O5 spheres for high power and high energy LIB battery, it is of great significance to beneficially broaden the applications of high-energy and high-power \\{LIBs\\} with creating novel hierarchical micro-/nano-structured V2O5 cathode materials.

Hongwei Bai; Zhaoyang Liu; Darren Delai Sun; Siew Hwa Chan

2014-01-01T23:59:59.000Z

172

Federal and State Structures to Support Financing Utility-Scale Solar Projects and the Business Models Designed to Utilize Them  

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

Federal and State Structures to Federal and State Structures to Support Financing Utility-Scale Solar Projects and the Business Models Designed to Utilize Them Michael Mendelsohn and Claire Kreycik Technical Report NREL/TP-6A20-48685 April 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Federal and State Structures to Support Financing Utility-Scale Solar Projects and the Business Models Designed to Utilize Them Michael Mendelsohn and Claire Kreycik Prepared under Task No. CP09.2320

173

Poster NONOVERLAP SOURCE/DRAIN-TO-GATE NANO-CMOS STRUCTURE FOR LOW LEAKAGE DRAM DESIGN  

E-Print Network [OSTI]

shown in Fig.1 using SILVACO. In this structure, the wide nonoverlap region formed by spacer suppresses

Seunghyun Song; Kangsung Lee; Yoonha Jeong

174

Phase-transient hierarchical turbulence as an energy correlation generator of blazar light curves  

E-Print Network [OSTI]

Hierarchical turbulent structure constituting a jet is considered to reproduce energy-dependent variability in blazars, particularly, the correlation between X- and gamma-ray light curves measured in the TeV blazar Markarian 421. The scale-invariant filaments are featured by the ordered magnetic fields that involve hydromagnetic fluctuations serving as electron scatterers for diffusive shock acceleration, and the spatial size scales are identified with the local maximum electron energies, which are reflected in the synchrotron spectral energy distribution (SED) above the near-infrared/optical break. The structural transition of filaments is found to be responsible for the observed change of spectral hysteresis.

Mitsuru Honda

2008-02-06T23:59:59.000Z

175

Critical behavior of hierarchical Ising models  

Science Journals Connector (OSTI)

We consider the critical behavior of two-dimensional layered Ising models where the exchange couplings between neighboring layers follow hierarchical sequences. The perturbation caused by the nonperiodicity could be irrelevant, relevant, or marginal. For marginal sequences we have performed a detailed study, which involved analytical and numerical calculations of different surface and bulk critical quantities in the two-dimensional classical as well as in the one-dimensional quantum version of the model. The critical exponents are found to vary continuously with the strength of the modulation, while close to the critical point the system is essentially anisotropic: the correlation length is diverging with different exponents along and perpendicular to the layers.

Ferenc Iglói; Péter Lajkó; Ferenc Szalma

1995-09-01T23:59:59.000Z

176

Evaluation of hierarchical forecasting for substitutable products  

Science Journals Connector (OSTI)

This paper addresses hierarchical forecasting in a production planning environment. Specifically, we examine the relative effectiveness of Top-Down (TD) and Bottom-Up (BU) strategies for forecasting the demand for a substitutable product (which belongs to a family) as well as the demand for the product family under different types of family demand processes. Through a simulation study, it is revealed that the TD strategy consistently outperforms the BU strategy for forecasting product family demand. The relative superiority of the TD strategy further improves by as much as 52% as the product demand variability increases and the degree of substitutability between the products decreases. This phenomenon, however, is not always true for forecasting the demand for the products within the family. In this case, it is found that there are a few situations wherein the BU strategy marginally outperforms the TD strategy, especially when the product demand variability is high and the degree of product substitutability is low.

S. Viswanathan; Handik Widiarta; R. Piplani

2008-01-01T23:59:59.000Z

177

Abundance ratios in hierarchical galaxy formation  

E-Print Network [OSTI]

The chemical enrichment and stellar abundance ratios of galaxies which form in a hierarchical clustering scheme are calculated. For this purpose I adopt the star formation histories (SFH) as they are delivered by semi-analytic models in Kauffmann (1996}. It turns out that the average SFH of cluster ellipticals does not yield globally alpha-enhanced stellar populations. The star burst that occurs when the elliptical forms in the major merger plays therefore a crucial role in producing alpha-enhancement. Only under the assumption that the IMF is significantly flattened with respect to the Salpeter value during the burst, a Mg/Fe overabundant population can be obtained. In particular for the interpretation of radial gradients in metallicity and alpha-enhancement, the mixing of global and burst populations are of great importance. The model predicts bright field galaxies to be less alpha-enhanced than their counterparts in clusters.

D. Thomas

1999-01-18T23:59:59.000Z

178

Comparison of two Self-Organization and Hierarchical Routing Protocols for Ad Hoc Networks  

E-Print Network [OSTI]

Comparison of two Self-Organization and Hierarchical Routing Protocols for Ad Hoc Networks Bet. In this article, we compare two self-organization and hierarchical rout- ing protocols for ad hoc networks-organization and hierarchical routing in ad hoc networks. keywords: ad hoc networks, hierarchical routing, DHT, comparison

Paris-Sud XI, Université de

179

Water flow processes in a soil column with a cylindrical macropore: Experiment and hierarchical modeling  

E-Print Network [OSTI]

interdomain water transfer could be estimated using mass balance calculations. In a hierarchical modeling

Mohanty, Binayak P.

180

Structural Design Considerations for Tubular Power Tower Receivers Operating at 650 Degrees C: Preprint  

SciTech Connect (OSTI)

Research of advanced power cycles has shown supercritical carbon dioxide power cycles may have thermal efficiency benefits relative to steam cycles at temperatures around 500 - 700 degrees C. To realize these benefits for CSP, it is necessary to increase the maximum outlet temperature of current tower designs. Research at NREL is investigating a concept that uses high-pressure supercritical carbon dioxide as the heat transfer fluid to achieve a 650 degrees C receiver outlet temperature. At these operating conditions, creep becomes an important factor in the design of a tubular receiver and contemporary design assumptions for both solar and traditional boiler applications must be revisited and revised. This paper discusses lessons learned for high-pressure, high-temperature tubular receiver design. An analysis of a simplified receiver tube is discussed, and the results show the limiting stress mechanisms in the tube and the impact on the maximum allowable flux as design parameters vary. Results of this preliminary analysis indicate an underlying trade-off between tube thickness and the maximum allowable flux on the tube. Future work will expand the scope of design variables considered and attempt to optimize the design based on cost and performance metrics.

Neises, T. W.; Wagner, M. J.; Gray, A. K.

2014-04-01T23:59:59.000Z

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


181

Wind Pressure Resistance of Walls with Exterior Rigid Foam: Structural Performance Testing and Development of Design Specifications  

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

Wind Pressure Resistance of Wind Pressure Resistance of Walls with Exterior Rigid Foam: Structural Performance Testing and Development of Design Specifications Building America Stakeholder Meeting February 2012 2 Gaps and Barriers  Wind pressure resistance of multi- layered walls with exterior rigid foam * Performance characteristics * Capacity * Limitations * Design method * Design specification 3 Market Implications  Walls with exterior rigid foam  2012 IECC - Climate Zones 3 and higher  Wall systems:  Claddings and their attachments  Interior finishes  Air sealing, air barriers  Cavity insulation 4 Research Tasks  Laboratory Testing of Wall Assemblies under dynamic wind pressures at the NAHB Research Center  NAHB/DOE/ACC  Laboratory Testing of a One-story House in IBHS Wind Tunnel Facility

182

Structure-Based Design of Potent and Ligand-Efficient Inhibitors of CTX-M Class A [beta]-Lactamase  

SciTech Connect (OSTI)

The emergence of CTX-M class A extended-spectrum {beta}-lactamases poses a serious health threat to the public. We have applied structure-based design to improve the potency of a novel noncovalent tetrazole-containing CTX-M inhibitor (K{sub i} = 21 {mu}M) more than 200-fold via structural modifications targeting two binding hot spots, a hydrophobic shelf formed by Pro167 and a polar site anchored by Asp240. Functional groups contacting each binding hot spot independently in initial designs were later combined to produce analogues with submicromolar potencies, including 6-trifluoromethyl-3H-benzoimidazole-4-carboxylic acid [3-(1H-tetrazol-5-yl)-phenyl]-amide, which had a K{sub i} value of 89 nM and reduced the MIC of cefotaxime by 64-fold in CTX-M-9 expressing Escherichia coli. The in vitro potency gains were accompanied by improvements in ligand efficiency (from 0.30 to 0.39) and LipE (from 1.37 to 3.86). These new analogues represent the first nM-affinity noncovalent inhibitors of a class A {beta}-lactamase. Their complex crystal structures provide valuable information about ligand binding for future inhibitor design.

Nichols, Derek A.; Jaishankar, Priyadarshini; Larson, Wayne; Smith, Emmanuel; Liu, Guoqing; Beyrouthy, Racha; Bonnet, Richard; Renslo, Adam R.; Chen, Yu (USF); (UCSF); (Clermont)

2012-07-11T23:59:59.000Z

183

Design of RF Feed System for Standing-Wave Accelerator Structures  

SciTech Connect (OSTI)

We are investigating a standing wave structure with an rf feed to each individual cell. This approach minimizes rf power flow and electromagnetic energy absorbed by an rf breakdown. The objective of this work is a robust high-gradient (above 100 MV/m) X-band accelerator structure.

Neilson, Jeffrey; Tantawi, Sami; Dolgashev, Valery [SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025 (United States)

2010-11-04T23:59:59.000Z

184

Representing Multi-Parent Organizational Structures for Use in High Performance Computing Resource Scheduling Algorithms.  

E-Print Network [OSTI]

??Historically, organizational structures of many universities and corporations have followed a strictly tree-based, hierarchical model. These organizations are defined with no more than one parent… (more)

Brown, Lloyd T 1982-

2010-01-01T23:59:59.000Z

185

Structural characterization and design optimization of hybrid composite tubes for TLP riser applications  

E-Print Network [OSTI]

methodology is applied to the optimization of a potential riser tube for a tension leg platform (TLP). Further analyses are then used to select a final optimized design and confirm its capabilities....

Farivar-Sadri, Kamran

2012-06-07T23:59:59.000Z

186

Self-Assembly by Design: From Structure and Function to Nanoscale Construction.  

E-Print Network [OSTI]

??This thesis is devoted to the discovery and application of fundamental design principles for molecular self-assembly. Self-assembled monolayer (SAMs) of organic thiols on Au{111} are… (more)

Hohman , James

2011-01-01T23:59:59.000Z

187

Design and analysis of algorithms and data structures for the efficient solution of graph theoretic problems on MIMD computers  

SciTech Connect (OSTI)

The problem of developing efficient algorithms and data structures to solve graph theoretic problems on tightly-coupled MIMD comuters is addressed. Several approaches to parallelizing a serial algorithm are examined. A technique is developed which allows the prediction of the expected execution time of some kinds of parallel algorithms. This technique can be used to determine which parallel algorithm is best for a particular application. Two parallel approximate algorithms for the Euclidean traveling salesman problem are designed and analyzed. The algorithms are parallelizations of the farthest-insertion heuristic and Karp's partitioning algorithm. Software lockout, the delay of processes due to contention for shared data structure, can be a significant hindrance to obtaining satisfactory speedup. Using the tactics of indirection and replication, new data structures are devised which can reduce the severity of software lockout. Finally, an upper bound to the speedup of parallel branch-and-bound algorithms which use the best-bound search strategy is determined.

Quinn, M.J.

1983-01-01T23:59:59.000Z

188

Mean and Covariance Structure Analysis of Hierarchical Data  

E-Print Network [OSTI]

are g H d ' = ^ z ' ^ g ® »V S = symmetric d lNg where I N Ng ® £yz lNg ® 2w is an identity matrixof dimension N , l g + lNg lNg' ® N g is a unit vector of

Bengt O. Muthén

2011-01-01T23:59:59.000Z

189

Geopolymer with hierarchically meso-/macroporous structures from...  

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

In the new synthetic method, highly alkaline geopolymer resin was first mixed with canola oil to form a homogeneous viscous emulsion which was then cured at 60C to give a...

190

The hierarchical structure and mechanics of plant materials  

Science Journals Connector (OSTI)

...units with acidic groups [3,9]. They include xyloglucans, xylans, glucomannans and galactoglucomannans. Their composition...and pectin, is first secreted; hemicellulose binds to the surface of the cellulose microfibrils, while pectin cross-links...

2012-01-01T23:59:59.000Z

191

Hierarchically structured photoelectrodes for dye-sensitized solar cells  

E-Print Network [OSTI]

-sensitized solar cells (DSCs) and organic/ inorganic hybrid solar cells. Guozhong Cao Guozhong Cao, Ph, and authored and edited 5 books, including ``Nanostructures and Nanomaterials''. His current research-ion batteries, supercapacitors, and hydrogen storage materials. This journal is ª The Royal Society of Chemistry

Cao, Guozhong

192

Hierarchical Structure-Ferroelectricity Relationships of Barium Titanate Particles  

E-Print Network [OSTI]

approaching the same scale in the process of miniaturization. The identification of the most influential, have been well-studied in a bulk BaTiO3 crystal. Correspondingly, the cooperative effect scale in the process of miniatur- ization. The identification of the most influential struc- ture among

Aksay, Ilhan A.

193

RD-Optimization of Hierarchical Structured Adaptive Vector Quantization  

E-Print Network [OSTI]

compensation can become competitive with standard transform coding. 1 Introduction Vector quantization (VQ) has coding based on entropy coding of motion compensated residual frames in the frequency domain, adaptive mode). This video codec does not apply motion compensation, however. A comparison with standard

Reiterer, Harald

194

Warm Standby in Hierarchically Structured Process-Control Programs  

E-Print Network [OSTI]

are identified and the reliability of a system using warm standby is evaluated and compared with that of hot standby. Our analysis indicates that the warm standby scheme is particularly suitable for long are possible. The feasibility of warm standby is demonstrated with a simulated chemical batch reactor system

Chen, Ing-Ray

195

Hybrid direct write lithographic strategies for complex hierarchical structures  

E-Print Network [OSTI]

With the number of alternative lithographic techniques for high resolution and 3D patterning rapidly increasing, there is a need to identify a set of scalable techniques which balances the ability to arbitrarily control ...

Singer, Jonathan P. (Jonathan Phillip)

2013-01-01T23:59:59.000Z

196

The emergence of hierarchical structure in human language  

E-Print Network [OSTI]

We propose a novel account for the emergence of human language syntax. Like many evolutionary innovations, language arose from the adventitious combination of two pre-existing, simpler systems that had been evolved for ...

Miyagawa, Shigeru

197

Modeling hierarchically structured nanoparticle/diblock copolymer systems  

E-Print Network [OSTI]

in energy production and conversion, drug delivery, and tissue growth, just to mention a few.1,2 In order in a variety of applications, including ­ but not limited to ­ microelectronics, energy storage and conversion nanocomposites is determined by a number of factors, some strictly connected to the nature of the system (i

Lisal, Martin

198

Hierarchical Models in Environmental Science Christopher K. Wikle  

E-Print Network [OSTI]

Hierarchical Models in Environmental Science Christopher K. Wikle July 2002 Accepted for, 222 Math Science Building, Columbia, MO 65203. e-mail: wikle@stat.missouri.edu 0 #12;1 Introduction

199

Hierarchically Porous Graphene as a Lithium–Air Battery Electrode  

Science Journals Connector (OSTI)

The lithium–air battery is one of the most promising technologies among various electrochemical energy storage systems. We demonstrate that a novel air electrode consisting of an unusual hierarchical arrangement of functionalized graphene sheets (with no ...

Jie Xiao; Donghai Mei; Xiaolin Li; Wu Xu; Deyu Wang; Gordon L. Graff; Wendy D. Bennett; Zimin Nie; Laxmikant V. Saraf; Ilhan A. Aksay; Jun Liu; Ji-Guang Zhang

2011-10-10T23:59:59.000Z

200

Bayesian Hierarchical Model for Combining Two-resolution Metrology Data  

E-Print Network [OSTI]

This dissertation presents a Bayesian hierarchical model to combine two-resolution metrology data for inspecting the geometric quality of manufactured parts. The high- resolution data points are scarce, and thus scatter over the surface being...

Xia, Haifeng

2010-01-14T23:59:59.000Z

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


201

Efficient Parallel Refinement for Hierarchical Radiosity on a DSM computer  

E-Print Network [OSTI]

Efficient Parallel Refinement for Hierarchical Radiosity on a DSM computer François X. Sillion memory (DSM) parallel architecture. Our task definition is based on a very fine grain decompo- sition

Paris-Sud XI, Université de

202

Probabilistic Pose Recovery Using Learned Hierarchical Object Models  

E-Print Network [OSTI]

-based and hierarchical approaches to object modelling have often been put forward in the vision community (Marr et al., 1978; Fukushima, 1980; Riesenhuber et al., 1999). Part-based representations are more robust

Paris-Sud XI, Université de

203

A nontransferring dry adhesive with hierarchical polymer nanohairs  

Science Journals Connector (OSTI)

A nontransferring dry adhesive with hierarchical polymer nanohairs 10.1073/pnas.0900323106 Hoon Eui Jeong Jin-Kwan Lee Hong Nam Kim Sang Heup Moon Kahp Y. Suh a School of Mechanical and Aerospace Engineering, b School of Chemical...

Hoon Eui Jeong; Jin-Kwan Lee; Hong Nam Kim; Sang Heup Moon; Kahp Y. Suh

2009-01-01T23:59:59.000Z

204

Hierarchical Task and Motion Planning in the Now  

E-Print Network [OSTI]

In this paper we outline an approach to the integration of task planning and motion planning that has the following key properties: It is aggressively hierarchical. It makes choices and commits to them in a top-down fashion ...

Kaelbling, Leslie Pack

2010-05-07T23:59:59.000Z

205

Optimization in the now: Dynamic peephole optimization for hierarchical planning  

E-Print Network [OSTI]

For robots to effectively interact with the real world, they will need to perform complex tasks over long time horizons. This is a daunting challenge, but recent advances using hierarchical planning have been able to provide ...

Hadfield-Menell, Dylan

206

Learning Hierarchical Plans by Reading Simple English Dustin Smith  

E-Print Network [OSTI]

Learning Hierarchical Plans by Reading Simple English Narratives Dustin Smith MIT Media Lab Cambridge, MA USA dsmit@mit.edu Kenneth Arnold MIT Media Lab Cambridge, MA USA kcarnold@mit.edu ABSTRACT We

Herr, Hugh

207

Chaotic spin correlations in frustrated Ising hierarchical lattices  

E-Print Network [OSTI]

Spin-spin correlations are calculated in frustrated hierarchical Ising models that exhibit chaotic renormalization-group behavior. The spin-spin correlations, as a function of distance, behave chaotically. The far correlations, ...

Aral, Nese

208

Aquatecture : underwater dwellings and sea born structures as paradigms of design  

E-Print Network [OSTI]

There are many reasons for undertaking a work such as this. Among them are the benefits offered to society when we acknowledge the potential of submersible structures, The provision of habitable underwater space remains ...

Guillermo, Ricardo

1982-01-01T23:59:59.000Z

209

Design of plasmonic back structures for efficiency enhancement of thin-film amorphous Si solar cells  

Science Journals Connector (OSTI)

Metallic back structures with one-dimensional periodic nanoridges attached to a thin-film amorphous Si (a-Si) solar cell are numerically studied. At the interfaces between a-Si and...

Bai, Wenli; Gan, Qiaoqiang; Bartoli, Filbert; Zhang, Jing; Cai, Likang; Huang, Yidong; Song, Guofeng

2009-01-01T23:59:59.000Z

210

Plasmonic Back Structures Designed for Efficiency Enhancement of Thin Film Solar Cells  

Science Journals Connector (OSTI)

Metallic back structures with one-dimensional periodic nanoridges attached to thin-film amorphous silicon (a-Si) solar cell are proposed to enhance the cell efficiency in a wide...

Bai, Wenli; Gan, Qiaoqiang; Bartoli, Filbert; Song, Guofeng

211

The design and manufacture of a novel thin-film microelectronic vacuum diode structure  

E-Print Network [OSTI]

be easily expanded to multi-electrode structures, and has application in flat-panel display technology. A process for the manufacture of such a diode is developed herein. Diodes of various sizes are subsequently manufactured and tested. Test results...

Mason, Mark E.

2012-06-07T23:59:59.000Z

212

Protein folding and non-conventional drug design: a primer for nuclear structure physicists  

SciTech Connect (OSTI)

Some of the paradigms emerging from the study of the phenomena of phase transitions in finite many-body systems, like e.g. the atomic nucleus can be used at profit to solve the protein folding problem within the framework of simple (although not oversimplified) models. From this solution a paradigm emerges for the design of non-conventional drugs, which inhibit enzymatic action without inducing resistance (mutations). The application of these concepts to the design of an inhibitor to the HIV-protease central in the life cycle of the HIV virus is discussed.

Broglia, R.A. [Dipartimento di Fisica, Universita di Milano, Via Celoria 16, I-20133 Milan (Italy); INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan (Italy); Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen (Denmark); Tiana, G.; Provasi, D. [Dipartimento di Fisica, Universita di Milano, Via Celoria 16, I-20133 Milan (Italy); INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan (Italy)

2004-02-27T23:59:59.000Z

213

Optimal Design and Scheduling of Unsteady State Material Recovery Networks  

E-Print Network [OSTI]

methodologies: the first is a hierarchical multi-step methodology developed for the design and scheduling of batch water (material of interest) recycle networks. A new source- double tank-sink arrangement is introduced to overcome the limitation of samecycle...

Rabie, Arwa H.

2010-01-14T23:59:59.000Z

214

Structural design and analysis of a lightweight composite sandwich space radiator panel  

E-Print Network [OSTI]

The goal of this study is to design and analyze a sandwich composite panel with lightweight graphite foam core and carbon epoxy face sheets that can function as a radiator for the given payload in a satellite. This arrangement provides a lightweight...

Mukundan, Sudharsan

2005-02-17T23:59:59.000Z

215

Combining Functional and Structural Reasoning for Safety Analysis of Electrical Designs  

E-Print Network [OSTI]

in detail. FLAME has been developed over several years, and is capable of composing an FMEA report for many Failure mode effects analysis (FMEA) of a design involves the investigation and assessment of the effects, electronic and mechanical systems are being combined in safety-critical applications. Automation of FMEA

Snooke, Neal

216

Gene Designer: a synthetic biology tool for constructing artificial DNA segments  

Science Journals Connector (OSTI)

Gene Designer is a stand-alone software for fast and easy design of synthetic DNA segments. Users can easily add, edit ... drag-and-drop graphic interface and a hierarchical DNA/Protein object map. Using advanced...

Alan Villalobos; Jon E Ness; Claes Gustafsson; Jeremy Minshull…

2006-06-01T23:59:59.000Z

217

Structured design, consistency analysis and failure reasoning of business workflows with activity-control templates and causal ordering  

Science Journals Connector (OSTI)

The design, analysis, control and diagnosis of business workflows have been major challenges for enterprise information system designers. We propose a structured framework for workflow design, formal semantics, consistency analysis, execution automation and failure reasoning targeting E-commerce applications. A business workflow is modeled by using a visual tool named activity-control (AC) diagram. Frequently occurring business procedures are captured by the adoptions of reusable AC templates. With formally defined semantics by a combination of first-order logic and happen-before causal ordering in distributed system theory, workflow consistency can be mechanically analyzed at design time while failure reasoning can be applied at execution time for problem diagnosis. A completely specified model is automatically converted to a workflow by an iterative traversal algorithm that maps an AC diagram to an XML workflow specification which can then be executed automatically by an XML workflow engine. A failure reasoning and diagnosis algorithm is devised to find all possible causes of a failed execution when problems occur. Preliminary proof-of-concept implementation and evaluation results demonstrate the feasibility and effectiveness of our framework and techniques.

Shiow-yang Wu; Kuo-Chang Lin

2011-01-01T23:59:59.000Z

218

Structural biology and bioinformatics in drug design: opportunities and challenges for target identification and lead discovery  

Science Journals Connector (OSTI)

...by charged and polar patches. Figure 7 The human...essential for normal DNA repair, there is an advantage...structure determination pipeline. Proc. Natl Acad...double-strand-break-repair mutant mammalian cells...gene and its role in DNA repair and V(D)J recombination...

2006-01-01T23:59:59.000Z

219

Physical Similitude in Hierarchical Engineered Systems  

E-Print Network [OSTI]

reliability analysis into the design of passive cooling systems with an application to a gas-cooled reactor.

Blandford, Edward David

2010-01-01T23:59:59.000Z

220

Design of a short electro-optic modulator based on SiGe HBT structure  

E-Print Network [OSTI]

­68980C­10 (2008). 3. A. Liu, R. Jones, L. Liao, D. Samara-Rubio, D. Rubin, O. Cohen, R. Nicolaescu­17113 (2007). 7. S. Deng, Z. R. Huang, and J. F. McDonald, "Design of high efficiency multi-GHz SiGe HBT.-S. Rieh, D. Greenberg, A. Stricker, and G. Freeman, "Scaling of SiGe heterojunction bipolar transistors

Huang, Zhaoran "Rena"

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Seismic design technology for breeder reactor structures. Volume 1. Special topics in earthquake ground motion  

SciTech Connect (OSTI)

This report is divided into twelve chapters: seismic hazard analysis procedures, statistical and probabilistic considerations, vertical ground motion characteristics, vertical ground response spectrum shapes, effects of inclined rock strata on site response, correlation of ground response spectra with intensity, intensity attenuation relationships, peak ground acceleration in the very mean field, statistical analysis of response spectral amplitudes, contributions of body and surface waves, evaluation of ground motion characteristics, and design earthquake motions. (DLC)

Reddy, D.P.

1983-04-01T23:59:59.000Z

222

Development of optimal diaphragm-based pulsation damper structure for high-pressure GDI pump systems through design of experiments  

Science Journals Connector (OSTI)

This study optimizes the profile of the diaphragms of the pressure pulsation damper structure in a high-pressure GDI pump system that is now under development by applying the design of experiments (DOE) method. Because a high-pressure pulsation ranging from 0 to 10 bar reduces the performance of a GDI engine and harms it from a structural point of view, attenuating the large amplitude of the fluid pulsation pressure of the gasoline fuel injected into a GDI pump is necessary. Both the relatively low frequency range of the pressure pulsation, i.e., from 0 Hz to 30 Hz, inside the GDI engine and the high pressure of the utilized gasoline fuel prevent us from applying the existing pressure pulsation dampers such as a T-filter and Helmholtz resonator. Therefore, automotive companies utilize a new pressure pulsation damper structure called an accumulator, which is filled with gas. In the development of this pressure accumulator, it is crucial to design optimal profiles for the enveloping diaphragms in terms of the pulsation efficiency and mechanical stress for the sake of safety. In order to optimize the profile of the diaphragms used in the accumulator developed for a GDI engine, this research develops a new finite element procedure that considers the pressure variation by assuming the isoenthalpy state of the enveloped gas inside the accumulator. The developed finite element procedure is then integrated with the DOE method to determine the optimal profile for the enveloping structure of the developed accumulator. To validate the performance of the developed accumulator, the optimized accumulator is manufactured and tested.

Juyeong Kim; Gil Ho Yoon; Jinyee Noh; Jongwook Lee; Kyungnam Kim; Hyoungjong Park; Jaekeun Hwang; Yeonhong Lee

2013-01-01T23:59:59.000Z

223

An ultrasonic transducer transient compensator design based on a simplified Variable Structure Control algorithm  

Science Journals Connector (OSTI)

Abstract A non-linear control method, known as Variable Structure Control (VSC), is employed to reduce the duration of ultrasonic (US) transducer transients. A physically realizable system using a simplified form of the VSC algorithm is proposed for standard piezoelectric transducers and simulated. Results indicate a VSC-controlled transmitter reduces the transient duration to less than a carrier wave cycle. Applications include high capacity ultrasound communication and localization systems.

Shaodong Ma; Antony J. Wilkinson; Kevin S. Paulson

2014-01-01T23:59:59.000Z

224

Development of Design Criteria for Fluid Induced Structural Vibrations in Steam Generators and Heat Exchangers  

SciTech Connect (OSTI)

Flow-induced vibration in heat exchangers has been a major cause of concern in the nuclear industry for several decades. Many incidents of failure of heat exchangers due to apparent flow-induced vibration have been reported through the USNRC incident reporting system. Almost all heat exchangers have to deal with this problem during their operation. The phenomenon has been studied since the 1970s and the database of experimental studies on flow-induced vibration is constantly updated with new findings and improved design criteria for heat exchangers.

Uvan Catton; Vijay K. Dhir; Deepanjan Mitra; Omar Alquaddoomi; Pierangelo Adinolfi

2004-04-06T23:59:59.000Z

225

MHK Cost Breakdown Structure Draft | OpenEI Community  

Open Energy Info (EERE)

MHK Cost Breakdown Structure Draft MHK Cost Breakdown Structure Draft Home > Groups > Water Power Forum Kch's picture Submitted by Kch(24) Member 9 April, 2013 - 13:30 CBS current energy GMREC LCOE levelized cost of energy marine energy MHK ocean energy The generalized Cost Breakdown Structure (CBS) for marine and hydrokinetic (MHK) projects is a hierarchical structure designed to facilitate the collection and organization of lifecycle costs of any type of MHK project, including wave energy converters and current energy convertners. At a high level, the categories in the CBS will be applicable to all projects; at a detailed level, however, the CBS includes many cost categories that will pertain to one project but not others. It is expected that many of the detailed levels of the CBS will be populated with "NA" or left blank.

226

Design of a novel drilled-and-grouted pile in sand for offshore oil&gas structures  

Science Journals Connector (OSTI)

Abstract New offshore oil and gas exploration has placed renewed emphasis on developing structures in relatively complex geological conditions. Due to the damaging nature of impact driving, traditional steel piles used to support jacket structures, are not ideally suited to specific soil types, such as carbonate sands. Drilled and grouted piles are commonly used to support structures in these soil conditions. This paper describes a novel drilled pile, which has been developed specifically to provide a cost effective installation process while maintaining the benefits of grouted piles. The installation process negates the need for temporary casing in weak soils and minimizes the number of offshore operations. In this paper, the installation methodology and post-installation performance of a large scale onshore field trial is described. The installation process was successfully demonstrated with a 1.9 m diameter test pile installed in fine sand to 17.7 m depth in under 3 h. The performance of the pile, as measured in a tension static load test, was shown to compare favorably with existing pile design methods.

David Igoe; Giovanni Spagnoli; Paul Doherty; Leonhard Weixler

2014-01-01T23:59:59.000Z

227

An Assessment of the State-of-the-Art in the Design and Manufacturing of Large Composite Structures for Aerospace Vehicles  

Science Journals Connector (OSTI)

The results of an assessment of the state-of-the-art in the design and manufacturing of large composite structures are described. The focus of the assessment is on the use of polymeric matrix composite materials for large airframe structural components, ...

Harris Charles E.; Jr James H. Starnes; Shuart Mark J.

2001-04-01T23:59:59.000Z

228

Carbon composition with hierarchical porosity, and methods of preparation  

SciTech Connect (OSTI)

A method for fabricating a porous carbon material possessing a hierarchical porosity, the method comprising subjecting a precursor composition to a curing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer, (ii) a phenolic component, (iii) a dione component in which carbonyl groups are adjacent, and (iv) an acidic component, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a carbon material possessing a hierarchical porosity comprised of mesopores and macropores. Also described are the resulting hierarchical porous carbon material, a capacitive deionization device in which the porous carbon material is incorporated, as well as methods for desalinating water by use of said capacitive deionization device.

Mayes, Richard T; Dai, Sheng

2014-10-21T23:59:59.000Z

229

Development of Design Criteria for Fluid Induced Structural Vibration in Steam Generators and Heat Exchangers  

SciTech Connect (OSTI)

OAK-B135 Flow-induced vibration in heat exchangers has been a major cause of concern in the nuclear industry for several decades. Many incidents of failure of heat exchangers due to apparent flow-induced vibration have been reported through the USNRC incident reporting system. Almost all heat exchangers have to deal with this problem during their operation. The phenomenon has been studied since the 1970s and the database of experimental studies on flow-induced vibration is constantly updated with new findings and improved design criteria for heat exchangers. In the nuclear industry, steam generators are often affected by this problem. However, flow-induced vibration is not limited to nuclear power plants, but to any type of heat exchanger used in many industrial applications such as chemical processing, refrigeration and air conditioning. Specifically, shell and tube type heat exchangers experience flow-induced vibration due to the high velocity flow over the tube banks. Flow-induced vibration in these heat exchangers leads to equipment breakdown and hence expensive repair and process shutdown. The goal of this research is to provide accurate measurements that can help modelers to validate their models using the measured experimental parameters and thereby develop better design criteria for avoiding fluid-elastic instability in heat exchangers. The research is divided between two primary experimental efforts, the first conducted using water alone (single phase) and the second using a mixture of air or steam and water as the working fluid (two phase). The outline of this report is as follows: After the introduction to fluid-elastic instability, the experimental apparatus constructed to conduct the experiments is described in Chapter 2 along with the measurement procedures. Chapter 3 presents results obtained on the tube array and the flow loop, as well as techniques used in data processing. The project performance is described and evaluated in Chapter 4 followed by a discussion of publications and presentations relevant to the project in Chapter 5, while the conclusions and recommendations for future work are presented in Chapter 6.

Catton, Ivan; Dhir, Vijay K.; Alquaddoomi, O.S.; Mitra, Deepanjan; Adinolfi, Pierangelo

2004-03-26T23:59:59.000Z

230

In Situ One-Step Synthesis of Hierarchical Nitrogen-Doped Porous...  

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

One-Step Synthesis of Hierarchical Nitrogen-Doped Porous Carbon for High Performance Supercapacitors. In Situ One-Step Synthesis of Hierarchical Nitrogen-Doped Porous Carbon for...

231

Multimedia autoannotation via hierarchical semantic ensembles Serhiy Koisnov and Stephane Marchand-Maillet  

E-Print Network [OSTI]

Multimedia autoannotation via hierarchical semantic ensembles Serhiy Koisnov and St´ephane Marchand kosinov,marchand¡ @cui.unige.ch Abstract This paper presents a hierarchical semantic ensem- ble learning

Genève, Université de

232

Recent advances in alloy design of Ni{sub 3}Al alloys for structural use  

SciTech Connect (OSTI)

This is a comprehensive review of recent advances in R&D of Ni{sub 3}Al-based alloys for structural use at elevated temperatures in hostile environments. Recent studies indicate that polycrystalline Ni{sub 3}Al is intrinsically quite ductile at ambient temperatures, and its poor tensile ductility and brittle grain-boundary fracture are caused mainly by moisture-induced hydrogen embrittlement when the aluminide is tested in moisture- or hydrogen-containing environments. Tensile ductility is improved by alloying with substitutional and interstitial elements. Among these additives, B is most effective in suppressing environmental embrittlement and enhancing grain-boundary cohesion, resulting in a dramatic increase of tensile ductility at room temperature. Both B-doped and B-free Ni{sub 3}Al alloys exhibit brittle intergranular fracture and low ductility at intermediate temperatures (300-850 C) because of oxygen-induced embrittlement in oxidizing environments. Cr is found to be most effective in alleviating elevated-temperature embrittlement. Parallel efforts on alloy development using physical metallurgy principles have led to development of several Ni{sub 3}Al alloys for industrial use. The unique properties of these alloys are briefly discussed. 56 refs, 15 figs, 3 tabs.

Liu, C.T.; George, E.P.

1996-12-31T23:59:59.000Z

233

On Hard Decision Upper Bounds for Coded M-Ary Hierarchical Modulation  

E-Print Network [OSTI]

outlay, such a dual decoder allows for savings on energy consumption any time hard decision is deemed-uniform spacing of the symbols in a hierarchical constellation. For example, for a hierarchical QAM constellation of hierarchical constellations under memoryless channel models. Our analysis is based on the observation

Cosman, Pamela C.

234

Structure-Based Design of Potent and Selective 3-Phosphoinositide-Dependent Kinase-1 (PDK1) Inhibitors  

SciTech Connect (OSTI)

Phosphoinositide-dependent protein kinase-1(PDK1) is a master regulator of the AGC family of kinases and an integral component of the PI3K/AKT/mTOR pathway. As this pathway is among the most commonly deregulated across all cancers, a selective inhibitor of PDK1 might have utility as an anticancer agent. Herein we describe our lead optimization of compound 1 toward highly potent and selective PDK1 inhibitors via a structure-based design strategy. The most potent and selective inhibitors demonstrated submicromolar activity as measured by inhibition of phosphorylation of PDK1 substrates as well as antiproliferative activity against a subset of AML cell lines. In addition, reduction of phosphorylation of PDK1 substrates was demonstrated in vivo in mice bearing OCl-AML2 xenografts. These observations demonstrate the utility of these molecules as tools to further delineate the biology of PDK1 and the potential pharmacological uses of a PDK1 inhibitor.

Medina, Jesus R.; Becker, Christopher J.; Blackledge, Charles W.; Duquenne, Celine; Feng, Yanhong; Grant, Seth W.; Heerding, Dirk; Li, William H.; Miller, William H.; Romeril, Stuart P.; Scherzer, Daryl; Shu, Arthur; Bobko, Mark A.; Chadderton, Antony R.; Dumble, Melissa; Gardiner, Christine M.; Gilbert, Seth; Liu, Qi; Rabindran, Sridhar K.; Sudakin, Valery; Xiang, Hong; Brady, Pat G.; Campobasso, Nino; Ward, Paris; Axten, Jeffrey M. (GSKPA)

2014-10-02T23:59:59.000Z

235

Hierarchical Distributed Task Allocation for Multi-Robot Exploration  

E-Print Network [OSTI]

the exploration process via a market-based mechanism. That is, each robot decides for itself whether it is moreHierarchical Distributed Task Allocation for Multi-Robot Exploration John Hawley and Zack Butler Abstract In order to more effectively explore a large unknown area, multiple robots may be employed to work

Butler, Zack

236

A Hierarchical History Matching Method and its Applications  

E-Print Network [OSTI]

......................................................................... 3 1.3 Software Prototype ................................................................................................... 5 CHAPTER II GLOBAL-LOCAL MODEL CALIBRATIONS ................................. 7 2.1 Introduction... .............................................................................................................. 7 2.2 Approach Outline ................................................................................................... 10 2.2.1 Outline of Hierarchical History Matching Method ......................................... 10 2.2.2 Illustration...

Yin, Jichao

2012-02-14T23:59:59.000Z

237

Hierarchical Random-walk Algorithms for Power Grid Analysis  

E-Print Network [OSTI]

Hierarchical Random-walk Algorithms for Power Grid Analysis Haifeng Qian Sachin S. Sapatnekar Minneapolis, MN 55414 qianhf@ece.umn.edu sachin@ece.umn.edu Abstract-- This paper presents a power grid an- bond power grid, for which the performance of the generic method degrades, is solved in 75.88 seconds

Sapatnekar, Sachin

238

A Hierarchical Checkpointing Protocol for Parallel Applications in Cluster Federations  

E-Print Network [OSTI]

A Hierarchical Checkpointing Protocol for Parallel Applications in Cluster Federations S federation. As a cluster federation comprises of a large number of nodes, there is a high probability fits to the characteristics of a cluster federation (large number of nodes, high latency and low

Paris-Sud XI, Université de

239

Hierarchical Control and Management of Virtual Microgrids for Vehicle Electrification  

E-Print Network [OSTI]

of electrical power generation and delivery. A Smart Grid is an intelligent and automated energy grid and new types of loads such as plug-in (hybrid) electric vehicles (PEVs); (2) optimizing systemHierarchical Control and Management of Virtual Microgrids for Vehicle Electrification Feng Lina

Zhang, Hongwei

240

Building Hierarchical Grid Storage Using the GFARM Global File System  

E-Print Network [OSTI]

-sharing service and the GFARM grid file system; then, it introduces our hybrid architecture. Section 4 gives Work One of the major goals of grid infrastructures is to transparently provide access to comBuilding Hierarchical Grid Storage Using the GFARM Global File System and the JUXMEM Grid Data

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Materialization TradeOffs in Hierarchical Shortest Path Algorithms  

E-Print Network [OSTI]

Materialization Trade­Offs in Hierarchical Shortest Path Algorithms Shashi Shekhar, Andrew Fetterer] form the kernel of many important applica­ tions including transportation; water, electric, and gas utilities; telephone networks; urban management; sewer maintenance, and irrigation canal man­ agement

Shekhar, Shashi

242

HIERARCHICAL MANAGEMENT OF BATTLEFIELD NETWORKS WITH THE SHAMAN MANAGEMENT SYSTEM  

E-Print Network [OSTI]

HIERARCHICAL MANAGEMENT OF BATTLEFIELD NETWORKS WITH THE SHAMAN MANAGEMENT SYSTEM Adarshpal S with a description of the SHAMAN system and briefly introduces its applica- tions to the management of tactical for MANagement). This management system developed at the Network Management Laboratory of the Univer- sity

Sethi, Adarshpal

243

Hierarchical kernel-based rotation and scale invariant similarity  

Science Journals Connector (OSTI)

Image similarity measure has been widely used in pattern recognition and computer vision. We usually face challenges in terms of rotation and scale changes. In order to overcome these problems, an effective similarity measure which is invariant to rotation ... Keywords: Hierarchical kernels, Image similarity measure, Log-polar transform, Rotation and scale invariance

Y. Y. Tang; Tian Xia; Yantao Wei; Hong Li; Luoqing Li

2014-04-01T23:59:59.000Z

244

A Hierarchical Distributed Approach for Mining Molecular Fragments  

E-Print Network [OSTI]

for several activities, such as inhibition of HIV or cancer cells. The screened compounds are recordedA Hierarchical Distributed Approach for Mining Molecular Fragments Christoph Sieb1 , Giuseppe Di Fatta2 , and Michael R. Berthold1 1 ALTANA Chair for Bioinformatics and Information Mining Department

Berthold, Michael R.

245

Hierarchical Economic Optimization of Oil Production from Petroleum Reservoirs  

E-Print Network [OSTI]

Hierarchical Economic Optimization of Oil Production from Petroleum Reservoirs Gijs M. van Essen-dirk.jansen@shell.com). Abstract: In oil production waterflooding is a popular recovery technology, which involves the injection, the oil-water front may not move uniformly towards the production wells, but has a rather irregular shape

Van den Hof, Paul

246

23rd March 2012 Parameter Synthesis for Hierarchical  

E-Print Network [OSTI]

CS Seminar 23rd March 2012 Parameter Synthesis for Hierarchical Concurrent Real-Time Systems.-S. Dong, L. Fribourg, Y. Liu, R. Soulat, J. Sun Ã?tienne ANDRÃ? (LIPN) Parametric Stateful Timed CSP 23rd) Parametric Stateful Timed CSP 23rd March 2012 2 / 49 #12;Introduction Context: Model Checking Timed Systems

André, �tienne

247

Calorimetric glass transition explained by hierarchical dynamic facilitation  

E-Print Network [OSTI]

Calorimetric glass transition explained by hierarchical dynamic facilitation Aaron S. Keysa Contributed by David Chandler, February 11, 2013 (sent for review November 15, 2012) The glass transition different on cooling than on heating, and the response to melting a glass depends markedly on the cooling

Garrahan, Juan P.

248

Measuring Heterogeneity in Forensic Databases Using Hierarchical Bayes Models  

E-Print Network [OSTI]

Measuring Heterogeneity in Forensic Databases Using Hierarchical Bayes Models By Kathryn Roeder, as currently defined, do not uniquely identify individuals. For criminal cases involving DNA evidence, forensic­ ing profiles are based on reference populations maintained by forensic testing laboratories. Each

249

Using Dynamic Quantum Clustering to Analyze Hierarchically Heterogeneous Samples on the Nanoscale  

SciTech Connect (OSTI)

Dynamic Quantum Clustering (DQC) is an unsupervised, high visual data mining technique. DQC was tested as an analysis method for X-ray Absorption Near Edge Structure (XANES) data from the Transmission X-ray Microscopy (TXM) group. The TXM group images hierarchically heterogeneous materials with nanoscale resolution and large field of view. XANES data consists of energy spectra for each pixel of an image. It was determined that DQC successfully identifies structure in data of this type without prior knowledge of the components in the sample. Clusters and sub-clusters clearly reflected features of the spectra that identified chemical component, chemical environment, and density in the image. DQC can also be used in conjunction with the established data analysis technique, which does require knowledge of components present.

Hume, Allison; /Princeton U. /SLAC

2012-09-07T23:59:59.000Z

250

Spatial Data Structures Hanan Samet  

E-Print Network [OSTI]

Spatial Data Structures Hanan Samet Computer Science Department and Institute of Advanced Computer An overview is presented of the use of spatial data structures in spatial databases. The focus to the space occupied by it. Such techniques are known as spatial indexing methods. Hierarchical data

Shahabi, Cyrus

251

A Simplified Hierarchical Dynamic Quantum Secret Sharing Protocol with Added Features  

E-Print Network [OSTI]

Generalizing the notion of dynamic quantum secret sharing (DQSS), a simplified protocol for hierarchical dynamic quantum secret sharing (HDQSS) is proposed and it is shown that the protocol can be implemented using any existing protocol of quantum key distribution, quantum key agreement or secure direct quantum communication. The security of this proposed protocol against eavesdropping and collusion attacks is discussed with specific attention towards the issues related to the composability of the subprotocols that constitute the proposed protocol. The security and qubit efficiency of the proposed protocol is also compared with that of other existing protocols of DQSS. Further, it is shown that it is possible to design a semi-quantum protocol of HDQSS and in principle, the protocols of HDQSS can be implemented using any quantum state. It is also noted that the completely orthogonal-state-based realization of HDQSS protocol is possible and that HDQSS can be experimentally realized using a large number of alternative approaches.

Sandeep Mishra; Chitra Shukla; Anirban Pathak; R. Srikanth; Anu Venugopalan

2014-09-06T23:59:59.000Z

252

Producibility in hierarchical self-assembly Three results are shown on producibility in the hierarchical model of tile self-assembly.  

E-Print Network [OSTI]

Producibility in hierarchical self-assembly David Doty Abstract Three results are shown on producibility in the hierarchical model of tile self-assembly. It is shown that a simple greedy polynomial, an assembly is considered terminal if nothing can attach to it; viewing self-assembly as a computation

Doty, David

253

Sandia National Labs: PCNSC: Research: Collective Hierarchical Systems  

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

Collective Hierarchical Systems: Collective Hierarchical Systems: Developing life-emulating technologies by exploiting the physics of far-from-equilibrium, self-assembling systems What is it? We want to establish the Physical, Chemical and Nano Sciences Center and Sandia National Laboratories as major players in developing the interdisciplinary science of complex, far-from-equilibrium, self-assembling systems. These are systems that self-assemble highly organized states dynamically, across multiple length scales, through the constant flow-through and consumption of energy and material. Such driven systems, in contrast to equilibrated systems, can, in special cases, develop the key capability of representing, maintaining and modifying information. Such systems also typically bridge multiple length scales by developing

254

MOCHA: A Model Checking Tool that Exploits Design Structure R. Alur y L. de Alfaro \\Lambda R. Grosu z T.A. Henzinger \\Lambda M. Kang y R.  

E-Print Network [OSTI]

­level, partial system descrip­ tions, rapid prototyping, and simulation. As an analysis lan­ guage it allowsMOCHA: A Model Checking Tool that Exploits Design Structure R. Alur y L. de Alfaro \\Lambda R. Grosu of Computer Science, State University of New York, Stony Brook 1 INTRODUCTION Model checking is emerging

Alur, Rajeev

255

Hierarchically Ordered Cadmium Sulfide Nanowires Dispersed in Aqueous Solution  

Science Journals Connector (OSTI)

The paper reports on the preparation, characterization, and dispersion of cadmium sulfide (CdS) nanowires using ordered mesoporous silica, SBA-15, as a template. A homogeneous and stable dispersion of hierarchically ordered CdS nanowires in water ...This work demonstrates the formation of cadmium sulfide (CdS) nanowires. These nanowires are templated by mesoporous SBA-15 and their connectivity is tuned by the number of nanoconnectors (templated by micropores). They form stable dispersions in aqueous sodium dodecyl sulfate (SDS) solutions.

Rajagopalan Thiruvengadathan; Oren Regev

2005-05-17T23:59:59.000Z

256

The Energy Policy Pyramid - A Hierarchal Tool for Decision Makers  

E-Print Network [OSTI]

often fail to account for all costs of fuel choices. The cost and benefit of the alternative in both an energy accounting system based on Btus (Joules) as well as pollution and other benefits must be considered. In this decade, hydrogen has been...THE ENERGY POLICY PYRAMID – A HIERARCHAL TOOL FOR DECISION MAKERS ROBIN K. VIEIRA, DIRECTOR, BRD DIV. , FLORIDA SOLAR ENERGY CENTER, COCOA, FL ABSTRACT Policies of dealing with energy programs are often misdirected. Decision makers...

Vieira, R. K.

2006-01-01T23:59:59.000Z

257

Hierarchical MADM with fuzzy integral for evaluating enterprise intranet web sites  

Science Journals Connector (OSTI)

In the real world, most criteria have inter-dependent or interactive characteristics so they cannot be evaluated by conventional additive measures. Thus, to approximate the human subjective evaluation process, it would be more suitable to apply a fuzzy integral model, in which it is not necessary to assume additivity and independence. This research proposes an effective algorithm to determine the ?-value using the input data of fuzzy densities and the fuzzy integral based on ?-fuzzy measure to determine the overall evaluation. This research also gives an example of evaluating enterprise intranet web sites with illustrations of the hierarchical structure of ?-fuzzy measure for a Choquet integral model. The results show that the fuzzy integral is more suitable than a traditional multi-criteria evaluation method for human subjective evaluation, or when criteria are not mutually independent.

Gwo-Hshiung Tzeng; Yu-Ping Ou Yang; Chin-Tsai Lin; Chie-Bein Chen

2005-01-01T23:59:59.000Z

258

Hierarchical functional layers on high-capacity lithium-excess cathodes for superior lithium ion batteries  

Science Journals Connector (OSTI)

Abstract Li-excess layered Li[Li0.2Mn0.54Ni0.13Co0.13]O2 (LMNCO) nanoparticles are facilely synthesized using a surfactant-assisted dispersion method. Ultrathin and conformal oxide coatings are deposited on the surface of individual LMNCO nanoparticle via atomic layer deposition (ALD). The effect of oxide ALD coatings on improving electrochemical performance of LMNCO electrodes is evaluated and optimized via tuning the coating thickness and composition. In addition, we synthesize a novel core–shell structure cathode consisting of Li-excess LMNCO as core and Li-stoichiometric material as shell, and its electrochemical property is optimized by tailoring weight content and composition of shell materials. Finally, electrochemical performance of Li-excess cathode material can be maximized by surface modification with hierarch functional layers composed of 10 wt.% LiCoO2 shell (?10 nm thick) and 6ZrO2 ALD layers (?1 nm thick), which delivers very high initial discharge capacities of 296.4, 259.8, 156.6 and 104.2 mAh g?1 at 0.1C, 1C, 5C and 10C, and can retain 184.0 mAh g?1 at 1C after 100 electrochemical cycles. Such remarkably improved cycleabilitiy and rate capability of nanoarchitected Li-excess layered cathode material can be attributed to the synergic effect from hierarchical functional coatings to reduce electrochemical polarization, structural degradation and side reactions during electrochemical cycling.

Jianqing Zhao; Saad Aziz; Ying Wang

2014-01-01T23:59:59.000Z

259

Seismic design of a current woodframe structure and study of innovative products and damping systems in wood construction  

E-Print Network [OSTI]

Wood structures have seen resurgence in popularity over the past several decades, especially in Western States of America, such as California. The industry keeps creating new structural wood products of exceptional strength, ...

Mahjoub, Nina A. (Nina Azadeh)

2007-01-01T23:59:59.000Z

260

Vehicle Technologies Office Merit Review 2014: Coupled Hierarchical Models for Thermal, Mechanical, Electrical and Electrochemical Processes  

Broader source: Energy.gov [DOE]

Presentation given by [company name] at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about coupled hierarchical models...

Note: This page contains sample records for the topic "hierarchical structure designed" 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

A novel biomimetic approach to the design of high-performance ceramic/metal composites  

SciTech Connect (OSTI)

The prospect of extending natural biological design to develop new synthetic ceramic-metal composite materials is examined. Using ice-templating of ceramic suspensions and subsequent metal infiltration, we demonstrate that the concept of ordered hierarchical design can be applied to create fine-scale laminated ceramic-metal (bulk) composites that are inexpensive, lightweight and display exceptional damage-tolerance properties. Specifically, Al{sub 2}O{sub 3}/Al-Si laminates with ceramic contents up to approximately 40 vol% and with lamellae thicknesses down to 10 {micro}m were processed and characterized. These structures achieve an excellent fracture toughness of 40 MPa{radical}m at a tensile strength of approximately 300 MPa. Salient toughening mechanisms are described together with further toughening strategies.

Launey, Maximilien E.; Munch, Etienne; Alsem, Daan Hein; Saiz, Eduardo; Tomsia, Antoni P.; Ritchie, Robert O.

2009-08-01T23:59:59.000Z

262

Application of the Design Structure Matrix to integrated product development process ; Application of the DSM to integrated product development process .  

E-Print Network [OSTI]

??A challenging aspect of managing complex product development process is the ability to account for iterations, which are inherent in the design process. A leading… (more)

Nebiyeloul-Kifle, Yonas, 1964-

2005-01-01T23:59:59.000Z

263

Design optimization methodology for power converters based on global energy requirement criteria. Application to a DC-DC flyback structure  

E-Print Network [OSTI]

for power electronic converters according to the Global Energy Requirement (GER) criterion, i.e. the primary-design converters in order to take its environmental impacts (here, only its global primary energy consumptionDesign optimization methodology for power converters based on global energy requirement criteria

Paris-Sud XI, Université de

264

Structure  

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

Structure Structure functions 1 NOTE: THE FIGURES IN THIS SECTION ARE INTENDED TO SHOW THE REPRESENTATIVE DATA. THEY ARE NOT MEANT TO BE COMPLETE COMPILATIONS OF ALL THE WORLD'S RELIABLE DATA. Q 2 (GeV 2 ) F 2 (x,Q 2 ) * 2 i x H1 ZEUS BCDMS E665 NMC SLAC 10 -3 10 -2 10 -1 1 10 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 -1 1 10 10 2 10 3 10 4 10 5 10 6 Figure 16.6: The proton structure function F p 2 measured in electromagnetic scattering of positrons on protons (collider experiments ZEUS and H1), in the kinematic domain of the HERA data, for x > 0.00006 (cf. Fig. 16.9 for data at smaller x and Q 2 ), and for electrons (SLAC) and muons (BCDMS, E665, NMC) on a fixed target. Statistical and systematic errors added in quadrature are shown. The data are plotted as a function of Q 2 in bins of fixed x. Some points have been slightly offset in Q 2 for clarity. The ZEUS binning in x is used in this plot; all other data are rebinned to the x values of

265

Bayesian Hierarchical Models for aerospace gas turbine engine prognostics  

Science Journals Connector (OSTI)

Abstract Improved prognostics is an emerging requirement for modern health monitoring that aims to increase the fidelity of failure-time predictions by the appropriate use of sensory and reliability information. In the aerospace industry, it is a key technology to maximise aircraft availability, offering a route to increase time in-service and to reduce operational disruption through improved asset management. An aircraft engine is a complex system comprising multiple subsystems that have dependent interactions so it is difficult to construct a model of its degradation dynamics based on physical principles. This complexity suggests that a statistically robust methodology for handling large quantities of real-time data would be more appropriate. In this work, therefore, a Bayesian approach is taken to exploit fleet-wide data from multiple assets to perform probabilistic estimation of remaining useful life for civil aerospace gas turbine engines. The paper establishes a Bayesian Hierarchical Model to perform inference and inform a probabilistic model of remaining useful life. Its performance is compared with that of an existing Bayesian non-Hierarchical Model and is found to be superior in typical (heterogeneous) scenarios. The techniques use Bayesian methods to combine two sources of information: historical in-service data across the engine fleet and once per-flight transmitted performance measurement from the engine(s) under prognosis. The proposed technique provides predictive results within well defined uncertainty bounds and demonstrates several advantages of the hierarchical variant’s ability to integrate multiple unit data to address realistic prognostic challenges. This is illustrated by an example from a civil aerospace gas turbine fleet data.

Martha A. Zaidan; Robert F. Harrison; Andrew R. Mills; Peter J. Fleming

2015-01-01T23:59:59.000Z

266

Building a foundation for structure-based cellulosome design for cellulosic ethanol: Insight into cohesin-dockerin complexation from computer simulation  

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

Foundation for Structure-Based Cellulosome Design for Foundation for Structure-Based Cellulosome Design for Cellulosic Ethanol: Insight into Cohesin-Dockerin Complexation from Computer Simulation Jiancong Xu, 1,3 Michael Crowley, 2,3 and Jeremy C. Smith 1,3 1 Center for Molecular Biophysics, Building 6011, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA. 2 Chemical and Biosciences Center, National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO, 80401-3393, USA 3 BioEnergy Science Center Corresponding author. Jiancong Xu, Building 6011, MS6309, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37830, USA; E-mail: xuj1@ornl.gov; Phone: 865-241-9111; Fax: 865-576-7651. Running title. Computer simulation of cohesin-dockerin complexes. Manuscript pages: 29 Supplementary material pages: 4

267

A Hierarchical Security Architecture for Cyber-Physical Systems  

SciTech Connect (OSTI)

Security of control systems is becoming a pivotal concern in critical national infrastructures such as the power grid and nuclear plants. In this paper, we adopt a hierarchical viewpoint to these security issues, addressing security concerns at each level and emphasizing a holistic cross-layer philosophy for developing security solutions. We propose a bottom-up framework that establishes a model from the physical and control levels to the supervisory level, incorporating concerns from network and communication levels. We show that the game-theoretical approach can yield cross-layer security strategy solutions to the cyber-physical systems.

Quanyan Zhu; Tamer Basar

2011-08-01T23:59:59.000Z

268

Time Synchronization in Hierarchical TESLA Wireless Sensor Networks  

SciTech Connect (OSTI)

Time synchronization and event time correlation are important in wireless sensor networks. In particular, time is used to create a sequence events or time line to answer questions of cause and effect. Time is also used as a basis for determining the freshness of received packets and the validity of cryptographic certificates. This paper presents secure method of time synchronization and event time correlation for TESLA-based hierarchical wireless sensor networks. The method demonstrates that events in a TESLA network can be accurately timestamped by adding only a few pieces of data to the existing protocol.

Jason L. Wright; Milos Manic

2009-08-01T23:59:59.000Z

269

The environmental dependence of clustering in hierarchical models  

E-Print Network [OSTI]

In hierarchical models, density fluctuations on different scales are correlated. This induces correlations between dark halo masses, their formation histories, and their larger-scale environments. In turn, this produces a correlation between galaxy properties and environment. This correlation is entirely statistical in nature. We show how the observed clustering of galaxies can be used to quantify the importance of this statistical correlation relative to other physical effects which may also give rise to correlations between the properties of galaxies and their surroundings. We also develop a halo model description of this environmental dependence of clustering.

Ummi Abbas; Ravi K. Sheth

2005-09-20T23:59:59.000Z

270

Orc Notation Structured Wide-Area Programming  

E-Print Network [OSTI]

Orc Notation Structured Wide-Area Programming Jayadev Misra Department of Computer Science University of Texas at Austin http://orc.csres.utexas.edu April 12, 2010 Rennes, France #12;Orc Notation hierarchical structure. #12;Orc Notation Orc · Goal: Internet scripting language. · Next: Component integration

Misra, Jayadev

271

Structured Wide-Area Programming: Orc Calculus  

E-Print Network [OSTI]

Structured Wide-Area Programming: Orc Calculus Jayadev Misra Department of Computer Science University of Texas at Austin http://orc.csres.utexas.edu #12;Concurrency · ubiquitous. · difficult interactions. · Support hierarchical structure. #12;Orc · Initial Goal: Internet scripting language. · Next

Misra, Jayadev

272

Design, purification and characterization of a soluble variant of the integral membrane protein MotB for structural studies  

Science Journals Connector (OSTI)

...using the known scattering of water as previously described...To facilitate the protein purification via affinity chromatography...presented the rational design, purification and characterization of the water-soluble variant of homodimeric...

2013-01-01T23:59:59.000Z

273

Plan schematization : a computational approach to morphological structure of architectural space  

E-Print Network [OSTI]

In this thesis an architectural design theory is premised so that plan making can start from a 'space scheme' which is a description of 'hierarchic balloon representation'. The space organization of a plan is described in ...

Yoon, Chae-Shin

1994-01-01T23:59:59.000Z

274

Graphene–Nanotube–Iron Hierarchical Nanostructure as Lithium Ion Battery Anode  

Science Journals Connector (OSTI)

Graphene–Nanotube–Iron Hierarchical Nanostructure as Lithium Ion Battery Anode ... In this study, we report a novel route via microwave irradiation to synthesize a bio-inspired hierarchical graphene–nanotube–iron three-dimensional nanostructure as an anode material in lithium-ion batteries. ...

Si-Hwa Lee; Vadahanambi Sridhar; Jung-Hwan Jung; Kaliyappan Karthikeyan; Yun-Sung Lee; Rahul Mukherjee; Nikhil Koratkar; Il-Kwon Oh

2013-04-03T23:59:59.000Z

275

Hierarchical Nanoparticle Ensembles Synthesized by Liquid Phase Directed Self-Assembly  

E-Print Network [OSTI]

Hierarchical Nanoparticle Ensembles Synthesized by Liquid Phase Directed Self-Assembly J. D, nanoparticle radius control is demonstrated using a micrometer scale switch. KEYWORDS: Self-assembly, directed assembly, Rayleigh-Plateau, volume-of-Fluid, hierarchical, nanoparticle assembly Chemical synthesis methods

Kondic, Lou

276

AN OPERATOR EXPERIENCE WITH A HIERARCHICAL REAL-TIME CONTROL SYSTEM (RCS)  

E-Print Network [OSTI]

AN OPERATOR EXPERIENCE WITH A HIERARCHICAL REAL-TIME CONTROL SYSTEM (RCS) Hui-Min Huang Mechanical@cme.nist.gov ABSTRACT The issue of operator interface in the RCS hierarchical control systems is the focus operators to be involved in system operations in different degrees. In some situations, the operators

277

A novel hierarchical homogeneous nanoarchitecture of TiO2 nanosheets branched TiO2 nanosheet arrays for high efficiency dye-sensitized solar cells  

Science Journals Connector (OSTI)

Abstract We report a novel hierarchical homogeneous nanoarchitecture of TiO2 nanosheets branched TiO2 nanosheet arrays, which is formed directly on transparent conductive fluorine-doped tin oxide (FTO) glass substrate through a one-step facile hydrothermal reaction without the use of a seed layer. The hierarchical homogeneous nanoarchitecture is composed of long TiO2 nanosheet trunks grafted with a large number of TiO2 nanosheet branches, which is an effective structure to improve the charge transport with the increase of the specific surface area. Dye-sensitized solar cell (DSSC) based on TiO2 nanosheets branched TiO2 nanosheet arrays can achieve an outstanding power conversion efficiency of 6.66%, which is attributed to the specific performances such as higher specific surface area for adsorbing more dye molecules, superior light scattering capacity for boosting the light-harvesting efficiency and faster charge transport for efficient charge collection.

Bing-Xin Lei; Xiao-Feng Zheng; He-kang Qiao; Yi Li; Shu-Nuo Wang; Guo-Lei Huang; Zhen-Fan Sun

2014-01-01T23:59:59.000Z

278

Application of RCC-MR for the structural design of tube sheet of intermediate heat exchanger for a sodium cooled fast reactor  

Science Journals Connector (OSTI)

Abstract The structural mechanics behavior of tube sheets of a sodium to sodium heat exchanger for a fast reactor, with circular tube holes pattern, less addressed subject in the literature, is investigated in detail. The tube sheet design rules recommended in the French design code RCC-MR-2007 and the associated solid mechanics basis are explained. A finite element analysis of tube sheets of intermediate heat exchanger of a typical 500 MWe pool type fast reactor is presented to study the effects of some specific parameters viz., (i) small solid rim portion with connecting shell and (ii) grooves on rim area. For the analysis, the distribution of holes on the last row is assumed to be symmetric and axial stiffening of tubes on tube sheet is included toward realistic estimation of stresses in the tube sheets. The effects are studied on the primary and secondary stresses induced along the interface between solid to perforated region. The aspects covered include linearization of radial and circumferential stress components, thereby deriving primary membrane and bending stress intensities along the radial directions with particular focus at the interfaces between solid portions and perforated portions including the effect of filet radius at the junction of tube sheet and shell. These investigations thus help to optimize the design of IHX tube sheets with high confidence. The analysis has been carried out by CAST3M, a structure analysis software granted by CEA, France.

Suman Gupta; P. Chellapandi

2014-01-01T23:59:59.000Z

279

Multi-step self-assembly route to three-dimensional block copolymer-semiconducting nanoparticle photonic arrays with structural hierarchy.  

E-Print Network [OSTI]

??A new multi-step self-assembly route to polymer-semiconducting nanoparticle photonic structures is described. The multi-step self-assembly strategy targets complex hierarchical structures in which organization of cadmium… (more)

Yusuf, Huda

2009-01-01T23:59:59.000Z

280

DESIGN, IMPLEMENTATION AND RELIABILITY ISSUES I strive for structural simplicity.... the technical man must not be lost in his own  

E-Print Network [OSTI]

on and off automatically. Other parts of the TMD include restraint systems for TMDs including anti-yaw torque loading conditions. This chapter addresses the design and implementation issues and also quantitatively their integration into the overall system. Moreover, the adoption of semi-active TLCDs requires additional equipment

Kareem, Ahsan

Note: This page contains sample records for the topic "hierarchical structure designed" 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

X-ray structure of the ternary MTX·NADPH complex of the anthrax dihydrofolate reductase: A pharmacophore for dual-site inhibitor design  

SciTech Connect (OSTI)

For reasons of bioterrorism and drug resistance, it is imperative to identify and develop new molecular points of intervention against anthrax. Dihydrofolate reductase (DHFR) is a highly conserved enzyme and an established target in a number of species for a variety of chemotherapeutic programs. Recently, the crystal structure of B. anthracis DHFR (baDHFR) in complex with methotrexate (MTX) was determined and, based on the structure, proposals were made for drug design strategies directed against the substrate binding site. However, little is gleaned about the binding site for NADPH, the cofactor responsible for hydride transfer in the catalytic mechanism. In the present study, X-ray crystallography at 100 K was used to determine the structure of baDHFR in complex with MTX and NADPH. Although the NADPH binding mode is nearly identical to that seen in other DHFR ternary complex structures, the adenine moiety adopts an off-plane tilt of nearly 90 deg. and this orientation is stabilized by hydrogen bonds to functionally conserved Arg residues. A comparison of the binding site, focusing on this region, between baDHFR and the human enzyme is discussed, with an aim at designing species-selective therapeutics. Indeed, the ternary model, refined to 2.3{angstrom} resolution, provides an accurate template for testing the feasibility of identifying dual-site inhibitors, compounds that target both the substrate and cofactor binding site. With the ternary model in hand, using in silico methods, several compounds were identified which could potentially form key bonding contacts in the substrate and cofactor binding sites. Ultimately, two structurally distinct compounds were verified that inhibit baDHFR at low {mu}M concentrations. The apparent K{sub d} for one of these, (2-(3-(2-(hydroxyimino)-2-(pyridine-4-yl)-6,7-dimethylquinoxalin-2-yl)-1-(pyridine-4-yl)ethanone oxime), was measured by fluorescence spectroscopy to be 5.3 {mu}M.

Bennett, Brad C.; Wan, Qun; Ahmad, Md Faiz; Langan, Paul; Dealwis, Chris G.; (Case Western); (LANL)

2009-11-18T23:59:59.000Z

282

Determining soft segment structure-property effects in the enhancement of segmented polyurethane performance  

E-Print Network [OSTI]

Liquid Crystalline Elastomer (LCE)-inspired segmented polyurethane elastomers possessing widely different extents of ordering were created to mimic the hierarchical structure of the continuous matrix and superior mechanical ...

Waletzko, Ryan Scott

2009-01-01T23:59:59.000Z

283

METHODOLOGY ARTICLE Open Access Quality assessment of protein model-structures  

E-Print Network [OSTI]

similar to proteins functionally similar to the prediction target. Whereas DALI is used to measure structure similarity, protein functional similarity is quantified using standardized and hierarchical model quality assessment method, the other is its modification, which provides a relative measure

Nebel, Jean-Christophe

284

j5 DNA Assembly Design Automation Software  

Science Journals Connector (OSTI)

j5 DNA Assembly Design Automation Software ... Here, we report the development and deployment of a web-based software tool, j5, which automates the design of scar-less multipart DNA assembly protocols including SLIC, Gibson, CPEC, and Golden Gate. ... The key innovations of the j5 design process include cost optimization, leveraging DNA synthesis when cost-effective to do so, the enforcement of design specification rules, hierarchical assembly strategies to mitigate likely assembly errors, and the instruction of manual or automated construction of scar-less combinatorial DNA libraries. ...

Nathan J. Hillson; Rafael D. Rosengarten; Jay D. Keasling

2011-12-07T23:59:59.000Z

285

Whither design space?  

Science Journals Connector (OSTI)

Design space exploration is a long-standing focus in computational design research. Its three main threads are accounts of designer action, development of strategies for amplification of designer action in exploration, and discovery of computational ... Keywords: Design Space Exploration, Knowledge Representation, Search, State Space, Typed Feature Structures

Robert F. Woodbury; Andrew L. Burrow

2006-04-01T23:59:59.000Z

286

Crystal Structures of the GCaMP Calcium Sensor Reveal the Mechanism of Fluorescence Signal Change and Aid Rational Design  

SciTech Connect (OSTI)

The genetically encoded calcium indicator GCaMP2 shows promise for neural network activity imaging, but is currently limited by low signal-to-noise ratio. We describe x-ray crystal structures as well as solution biophysical and spectroscopic characterization of GCaMP2 in the calcium-free dark state, and in two calcium-bound bright states: a monomeric form that dominates at intracellular concentrations observed during imaging experiments and an unexpected domain-swapped dimer with decreased fluorescence. This series of structures provides insight into the mechanism of Ca{sup 2+}-induced fluorescence change. Upon calcium binding, the calmodulin (CaM) domain wraps around the M13 peptide, creating a new domain interface between CaM and the circularly permuted enhanced green fluorescent protein domain. Residues from CaM alter the chemical environment of the circularly permuted enhanced green fluorescent protein chromophore and, together with flexible inter-domain linkers, block solvent access to the chromophore. Guided by the crystal structures, we engineered a series of GCaMP2 point mutants to probe the mechanism of GCaMP2 function and characterized one mutant with significantly improved signal-to-noise. The mutation is located at a domain interface and its effect on sensor function could not have been predicted in the absence of structural data.

Akerboom, Jasper; Velez Rivera, Jonathan D.; Rodriguez Guilbe, María M.; Alfaro Malavé, Elisa C.; Hernandez, Hector H.; Tian, Lin; Hires, S. Andrew; Marvin, Jonathan S.; Looger, Loren L.; Schreiter, Eric R.; (MIT); (Puerto Rico); (HHMI)

2009-03-16T23:59:59.000Z

287

Compiling software for a hierarchical distributed processing system  

DOE Patents [OSTI]

Compiling software for a hierarchical distributed processing system including providing to one or more compiling nodes software to be compiled, wherein at least a portion of the software to be compiled is to be executed by one or more nodes; compiling, by the compiling node, the software; maintaining, by the compiling node, any compiled software to be executed on the compiling node; selecting, by the compiling node, one or more nodes in a next tier of the hierarchy of the distributed processing system in dependence upon whether any compiled software is for the selected node or the selected node's descendents; sending to the selected node only the compiled software to be executed by the selected node or selected node's descendent.

Archer, Charles J; Blocksome, Michael A; Ratterman, Joseph D; Smith, Brian E

2013-12-31T23:59:59.000Z

288

Empirically-driven hierarchical classification of stock keeping units  

Science Journals Connector (OSTI)

This paper proposes a hierarchical multi-criteria classification method developed for inventory management purposes and applied in a case study of the spare parts business of a household appliance manufacturer. The classification method is built on the basis of SIX dimensions, resulting in 12 different classes of spare parts, for which differentiated forecasting and inventory policies are proposed and tested. The results of our simulation study demonstrate the reduction of the total logistics costs by about 20% whilst still achieving the specified target service level for each class. Even more importantly, the proposed approach is simple enough to be understood and applied by company managers, thus increasing the probability of its adoption (in the same or similar fashion) in other real world settings.

A. Bacchetti; F. Plebani; N. Saccani; A.A. Syntetos

2013-01-01T23:59:59.000Z

289

Computer Aided Multi-scale Design of SiC-Si3N4 Nanoceramic Composites for High-Temperature Structural Applications  

SciTech Connect (OSTI)

It is estimated that by using better and improved high temperature structural materials, the power generation efficiency of the power plants can be increased by 15% resulting in significant cost savings. One such promising material system for future high-temperature structural applications in power plants is Silicon Carbide-Silicon Nitride (SiC-Si{sub 3}N{sub 4}) nanoceramic matrix composites. The described research work focuses on multiscale simulation-based design of these SiC-Si{sub 3}N{sub 4} nanoceramic matrix composites. There were two primary objectives of the research: (1) Development of a multiscale simulation tool and corresponding multiscale analyses of the high-temperature creep and fracture resistance properties of the SiC-Si{sub 3}N{sub 4} nanocomposites at nano-, meso- and continuum length- and timescales; and (2) Development of a simulation-based robust design optimization methodology for application to the multiscale simulations to predict the range of the most suitable phase morphologies for the desired high-temperature properties of the SiC-Si{sub 3}N{sub 4} nanocomposites. The multiscale simulation tool is based on a combination of molecular dynamics (MD), cohesive finite element method (CFEM), and continuum level modeling for characterizing time-dependent material deformation behavior. The material simulation tool is incorporated in a variable fidelity model management based design optimization framework. Material modeling includes development of an experimental verification framework. Using material models based on multiscaling, it was found using molecular simulations that clustering of the SiC particles near Si{sub 3}N{sub 4} grain boundaries leads to significant nanocomposite strengthening and significant rise in fracture resistance. It was found that a control of grain boundary thicknesses by dispersing non-stoichiometric carbide or nitride phases can lead to reduction in strength however significant rise in fracture strength. The temperature dependent strength and microstructural stability was also significantly depended upon the dispersion of new phases at grain boundaries. The material design framework incorporates high temperature creep and mechanical strength data in order to develop a collaborative multiscale framework of morphology optimization. The work also incorporates a computer aided material design dataset development procedure where a systematic dataset on material properties and morphology correlation could be obtained depending upon a material processing scientist's requirements. Two different aspects covered under this requirement are: (1) performing morphology related analyses at the nanoscale and at the microscale to develop a multiscale material design and analyses capability; (2) linking material behavior analyses with the developed design tool to form a set of material design problems that illustrate the range of material design dataset development that could be performed. Overall, a software based methodology to design microstructure of particle based ceramic nanocomposites has been developed. This methodology has been shown to predict changes in phase morphologies required for achieving optimal balance of conflicting properties such as minimal creep strain rate and high fracture strength at high temperatures. The methodology incorporates complex material models including atomistic approaches. The methodology will be useful to design materials for high temperature applications including those of interest to DoE while significantly reducing cost of expensive experiments.

Vikas Tomer; John Renaud

2010-08-31T23:59:59.000Z

290

MODELING THE RED SEQUENCE: HIERARCHICAL GROWTH YET SLOW LUMINOSITY EVOLUTION  

SciTech Connect (OSTI)

We explore the effects of mergers on the evolution of massive early-type galaxies by modeling the evolution of their stellar populations in a hierarchical context. We investigate how a realistic red sequence population set up by z {approx} 1 evolves under different assumptions for the merger and star formation histories, comparing changes in color, luminosity, and mass. The purely passive fading of existing red sequence galaxies, with no further mergers or star formation, results in dramatic changes at the bright end of the luminosity function and color-magnitude relation. Without mergers there is too much evolution in luminosity at a fixed space density compared to observations. The change in color and magnitude at a fixed mass resembles that of a passively evolving population that formed relatively recently, at z {approx} 2. Mergers among the red sequence population ('dry mergers') occurring after z = 1 build up mass, counteracting the fading of the existing stellar populations to give smaller changes in both color and luminosity for massive galaxies. By allowing some galaxies to migrate from the blue cloud onto the red sequence after z = 1 through gas-rich mergers, younger stellar populations are added to the red sequence. This manifestation of the progenitor bias increases the scatter in age and results in even smaller changes in color and luminosity between z = 1 and z = 0 at a fixed mass. The resultant evolution appears much slower, resembling the passive evolution of a population that formed at high redshift (z {approx} 3-5), and is in closer agreement with observations. We conclude that measurements of the luminosity and color evolution alone are not sufficient to distinguish between the purely passive evolution of an old population and cosmologically motivated hierarchical growth, although these scenarios have very different implications for the mass growth of early-type galaxies over the last half of cosmic history.

Skelton, Rosalind E. [Department of Astronomy, Yale University, 260 Whitney Avenue, New Haven, CT 06511 (United States); Bell, Eric F. [Department of Astronomy, University of Michigan, 500 Church Street, Ann Arbor, MI 48109-1042 (United States); Somerville, Rachel S., E-mail: ros.skelton@yale.edu [Department of Physics and Astronomy, Rutgers, State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854 (United States)

2012-07-01T23:59:59.000Z

291

Stuttering, induced fluency, and natural fluency: A hierarchical series of activation likelihood estimation meta-analyses  

Science Journals Connector (OSTI)

Abstract Developmental stuttering is a speech disorder most likely due to a heritable form of developmental dysmyelination impairing the function of the speech-motor system. Speech-induced brain-activation patterns in persons who stutter (PWS) are anomalous in various ways; the consistency of these aberrant patterns is a matter of ongoing debate. Here, we present a hierarchical series of coordinate-based meta-analyses addressing this issue. Two tiers of meta-analyses were performed on a 17-paper dataset (202 PWS; 167 fluent controls). Four large-scale (top-tier) meta-analyses were performed, two for each subject group (PWS and controls). These analyses robustly confirmed the regional effects previously postulated as “neural signatures of stuttering” (Brown, Ingham, Ingham, Laird, & Fox, 2005) and extended this designation to additional regions. Two smaller-scale (lower-tier) meta-analyses refined the interpretation of the large-scale analyses: (1) a between-group contrast targeting differences between PWS and controls (stuttering trait); and (2) a within-group contrast (PWS only) of stuttering with induced fluency (stuttering state).

Kristin S. Budde; Daniel S. Barron; Peter T. Fox

2014-01-01T23:59:59.000Z

292

Structure-Based Design of an Organoruthenium Phosphatidyl-inositol-3-Kinase Inhibitor Reveals a Switch Governing Lipid Kinase Potency and Selectivity  

SciTech Connect (OSTI)

Mutations that constitutively activate the phosphatidyl-inositol-3-kinase (PI3K) signaling pathway, including alterations in PI3K, PTEN, and AKT, are found in a variety of human cancers, implicating the PI3K lipid kinase as an attractive target for the development of therapeutic agents to treat cancer and other related diseases. In this study, we report on the combination of a novel organometallic kinase inhibitor scaffold with structure-based design to develop a PI3K inhibitor, called E5E2, with an IC50 potency in the mid-low-nanomolar range and selectivity against a panel of protein kinases. We also show that E5E2 inhibits phospho-AKT in human melanoma cells and leads to growth inhibition. Consistent with a role for the PI3K pathway in tumor cell invasion, E5E2 treatment also inhibits the migration of melanoma cells in a 3D spheroid assay. The structure of the PI3K?/E5E2 complex reveals the molecular features that give rise to this potency and selectivity toward lipid kinases with implications for the design of a subsequent generation of PI3K-isoform-specific organometallic inhibitors.

Xie,P.; Williams, D.; Atilla-Gokcumen, G.; Milk, L.; Xiao, M.; Smalley, K.; Herlyn, M.; Meggers, E.; Marmorstein, R.

2008-01-01T23:59:59.000Z

293

Hierarchical dielectric orders in layered ferroelectrics Bi2SiO5  

Science Journals Connector (OSTI)

A hierarchical dielectric ordering in ferroelectric Bi2SiO5 was visualized by means of the maximum entropy method combined with electrostatic potential analysis via synchrotron radiation X-ray powder diffraction.

Kim, Y.

2014-04-30T23:59:59.000Z

294

Generating Hierarchical Summaries for Web Searches Dawn J. Lawrie and W. Bruce Croft  

E-Print Network [OSTI]

Generating Hierarchical Summaries for Web Searches Dawn J. Lawrie and W. Bruce Croft Department the most. The hierarchy provides an alternative to Copyright is held by the author/owner. SIGIR'03, July 28

Lawrie, Dawn J.

295

Generating Hierarchical Summaries for Web Searches Dawn J. Lawrie and W. Bruce Croft  

E-Print Network [OSTI]

Generating Hierarchical Summaries for Web Searches Dawn J. Lawrie and W. Bruce Croft Department summaries. This Copyright is held by the author/owner. SIGIR'03, July 28­August 1, 2003, Toronto, Canada

Lawrie, Dawn J.

296

A Hierarchical Replica Location Approach Based on Cache Mechanism and Load Balancing in Data Grid  

Science Journals Connector (OSTI)

According to data grid characteristics and data-sharing characteristics in distributed environments, we present...RepliLoc..., a hierarchical replica location approach based on Cache mechanism and load balancing....

Baoyan Song; Yanying Mao; Yan Wang; Derong Shen

2008-01-01T23:59:59.000Z

297

HIERARCHICAL NEURAL LEARNING FOR OBJECT RECOGNITION Daniel Oberhoff and Marina Kolesnik  

E-Print Network [OSTI]

. The system comprises sev- eral hierarchical levels of increasing complexity modeling the feed-forward path- nihiko Fukushima in 1980 [1], consisted of a series of S- and C-layers with shared weights for a set

Kolesnik, Marina

298

Development of an NC equipment level controller in a hierarchical shop floor control system  

E-Print Network [OSTI]

The methodology of developing an NC equipment controller in a Computer Integrated Manufacturing (CIM) System, which is based on a philosophy of hierarchical shop floor control, is presented in this research. The underlying architecture consists...

Chang, William

2012-06-07T23:59:59.000Z

299

Demand Based Hierarchical QoS Using Storage Resource Pools Ajay Gulati, Ganesha Shanmuganathan  

E-Print Network [OSTI]

Resource Pools (SRP). SRP supports the logical grouping of related VMs into hierarchical pools. SRP allows resource pools in the VMware ESX hyper- visor. Our results demonstrate that SRP provides hierar- chical

Mellor-Crummey, John

300

eQTL epistasis: detecting epistatic effects and inferring hierarchical relationships of genes in biological pathways  

Science Journals Connector (OSTI)

......hierarchical relationships. The proposed method is assessed by simulation experiments of various settings and is applied to human brain data regarding schizophrenia. Availability: The MATLAB source codes are publicly available at: http://biomecis.uta......

Mingon Kang; Chunling Zhang; Hyung-Wook Chun; Chris Ding; Chunyu Liu; Jean Gao

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Formal verification of hierarchically distributed agent based protection scheme in smart grid  

Science Journals Connector (OSTI)

In recent studies, hierarchically distributed non-intrusive agent aided transmission line distance relaying protection scheme has been proposed. This scheme is meant to provide the distance relays with situational awareness and improve their robustness ...

Shravan Garlapati; Sandeep K. Shukla

2012-07-01T23:59:59.000Z

302

InterTwinkles : online tools for non-hierarchical, consensus-oriented decision making  

E-Print Network [OSTI]

Non-hierarchical, participatory, consensus-based decision making has seen an explosion in popularity in recent years. The traditional techniques of formal consensus, however, are limited to face-to-face meetings, which can ...

DeTar, Charles (Charles Frederick)

2013-01-01T23:59:59.000Z

303

Thermoelectric Materials by Design, Computational Theory and...  

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

Design, Computational Theory and Structure Thermoelectric Materials by Design, Computational Theory and Structure 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual...

304

Thermoelectric Materials by Design: Computational Theory and...  

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

Design: Computational Theory and Structure Thermoelectric Materials by Design: Computational Theory and Structure Presentation from the U.S. DOE Office of Vehicle Technologies...

305

Numerical expression of general relationships in hierarchical data base management systems  

SciTech Connect (OSTI)

The need for a means to express general relationships among entity occurrences in hierarchical data bases is addressed. Integer expression of general path segments is described as a means to meet this need. Operations on the expressions are also described. Two possible implementations are discussed. Both implementations are compatible with the hierarchical data model, and provide a logical extension that permits representation of many-to-many relationships. 4 figures.

Hall, R. C.

1980-01-01T23:59:59.000Z

306

Neutron crystallography aids drug design  

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

Neutron crystallography aids drug design Neutron crystallography aids drug design Researchers have used neutron crystallography for the first time to determine the structure of a...

307

Ordered Hierarchical Nanostructured Carbon as a Highly Efficient Cathode Catalyst Support in Proton Exchange Membrane Fuel Cell  

Science Journals Connector (OSTI)

Ordered hierarchical nanostructured carbon (OHNC) has been fabricated through inverse replication of silica template and explored for the first time to support high loading of Pt nanoparticles as cathode catalyst in proton exchange membrane fuel cells (PEMFC). ... Ordered porous carbon materials with three-dimensionally interconnected pore structures and highly developed porosity have a variety of potential applications such as catalyst supports in low temperature fuel cells,(1, 2) electrode materials for electric double-layer capacitors(3, 4) and for lithium ion batteries,(5) adsorbents, and hydrogen storage materials. ... Carbon black Vulcan XC-72 (VC) is widely used as an electrocatalyst support in the PEMFCs due to its relatively large surface area and excellent chemical stability in the fuel cell environment. ...

Baizeng Fang; Jung Ho Kim; Minsik Kim; Jong-Sung Yu

2009-02-04T23:59:59.000Z

308

Seismic design, testing and analysis of reinforced concrete wall buildings  

E-Print Network [OSTI]

and Priestley M.J.N. (1992). “Seismic Design of Reinforced2007). “Displacement Based Seismic Design of Structures”.318-99 Provisions for Seismic Design of Structural Walls.

Panagiotou, Marios

2008-01-01T23:59:59.000Z

309

Object Model as the Basis of the Information Technology of Designing Complex Socio-Economic Systems  

Science Journals Connector (OSTI)

A method of modeling complex socio-economic systems based on the object-oriented approach is considered. The method is the basis for the information technology of design and allows creating a hierarchical model of a complex system. The results of applying ... Keywords: functional relations, hierarchy of components, object-oriented model, technology of design

M. P. Silich

2005-09-01T23:59:59.000Z

310

Assessment of structurally-controlled slope failure mechanisms and remedial design considerations at a feldspar open pit mine, Western Turkey  

Science Journals Connector (OSTI)

Abstract A variety of structural discontinuities crossing the slopes of Alipasa feldspar open pit mine, in western Turkey, caused different types of slope failures which led to interruptions in ore production. Thereupon, extensive geotechnical investigations, including geological characterization, in-situ and laboratory geotechnical testing, long-term movement monitoring, back-analyses and possible remedial measures, were conducted. Field observations and subsequent analyses suggested that the failures were limited to benches and the movement developed down-slope along discontinuities due to the following reasons: (i) unfavorable orientations of the foliation planes and joints, (ii) low shear strength along discontinuities and (iii) exceptionally heavy rains filling the tension cracks prior to failure. Comparisons between movement vectors and orientation of discontinuities showed a good agreement that indicates two types of instability, namely, planar and wedge failures. A back analysis procedure for the assessment of failures along the rough discontinuities, with non-linear failure envelopes, was successfully applied to the unstable slopes in the pit. The results of the 2-D limit equilibrium back-analyses and movement monitoring data suggested that the wedges and/or planar blocks formed at the uppermost benches tended to move down to fill the gap which resulted from the previous movement of the blocks in the benches. Remedial measures such as dewatering and reduction of height of the benches were suggested. Results of stability analyses conducted for possible remedial measures were presented and discussed.

Hakan Tanyas; Resat Ulusay

2013-01-01T23:59:59.000Z

311

A Hierarchical Framework for Demand-Side Frequency Control  

SciTech Connect (OSTI)

With large-scale plans to integrate renewable generation, more resources will be needed to compensate for the uncertainty associated with intermittent generation resources. Under such conditions, performing frequency control using only supply-side resources become not only prohibitively expensive but also technically difficult. It is therefore important to explore how a sufficient proportion of the loads could assume a routine role in frequency control to maintain the stability of the system at an acceptable cost. In this paper, a novel hierarchical decentralized framework for frequency based load control is proposed. The framework involves two decision layers. The top decision layer determines the optimal droop gain required from the aggregated load response on each bus using a robust decentralized control approach. The second layer consists of a large number of devices, which switch probabilistically during contingencies so that the aggregated power change matches the desired droop amount according to the updated gains. The proposed framework is based on the classical nonlinear multi-machine power system model, and can deal with timevarying system operating conditions while respecting the physical constraints of individual devices. Realistic simulation results based on a 68-bus system are provided to demonstrate the effectiveness of the proposed strategy.

Moya, Christian; Zhang, Wei; Lian, Jianming; Kalsi, Karanjit

2014-06-02T23:59:59.000Z

312

Complexity of hierarchically and 1-dimensional periodically specified problems  

SciTech Connect (OSTI)

We study the complexity of various combinatorial and satisfiability problems when instances are specified using one of the following specifications: (1) the 1-dimensional finite periodic narrow specifications of Wanke and Ford et al. (2) the 1-dimensional finite periodic narrow specifications with explicit boundary conditions of Gale (3) the 2-way infinite1-dimensional narrow periodic specifications of Orlin et al. and (4) the hierarchical specifications of Lengauer et al. we obtain three general types of results. First, we prove that there is a polynomial time algorithm that given a 1-FPN- or 1-FPN(BC)specification of a graph (or a C N F formula) constructs a level-restricted L-specification of an isomorphic graph (or formula). This theorem along with the hardness results proved here provides alternative and unified proofs of many hardness results proved in the past either by Lengauer and Wagner or by Orlin. Second, we study the complexity of generalized CNF satisfiability problems of Schaefer. Assuming P {ne} PSPACE, we characterize completely the polynomial time solvability of these problems, when instances are specified as in (1), (2),(3) or (4). As applications of our first two types of results, we obtain a number of new PSPACE-hardness and polynomial time algorithms for problems specified as in (1), (2), (3) or(4). Many of our results also hold for O(log N) bandwidth bounded planar instances.

Marathe, M.V.; Hunt, H.B. III; Stearns, R.E.; Radhakrishnan, V.

1995-08-23T23:59:59.000Z

313

Work Breakdown Structure and Plant/Equipment Designation System Numbering Scheme for the High Temperature Gas- Cooled Reactor (HTGR) Component Test Capability (CTC)  

SciTech Connect (OSTI)

This white paper investigates the potential integration of the CTC work breakdown structure numbering scheme with a plant/equipment numbering system (PNS), or alternatively referred to in industry as a reference designation system (RDS). Ideally, the goal of such integration would be a single, common referencing system for the life cycle of the CTC that supports all the various processes (e.g., information, execution, and control) that necessitate plant and equipment numbers be assigned. This white paper focuses on discovering the full scope of Idaho National Laboratory (INL) processes to which this goal might be applied as well as the factors likely to affect decisions about implementation. Later, a procedure for assigning these numbers will be developed using this white paper as a starting point and that reflects the resolved scope and outcome of associated decisions.

Jeffrey D Bryan

2009-09-01T23:59:59.000Z

314

Hierarchical Clustering Hierarchical Clustering  

E-Print Network [OSTI]

Distance/Proximity Matrix #12;After Merging · "How do we update the distance matrix?" C1 C4 C2 U C5 C3 ? ? ? ? ? ? ? C2 U C5C1 C1 C3 C4 C2 U C5 C3 C4 #12;Distance between two clusters · Each cluster is a set of points

Terzi, Evimaria

315

Hierarchical Clustering Hierarchical Clustering  

E-Print Network [OSTI]

we update the distance matrix?" C1 C4 C2 U C5 C3 ? ? ? ? ? ? ? C2 U C5C1 C1 C3 C4 C2 U C5 C3 C4 ... p

Terzi, Evimaria

316

Structuring beyond architecture  

E-Print Network [OSTI]

This thesis explores the layering and negotiation of structural devices in urban settings. Its point of departure is a series of patterns of how structural design and urban design interact and overlap, from which are ...

Foxe, David M

2006-01-01T23:59:59.000Z

317

POLYMERS IN STRUCTURAL DESIGN APPLICATIONS  

E-Print Network [OSTI]

FEP resin applications include wire and cable insulation for computer and electronic systems, telephone and alarm systems, and business-machine interconnects, FEP resin is also supplied as extruded sheet and film for release surfaces, roll covers, linings for chemical-processing tanks, and piping. A concentrate is available for Freon-blown-foam wire coating. PFA resins are used for hightemperature wire and cable insulation, heat-shrinkable tubing and roll covers, chemical-resistant linings for process-equipment components, and in semiconductor processing equipment. Materials do not adhere readily to the slippery surface of FEP, PFA, and PTFE parts. Surfaces can be chemically etched, however, to permit bonding with adhesives. Thus, low-friction surfaces of fluorocarbon tape or film can be bonded to steel, aluminum, rubber, or other materials. FEP and PFA parts can be heat sealed to themselves, to PTFE parts, or to metals at low pressure and temperatures above 310 °C. CTFE: Sensitivity to processing conditions is greater in CTFE resins than in most polymers.Molding and extruding operations require accurate temperature control, flow channel streamlining, and high pressure because of the high melt viscosity of these materials. With too little heat, the plastic is unworkable; too much heat degrades the polymer. Degradation begins at about 274 °C. Because of

Nedžad Rep?i?

318

Lightweight structures in urban design  

E-Print Network [OSTI]

Lightweight architecture questions how we architects think about the environment. It has qualities which complement "mainstream" buildings. This thesis will explore these qualities and will propose that this architecture ...

Bonnemaison, Sarah

1985-01-01T23:59:59.000Z

319

Identification of a novel polyfluorinated compound as a lead to inhibit the human enzymes aldose reductase and AKR1B10: structure determination of both ternary complexes and implications for drug design  

Science Journals Connector (OSTI)

The polyfluorinated compound 2,2',3,3',5,5',6,6'-octafluoro-4,4'-biphenyldiol (JF0064) is a potent inhibitor (IC50 1 ?M) of both aldose reductase and AKR1B10. X-ray structures of ternary complexes of both enzymes with JF0064 allow it to be inferred that this lead compound binds to the enzyme active site through an acidic phenol group and allow the extraction of important hints for structure-based drug design.

Cousido-Siah, A.

2014-02-27T23:59:59.000Z

320

System Design Stage  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This chapter addresses translating the user-oriented functional design specifications into a set of technical, computer-oriented system design specifications; and designing the data structure and processes to the level of detail necessary to plan and execute the Programming and Installation Stages.

1997-05-21T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

NOTFORDISTRIBUTIONJSTAT_013P_0212v4 The calculation of multi-fractal properties of directed random walks on hierarchic  

E-Print Network [OSTI]

the hierarchic tree Random Energy Model with continuous branching and calculate the moments of the corresponding. INTRODUCTION Random energy models on hierarchic trees are rather well-known and much investigated objects energy variables to every branch of the tree, and further attributes the random energy to every node

322

Formation of Hierarchical Nanoparticle Pattern Arrays Using Colloidal Lithography and Two-Step Self-Assembly: Microspheres  

E-Print Network [OSTI]

Formation of Hierarchical Nanoparticle Pattern Arrays Using Colloidal Lithography and Two-Step Self of hierarchical nanoparticle arrays and film patterns using a novel combination of colloidal lithography (CL), two-step self-assembly, and reactive-ion etching (RIE). In this approach, a uniform nanoparticle film (15-50 nm

New Mexico, University of

323

Equation-based hierarchical optimization of a pipeline ADC  

E-Print Network [OSTI]

In system design, allocation of circuit resources like power and noise budget is a difficult problem. It is difficult to know the optimal distribution of resources because the performance space of each component is not ...

Khanna, Tania

2008-01-01T23:59:59.000Z

324

Hierarchical, multilayered cell walls reinforced by recycled silk cocoons enhance the structural integrity of honeybee combs  

Science Journals Connector (OSTI)

...the indentation moduli of anisotropic biomaterials (2 ZZQQhy6), although for anisotropic media, the indentation...Indentation of elastically anisotropic half-spaces by cones...Concrete, bone, and shale. J Am Ceram Soc 90:2677...

Kai Zhang; Huiling Duan; Bhushan L. Karihaloo; Jianxiang Wang

2010-01-01T23:59:59.000Z

325

Hierarchical Pore Structure and Wetting Properties of Single-Wall Carbon Nanotube Fibers  

Science Journals Connector (OSTI)

Philippe Poulin , Stéphane Badaire , and Maryse Maugey ... (1)?Vigolo, B.; Penicaud, A.; Coulon, C.; Sauder, C.; Pailler, R.; Journet, C.; Bernier, P.; Poulin, P. Science (Washington, D.C.) 2000, 290, 1331. ... Vigolo, Brigitte; Penicaud, Alain; Coulon, Claude; Sauder, Cedric; Pailler, Rene; Journet, Catherine; Bernier, Patrick; Poulin, Philippe ...

Alexander V. Neimark; Sigrid Ruetsch; Konstantin G. Kornev; Peter I. Ravikovitch; Philippe Poulin; Stéphane Badaire; Maryse Maugey

2003-02-14T23:59:59.000Z

326

Carbon-dioxide emissions trading and hierarchical structure in worldwide finance and commodities markets  

Science Journals Connector (OSTI)

In a highly interdependent economic world, the nature of relationships between financial entities is becoming an increasingly important area of study. Recently, many studies have shown the usefulness of minimal spanning trees (MST) in extracting interactions between financial entities. Here, we propose a modified MST network whose metric distance is defined in terms of cross-correlation coefficient absolute values, enabling the connections between anticorrelated entities to manifest properly. We investigate 69 daily time series, comprising three types of financial assets: 28 stock market indicators, 21 currency futures, and 20 commodity futures. We show that though the resulting MST network evolves over time, the financial assets of similar type tend to have connections which are stable over time. In addition, we find a characteristic time lag between the volatility time series of the stock market indicators and those of the EU CO2 emission allowance (EUA) and crude oil futures (WTI). This time lag is given by the peak of the cross-correlation function of the volatility time series EUA (or WTI) with that of the stock market indicators, and is markedly different (>20 days) from 0, showing that the volatility of stock market indicators today can predict the volatility of EU emissions allowances and of crude oil in the near future.

Zeyu Zheng, Kazuko Yamasaki, Joel N. Tenenbaum, and H. Eugene Stanley

2013-01-29T23:59:59.000Z

327

Multiple Label Text Categorization on a Hierarchical Thesaurus  

Science Journals Connector (OSTI)

In this paper we describe our work on the automatic association of relevant topics, taken from a structured thesaurus, to documents written in natural languages. The approach we have followed models thesaurus top...

Francisco J. Ribadas; Erica Lloves…

2007-01-01T23:59:59.000Z

328

Distributed Smart-home Decision-making in a Hierarchical Interactive Smart Grid  

E-Print Network [OSTI]

1 Distributed Smart-home Decision-making in a Hierarchical Interactive Smart Grid Architecture Ding develop a comprehensive real-time interactive framework for the Utility and customers in a smart grid complicated smart grid architectures beyond the assumed abstract model. Index Terms--Bayesian Nash equilibria

Jayaweera, Sudharman K.

329

Dynamical robustness of biological networks with hierarchical distribution of time scales  

E-Print Network [OSTI]

]. Networks of regulating micro-RNA could be key players in canalising genetic developmental programmes [15Dynamical robustness of biological networks with hierarchical distribution of time scales A, the robustness of the relax- ation time using a chemical reaction description of genetic and signalling networks

Radulescu, Ovidiu

330

Multiple-objective Scheduling for the Hierarchical Control of Flexible Manufacturing Cells  

E-Print Network [OSTI]

Multiple-objective Scheduling for the Hierarchical Control of Flexible Manufacturing Cells (Revised level controller employs a combined priority rule to rank shop orders considering multiple scheduling the detailed schedule with projected order completion times back to the shop controller. Upon receiving

Nagi, Rakesh

331

2138 IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 17, NO. 11, NOVEMBER 2008 Hierarchical Color Correction for  

E-Print Network [OSTI]

training procedure using the well-known expectation max- imization (EM) algorithm. This hierarchical. Cur- rent version published October 10, 2008. This work was supported by Hewlett-Packard, Inc Lafayette, IN 47907 USA (e-mail: hsiddiqu@purdue. edu; bouman@ecn.purdue.edu). Color versions of one or more

332

A Hierarchical Task Model for Dispatching in Computer-Assisted Demand-Responsive Paratransit Operation  

E-Print Network [OSTI]

A Hierarchical Task Model for Dispatching in Computer- Assisted Demand-Responsive Paratransit Model for Dispatching in Computer-Assisted Demand-Responsive Paratransit Operation ABSTRACT, Dispatch Training #12;1 INTRODUCTION Demand-responsive paratransit service is on the rise. For example

Dessouky, Maged

333

Stream classification using hierarchical artificial neural networks: A fluvial hazard management tool  

E-Print Network [OSTI]

Stream classification using hierarchical artificial neural networks: A fluvial hazard management-in-Chief Keywords: Stream classification Artificial neural networks Kohonen self-organizing maps Counterpropagation. In this research, we apply non-parametric, clus- tering and classification artificial neural networks to assimilate

Vermont, University of

334

DOI: 10.1002/adem.201400414 Self-Assembled Recyclable Hierarchical Bucky Aerogels**  

E-Print Network [OSTI]

DOI: 10.1002/adem.201400414 Self-Assembled Recyclable Hierarchical Bucky Aerogels** By Mehmet, and recyclable multi-wall carbon nanotube (MWCNT) based light weight (density aerogels (BAGs than the energy dissipated by commercial foams with similar densities. 1. Introduction Aerogels

Daraio, Chiara

335

Biomimetic synthesis of hierarchical crystalline hydroxyapatite fibers in large-scale  

SciTech Connect (OSTI)

Highlights: ? Crystalline hierarchical hydroxyapatite (HAp) fibers are synthesized. ? We employ a biomimetic route by using cotton cloth as a natural bio-template. ? We study the effects of pH, ultrasonic cleaning time, and calcination temperature. ? We obtain an optimized reaction condition. ? This is a low cost method for production of hierarchical HAp fibers. -- Abstract: Crystalline hierarchical hydroxyapatite [Ca{sub 10}(PO{sub 4}){sub 6}(OH){sub 2}, HAp)] fibers were successfully synthesized via a biomimetic route by using cotton cloth as a natural bio-template. The effects of pH value, aging time, ultrasonic cleaning time, and calcination temperature on the purity and morphology of the resulting hydroxyapatite (HAp) were monitored by scanning election microscope (SEM), X-ray diffraction (XRD), and infrared spectrophotometer (IR) to obtain an optimized reaction condition, namely, pH 9, ultrasonic cleaning for 1 min, aging for 24 h, and calcination at 600 °C for 4 h. We found that the natural cellulose could not only control the morphology of HAp but also lower its phase transformation temperature. The impact of this method lies in its low cost and successful production of large-scale patterning of three-dimensional hierarchical HAp fibers.

Xing, Chaogang; Ge, Suxiang; Huang, Baojun; Bo, Yingying [Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang, Henan Province 461000 (China)] [Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang, Henan Province 461000 (China); Zhang, Di [State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030 (China)] [State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030 (China); Zheng, Zhi, E-mail: zhengzhi9999@yahoo.com.cn [Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang, Henan Province 461000 (China)] [Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang, Henan Province 461000 (China)

2012-06-15T23:59:59.000Z

336

Large-scale hierarchical optimization for online advertising and wind farm planning  

E-Print Network [OSTI]

Large-scale hierarchical optimization for online advertising and wind farm planning Konstantin Konstantin Salomatin #12;Keywords: online advertising, sponsored search, wind energy, layout optimization (particularly, spon- sored search) and wind farm turbine-layout planning. Whereas very different in specifics

Eskenazi, Maxine

337

Safari: A Self-Organizing, Hierarchical Architecture for Scalable Ad Hoc Networking  

E-Print Network [OSTI]

1 Safari: A Self-Organizing, Hierarchical Architecture for Scalable Ad Hoc Networking Shu Du Ahamed Rice University Abstract As wireless devices become more pervasive, mobile ad hoc networks are gaining importance, motivating the development of highly scalable ad hoc networking techniques. In this paper, we

Druschel, Peter

338

Hierarchal Light-Harvesting Aggregates and Their Potential for Solar Energy Applications  

Science Journals Connector (OSTI)

Hierarchal Light-Harvesting Aggregates and Their Potential for Solar Energy Applications ... She is professor of chemistry and materials science at Washington State University, where she focuses her long-standing interest in photoinduced electron transfer on the problem of achieving sustainable and economical solar energy conversion. ...

Jeanne L. McHale

2012-02-09T23:59:59.000Z

339

A Hierarchical Flight Planner for Sensor-Driven UAV Missions Spencer Clark and Michael A. Goodrich  

E-Print Network [OSTI]

A Hierarchical Flight Planner for Sensor-Driven UAV Missions Spencer Clark and Michael A. Goodrich Abstract-- Unmanned Aerial Vehicles (UAVs) are increas- ingly becoming economical platforms for carrying wilderness search and rescue scenarios. I. INTRODUCTION Unmanned aerial vehicles (UAVs) are frequently used

Goodrich, Michael A.

340

Hierarchical Segmentation of Surfaces Embedded in for Auto-Body Painting  

E-Print Network [OSTI]

. INTRODUCTION AND PRIOR WORK Robots are widely used for spray-painting in the automotive industry. OwingHierarchical Segmentation of Surfaces Embedded in R3 for Auto-Body Painting Prasad N. Atkar Aaron components. Index Terms-- segmentation, automation, coverage, trajectory planning, spray painting. I

Choset, Howie

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Hierarchical multi-view representation of spatial data; application to the analysis of Corsican Neolithic tombs.  

E-Print Network [OSTI]

Hierarchical multi-view representation of spatial data; application to the analysis of Corsican and views of spatial data for analyzing archeological data. This interdisciplinary project begins in the Corsica Island. · GIS representation of the previous data through spatial entities · Analysis

Paris-Sud XI, Université de

342

Hierarchical models facilitate spatial analysis of large data sets: a case study on invasive plant species  

E-Print Network [OSTI]

LETTER Hierarchical models facilitate spatial analysis of large data sets: a case study on invasive issues require the analysis of large spatial point data sets ­ for example, modelling species distributions, abundance and spread from survey data. But modelling spatial relationships, especially in large

Silander Jr., John A.

343

BUILDING BLOCKS FOR HIERARCHICAL LATENT VARIABLE MODELS Harri Valpola, Tapani Raiko and Juha Karhunen  

E-Print Network [OSTI]

BUILDING BLOCKS FOR HIERARCHICAL LATENT VARIABLE MODELS Harri Valpola, Tapani Raiko and Juha, Espoo, Finland E­mail: {Harri.Valpola, Tapani.Raiko, Juha.Karhunen}@hut.fi URL: http; and the approximation of the true posterior p(#18; j X) by q(#18;). The cost function C used in ensemble learning is C

Karhunen, Juha

344

Chronology-Sensitive Hierarchical Clustering of Pyrosequenced DNA Samples of E. coli: A Case Study  

E-Print Network [OSTI]

; pyro- gram; I. INTRODUCTION Escherichia coli (E. coli) are commensal inhabitants of the human gut[1 to investigate the variation in E. coli. Characterizing E. coli populations and their variation in humansChronology-Sensitive Hierarchical Clustering of Pyrosequenced DNA Samples of E. coli: A Case Study

Dekhtyar, Alexander

345

Optimal hierarchical pricing schemes for wireless network usage and resource allocation  

E-Print Network [OSTI]

some costs associated with the wireless network usage such as electricity cost, office renting costOptimal hierarchical pricing schemes for wireless network usage and resource allocation Andrey in wireless networks. For instance, before transmitting customer data, a network operator has to buy some

Paris-Sud XI, Université de

346

Green's Function for a Hierarchical Self-Avoiding Walk in Four Dimensions  

E-Print Network [OSTI]

Green's Function for a Hierarchical Self-Avoiding Walk in Four Dimensions David C. Brydges #3 . Apart from completing the program in the #12;rst paper, the main result is that the Green's function is almost equal to the Green's function for the Markov process with no self-repulsion, but at a di#11;erent

347

Assessing urban logistics pooling sustainability via a hierarchic dashboard from a group decision perspective  

E-Print Network [OSTI]

Assessing urban logistics pooling sustainability via a hierarchic dashboard from a group decision to measure the sustainable performance of urban logistics pooling systems. To do this, we start by defining it, since the method is able to be replicated in any context of group decision in urban logistics

Paris-Sud XI, Université de

348

Learning 3D Object Templates by Hierarchical Quantization of Geometry and Appearance Spaces  

E-Print Network [OSTI]

Learning 3D Object Templates by Hierarchical Quantization of Geometry and Appearance Spaces Wenze for learning 3D object tem- plates from view labeled object images. The 3D template is defined in a joint-sampled discrete space. Using information gain as a criterion, the best 3D template can be searched through the AND

Zhu, Song Chun

349

Hierarchical Analysis of Population Genetic Variation in Mitochondrial and Nuclear Genes of Daphnia pulex'  

E-Print Network [OSTI]

Hierarchical Analysis of Population Genetic Variation in Mitochondrial and Nuclear Genes of Daphnia in part to the limited dispersal ability of Daphnia. However, previous work has shown that fluctuating as rapidly with distance as does that for nuclear genes, which is slower than the neutral expectation

Lynch, Michael

350

IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL 2,NO. 3, JULY 1993 Hierarchical Reconstruction Using Geometry  

E-Print Network [OSTI]

Abstract-We describe and demonstrate a hierarchical recon- struction algorithm for use in noisy and limited-angle or sparse- angle tomography. The algorithm estimates an object's mass, center of mass, and convex hull from the available projections, and uses this information, along with fundamental mathematical constraints

Willsky, Alan S.

351

Supplement to Nested Dictionary Learning for Hierarchical Organization of Imagery and  

E-Print Network [OSTI]

1 Supplement to Nested Dictionary Learning for Hierarchical Organization of Imagery and Text I. NESTED K-MEANS The nested K-means is only taken as the initialization step, as a convenient a simple way we call nested K-means. Since this nested K-means algorithm is only taken for initialization, we set

Carin, Lawrence

352

Memory Bounds for the Distributed Execution of a Hierarchical Synchronous Data-Flow Graph  

E-Print Network [OSTI]

Memory Bounds for the Distributed Execution of a Hierarchical Synchronous Data-Flow Graph Karol analysis tech- nique to define the boundary of shared memory requirements of Multiprocessor System of transformations to the SDF graph so as to reveal its memory characteristics. These transformations produce

Paris-Sud XI, Université de

353

A Memory Hierarchical Layer Assigning and Prefetching Technique to Overcome the Memory Performance/Energy Bottleneck  

E-Print Network [OSTI]

A Memory Hierarchical Layer Assigning and Prefetching Technique to Overcome the Memory Performance thanail@ee.duth.gr Abstract The memory subsystem has always been a bottleneck in performance as well as significant power contributor in memory intensive applications. Many researchers have pre- sented multi

Paris-Sud XI, Université de

354

Two-Tier Hierarchical Cyber-Physical Security Analysis Framework For Smart Grid  

E-Print Network [OSTI]

Two-Tier Hierarchical Cyber-Physical Security Analysis Framework For Smart Grid Jin Wei and Deepa stability in the smart grid in the face of cyber-physical attack. We model the smart grid as a networked the proposed framework. I. INTRODUCTION It is well known that the smart grid promises increased reliability

Kundur, Deepa

355

Infinite Hidden Markov Models via the Hierarchical Dirichlet Process Matthew J. Beal  

E-Print Network [OSTI]

Infinite Hidden Markov Models via the Hierarchical Dirichlet Process Matthew J. Beal (presenting author) beal@cs.toronto.edu Yee Whye Teh ywteh@eecs.berkeley.edu Michael I. Jordan jordan model (iHMM) of Beal et al. [2]. The iHMM is a hidden Markov model (HMM) in which the number of hidden

Beal, Matt J.

356

Languages and semantics of grammatical discrete structures  

Science Journals Connector (OSTI)

Applying grammatical formalisms to engineering problems requires consideration of spatial, functional, and behavioral design attributes. This paper explores structural design languages and semantics for the generation of feasible and purposeful discrete ... Keywords: Design Languages, Engineering Grammars, Structural Layout, Structural Semantics

Kristina Shea; Jonathan Cagan

1999-09-01T23:59:59.000Z

357

Adding Nesting Structure to Words Rajeev Alur1  

E-Print Network [OSTI]

Adding Nesting Structure to Words Rajeev Alur1 and P. Madhusudan2 1 University of Pennsylvania, USA 2 University of Illinois at Urbana-Champaign, USA 1 Introduction We propose nested words to capture models where there is both a natural linear sequencing of positions and a hierarchically nested matching

Parthasarathy, Madhusudan

358

Hierarchy of formal descriptions for architectural analysis and design of complex CS  

Science Journals Connector (OSTI)

Traditionally, in the CS design process, it is considered more important to formalize the functionality of the system, while the system's environment plays a secondary role. From our point of view, a formalized representation of the system functionality ... Keywords: architectural analysis support, concept development, hierarchical formalization, simulation modeling approach

A. Kurkovsky

2007-09-01T23:59:59.000Z

359

Hierarchical Coordinated Freeway On-Ramp Metering Using Switching  

E-Print Network [OSTI]

and propagate shock waves. The Cell Transmission model (CTM) developed in (Daganzo [1994]),(C. F. Daganzo [1995]) is taken in this work since linear control tools can be used for analysis and control design. This model and Lomax [2007]), the cost of traffic jam has increased 5% during the last three years and has reached more

Boyer, Edmond

360

Design, Total Chemical Synthesis, and X-Ray Structure of a Protein Having a Novel Linear-Loop Polypeptide Chain Topology  

SciTech Connect (OSTI)

Original synthetic and structure determination methods were used to make a protein molecule with an unprecedented linear-loop polypeptide chain topology, and to characterize its X-ray structure.

Mandal, Kalyaneswar; Pentelute, Brad L.; Bang, Duhee; Gates, Zachary P.; Torbeev, Vladimir Yu.; Kent, Stephen B.H. (UC)

2012-02-10T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

A hierarchical approach for online temporal lobe seizure detection in long-term intracranial EEG recordings  

Science Journals Connector (OSTI)

Objective. Around 1% of the world's population is affected by epilepsy, and nearly 25% of patients cannot be treated effectively by available therapies. The presence of closed-loop seizure-triggered stimulation provides a promising solution for these patients. Realization of fast, accurate, and energy-efficient seizure detection is the key to such implants. In this study, we propose a two-stage on-line seizure detection algorithm with low-energy consumption for temporal lobe epilepsy (TLE). Approach. Multi-channel signals are processed through independent component analysis and the most representative independent component (IC) is automatically selected to eliminate artifacts. Seizure-like intracranial electroencephalogram (iEEG) segments are fast detected in the first stage of the proposed method and these seizures are confirmed in the second stage. The conditional activation of the second-stage signal processing reduces the computational effort, and hence energy, since most of the non-seizure events are filtered out in the first stage. Main results. Long-term iEEG recordings of 11 patients who suffered from TLE were analyzed via leave-one-out cross validation. The proposed method has a detection accuracy of 95.24%, a false alarm rate of 0.09/h, and an average detection delay time of 9.2 s. For the six patients with mesial TLE, a detection accuracy of 100.0%, a false alarm rate of 0.06/h, and an average detection delay time of 4.8 s can be achieved. The hierarchical approach provides a 90% energy reduction, yielding effective and energy-efficient implementation for real-time epileptic seizure detection. Significance. An on-line seizure detection method that can be applied to monitor continuous iEEG signals of patients who suffered from TLE was developed. An IC selection strategy to automatically determine the most seizure-related IC for seizure detection was also proposed. The system has advantages of (1) high detection accuracy, (2) low false alarm, (3) short detection latency, and (4) energy-efficient design for hardware implementation.

Sheng-Fu Liang; Yi-Chun Chen; Yu-Lin Wang; Pin-Tzu Chen; Chia-Hsiang Yang; Herming Chiueh

2013-01-01T23:59:59.000Z

362

Proc. ACM/SIGGRAPH Symposium on Solid State Modeling and Applications, Montreal, Quebec, Canada, May 1993 A COMPUTATIONAL APPROACH TO THE DESIGN OF MICROMECHANICAL HINGED STRUCTURES  

E-Print Network [OSTI]

Proc. ACM/SIGGRAPH Symposium on Solid State Modeling and Applications, Montreal, Quebec, Canada Modeling and Applications, Montreal, Quebec, Canada, May 1993 position. The problemis how to design

363

Probing the black box : experiments in design and design education  

E-Print Network [OSTI]

Conventional analysis and design methods based on preexisting methods and assumptions preconditions and limits the designer's level of engagement with the specific context that is under investigation. A structural analysis ...

Mulvey, Christopher P. (Christopher Paul), 1975-

2000-01-01T23:59:59.000Z

364

Design and Evaluation of High Capacity Cathodes  

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

to prepare advanced electrodes and surfaces with stable architectural designs Use atomic-scale modeling as a guide to identify, design and understand the structural...

365

The x-ray crystal structure analysis of the complex formed by trypsin with the thrombin inhibitor 4-chloro-3-ethoxy-7-guanidinoisocoumarin: implications for mechanism and drug design  

E-Print Network [OSTI]

THE X-RAY CRYSTAL STRUCTURE ANALYSIS OF THE COMPLEX FORMED BY TRYPSIN WITH THE THROMBIN INHIBITOR 4-CHLORO-3-ETHOXY-7-GUANIDINOISOCOUMARINr IMPLICATIONS FOR MECHANISM AND DRUG DESIGN A Thesis by MARGARET MEI-SHIN CHOW Submitted to the Office... INHIBITOR 4 ? CHLORO ? 3 ? ETHOXY-7-GUANIDINOISOCOUMARIN: IMPLICATIONS FOR MECHANISM AND DRUG DESIGN A Thesis by MARGARET MEI-SHIN CHOW Approved as to style and content by: E ga F. Meyer, (Chair of Committee) art unn (He d of epartment) C. Nxc Pace...

Chow, Margaret Mei-Shin

2012-06-07T23:59:59.000Z

366

Alternative energy design toolkit  

E-Print Network [OSTI]

This thesis concerns the concepts, structure, and applications of the Alternative Energy Design Toolkit. The toolkit is aimed to provide a widely accessible, easy to use, flexible, yet powerful modeling environment for ...

Sukkasi, Sittha

2004-01-01T23:59:59.000Z

367

Design for manufacturability Design verification  

E-Print Network [OSTI]

ITRS Design #12;Design · Design for manufacturability · Design verification #12;Design for Manufacturability · Architecture challenges · Logic and circuit challenges · Layout and physical design challenges · Expected to be the source of multiple DFM challenges · Invest in variability reduction or design

Patel, Chintan

368

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 17, NO. 1, JANUARY 2009 103 Hierarchical Segmentation for Hardware  

E-Print Network [OSTI]

) with a hierarchical segmentation scheme targeting hardware implementation. The methodology provides significant-mail: dongu@mojix.com). R. C. C. Cheung is with Solomon Systech Limited, Hong Kong (e-mail: cc- cheung

Luk, Wayne

369

A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real-World Electricity Pricing  

E-Print Network [OSTI]

1 A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real bills. Our focus is on a subset of this work that carries out demand response (DR) by modulating

Urgaonkar, Bhuvan

370

A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real-World Electricity Pricing  

E-Print Network [OSTI]

1 A Hierarchical Demand Response Framework for Data Center Power Cost Optimization Under Real for optimizing their utility bills. Our focus is on a subset of this work that carries out demand response (DR

Urgaonkar, Bhuvan

371

Comment on "Spin-glass attractor on tridimensional hierarchical lattices in the presence of an external magnetic field"  

E-Print Network [OSTI]

The effect of random or uniform magnetic fields on spin glasses on some d=3 hierarchical lattices has been studied, using renormalization-group theory, by Salmon and Nobre. In this work, the recursion relation for the ...

Berker, A. Nihat

372

The North American Carbon Program Multi-scale synthesis and Terrestrial Model Intercomparison Project Part 1: Overview and experimental design  

SciTech Connect (OSTI)

Terrestrial biosphere models (TBMs) have become an integral tool for extrapolating local observations and understanding of land-atmosphere carbon exchange to larger regions. The North American Carbon Program (NACP) Multi-scale synthesis and Terrestrial Model Intercomparison Project (MsTMIP) is a formal model intercomparison and evaluation effort focused on improving the diagnosis and attribution of carbon exchange at regional and global scales. MsTMIP builds upon current and past synthesis activities, and has a unique framework designed to isolate, interpret, and inform understanding of how model structural differences impact estimates of carbon uptake and release. Here we provide an overview of the MsTMIP effort and describe how the MsTMIP experimental design enables the assessment and quantification of TBM structural uncertainty. Model structure refers to the types of processes considered (e.g. nutrient cycling, disturbance, lateral transport of carbon), and how these processes are represented (e.g. photosynthetic formulation, temperature sensitivity, respiration) in the models. By prescribing a common experimental protocol with standard spin-up procedures and driver data sets, we isolate any biases and variability in TBM estimates of regional and global carbon budgets resulting from differences in the models themselves (i.e. model structure) and model-specific parameter values. An initial intercomparison of model structural differences is represented using hierarchical cluster diagrams (a.k.a. dendrograms), which highlight similarities and differences in how models account for carbon cycle, vegetation, energy, and nitrogen cycle dynamics. We show that, despite the standardized protocol used to derive initial conditions, models show a high degree of variation for GPP, total living biomass, and total soil carbon, underscoring the influence of differences in model structure and parameterization on model estimates.

Huntzinger, D.N. [Northern Arizona University] [Northern Arizona University; Schwalm, C. [Northern Arizona University] [Northern Arizona University; Michalak, A.M [Carnegie Institution for Science, Stanford] [Carnegie Institution for Science, Stanford; Schaefer, K. [National Snow and Ice Data Center] [National Snow and Ice Data Center; King, A.W. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Wei, Y. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Jacobson, A. [National Snow and Ice Data Center] [National Snow and Ice Data Center; Liu, S. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Cook, R. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Post, W.M. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Berthier, G. [Laboratoire des Sciences du Climat et de l'Environnement (LSCE)] [Laboratoire des Sciences du Climat et de l'Environnement (LSCE); Hayes, D. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Huang, M. [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Ito, A. [National Institute for Environmental Studies, Tsukuba, Japan] [National Institute for Environmental Studies, Tsukuba, Japan; Lei, H. [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Lu, C. [International Center for Climate and Global Change Research and School of Forestry and Wildlife Sci.] [International Center for Climate and Global Change Research and School of Forestry and Wildlife Sci.; Mao, J. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Peng, C.H. [University of Quebec at Montreal, Institute of Environment Sciences] [University of Quebec at Montreal, Institute of Environment Sciences; Peng, S. [Laboratoire des Sciences du Climat et de l'Environnement (LSCE)] [Laboratoire des Sciences du Climat et de l'Environnement (LSCE); Poulter, B. [Laboratoire des Sciences du Climat et de l'Environnement (LSCE)] [Laboratoire des Sciences du Climat et de l'Environnement (LSCE); Riccuito, D. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Shi, X. [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Tian, H. [International Center for Climate and Global Change Research and School of Forestry and Wildlife Sci.] [International Center for Climate and Global Change Research and School of Forestry and Wildlife Sci.; Wang, W. [National Aeronautics and Space Administration (NASA), Ames Research Center, Moffett Field] [National Aeronautics and Space Administration (NASA), Ames Research Center, Moffett Field; Zeng, N. [University of Maryland] [University of Maryland; Zhao, F. [University of Maryland] [University of Maryland; Zhu, Q. [Laboratory for Ecological Forecasting and Northwest Agriculture and Forestry University] [Laboratory for Ecological Forecasting and Northwest Agriculture and Forestry University

2013-01-01T23:59:59.000Z

373

A hierarchical perspective on the ecology of biological invasions:: impact of red imported fire ants on grassland ecosystems  

E-Print Network [OSTI]

of the requirements for the degree of MASTER OF SCIENCE December 1992 Major Subject: Wildlife and Fisheries Sciences A HIERARCHICAL PERSPECTIVE ON THE ECOLOGY OF BIOLOGICAL INVASIONS: IMPACT OF RED IMPORTED FIRE ANTS ON GRASSLAND ECOSYSTEMS A Thesis Revin Lee...A HIERARCHICAL PERSPECTIVE ON THE ECOLOGY OF BIOLOGICAL INVASIONS: IMPACT OF RED IMPORTED FIRE ANTS ON GRASSLAND ECOSYSTEMS A Thesis REVIN LEE STOKER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Stoker, Revin Lee

1992-01-01T23:59:59.000Z

374

The Case for A Hierarchal System Model for Linux Clusters  

SciTech Connect (OSTI)

The computer industry today is no longer driven, as it was in the 40s, 50s and 60s, by High-performance computing requirements. Rather, HPC systems, especially Leadership class systems, sit on top of a pyramid investment mode. Figure 1 shows a representative pyramid investment model for systems hardware. At the base of the pyramid is the huge investment (order 10s of Billions of US Dollars per year) in semiconductor fabrication and process technologies. These costs, which are approximately doubling with every generation, are funded from investments multiple markets: enterprise, desktops, games, embedded and specialized devices. Over and above these base technology investments are investments for critical technology elements such as microprocessor, chipsets and memory ASIC components. Investments for these components are spread across the same markets as the base semiconductor processes investments. These second tier investments are approximately half the size of the lower level of the pyramid. The next technology investment layer up, tier 3, is more focused on scalable computing systems such as those needed for HPC and other markets. These tier 3 technology elements include networking (SAN, WAN and LAN), interconnects and large scalable SMP designs. Above these is tier 4 are relatively small investments necessary to build very large, scalable systems high-end or Leadership class systems. Primary among these are the specialized network designs of vertically integrated systems, etc.

Seager, M; Gorda, B

2009-06-05T23:59:59.000Z

375

An Information Services Algorithm to Heuristically Summarize IP Addresses for a Distributed, Hierarchical Directory Service  

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

information services algorithm to heuristically summarize IP addresses for a information services algorithm to heuristically summarize IP addresses for a distributed, hierarchical directory service Marcos Portnoi, Martin Swany Department of Computer and Information Sciences University of Delaware Newark, DE 19716, U.S.A. {portnoi, swany}@cis.udel.edu Jason Zurawski Internet2 Washington, DC 20036, U.S.A. zurawski@internet2.edu Abstract- A distributed, hierarchical information service for computer networks might use several service instances, located in different layers. A distributed directory service, for example, might be comprised of upper level listings, and local directories. The upper level listings contain a compact version of the local directories. Clients desiring to access the information contained in local directories might first access the

376

Hierarchical mesoporous/microporous carbon with graphitized frameworks for high-performance lithium-ion batteries  

SciTech Connect (OSTI)

A hierarchical meso-/micro-porous graphitized carbon with uniform mesopores and ordered micropores, graphitized frameworks, and extra-high surface area of ?2200 m{sup 2}/g, was successfully synthesized through a simple one-step chemical vapor deposition process. The commercial mesoporous zeolite Y was utilized as a meso-/ micro-porous template, and the small-molecule methane was employed as a carbon precursor. The as-prepared hierarchical meso-/micro-porous carbons have homogeneously distributed mesopores as a host for electrolyte, which facilitate Li{sup +} ions transport to the large-area micropores, resulting a high reversible lithium ion storage of 1000 mA h/g and a high columbic efficiency of 65% at the first cycle.

Lv, Yingying; Fang, Yin; Qian, Xufang; Tu, Bo [Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200433 (China); Wu, Zhangxiong [Department of Chemical Engineering, Monash University, Clayton, VIC 3800 (Australia); Asiri, Abdullah M. [Chemistry Department and The Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589 (Saudi Arabia); Zhao, Dongyuan, E-mail: dyzhao@fudan.edu.cn [Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200433 (China); Department of Chemical Engineering, Monash University, Clayton, VIC 3800 (Australia)

2014-11-01T23:59:59.000Z

377

Resource conservation through a hierarchical approach of mass and energy integration  

E-Print Network [OSTI]

RESOURCE CONSERVATION THROUGH A HIERARCHICAL APPROACH OF MASS AND ENERGY INTEGRATION A Dissertation by RUBAYAT MAHMUD Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... MAHMUD Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Mahmoud M. El-Halwagi Committee Members, Sam...

Mahmud, Rubayat

2006-04-12T23:59:59.000Z

378

Hierarchical logistic equation to describe the dynamical behavior of penetration rates  

E-Print Network [OSTI]

We propose a hierarchical logistic equation as a model to describe the dynamical behavior of a penetration rate of a prevalent stuff. In this model, a memory, how many people who already possess it a person who does not process it yet met, is considered, which does not exist in the logistic model. As an application, we apply this model to iPod sales data, and find that this model can approximate the data much better than the logistic equation.

Tashiro, Tohru; Chiba, Michiko

2012-01-01T23:59:59.000Z

379

Market segmentation of visitors to Fort Wilkins State Park using a hierarchical clustering approach  

E-Print Network [OSTI]

describe natural groupings of people. 16 In short, what direction does literature provide for this re- search project? Initially it was shown that state parks are for people. The objective of the parks is to provide satisfying ex- periences to park...MARKET SEGMENTATION OF VISITORS TO FORT WILKINS STATE PARK USING A HIERARCHICAL CLUSTERING APPROACH A Thesis by THOMAS MARK FISHER Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirement...

Fisher, Thomas Mark

2012-06-07T23:59:59.000Z

380

Hierarchical Assembly of Nanoparticle Superstructures from Block Copolymer-Nanoparticle Composites  

Science Journals Connector (OSTI)

We investigate the assembly of block copolymer-nanoparticle composite films on chemically nanopatterned substrates and present fully three-dimensional simulations of a coarse grain model for these hybrid systems. The location and distribution of nanoparticles within the ordered block copolymer domains depends on the thermodynamic state of the composite in equilibrium with the surface. Hierarchical assembly of nanoparticles enables applications in which the ability to precisely control their locations within periodic and nonregular geometry patterns and arrays is required.

Huiman Kang; François A. Detcheverry; Andrew N. Mangham; Mark P. Stoykovich; Kostas Ch. Daoulas; Robert J. Hamers; Marcus Müller; Juan J. de Pablo; Paul F. Nealey

2008-04-09T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Hierarchical heteroarchitectures functionalized membrane for high efficient water purification  

Science Journals Connector (OSTI)

Abstract Heterojunctioned architectures were facilely fabricated using hydrothermally treated electrospun TiO2 nanofibers in an alkaline Sr(NO3)2 precursor solution in an electronic oven. TiO2 on the fiber surface was partially dissolved into Ti4+ to react with Sr2+ in favor of the nucleation of SrTiO3 on TiO2 nanofibers, and thus a heterojunction was formed between SrTiO3 and TiO2, which will benefit the improvement of photocatalytic activity. And then a multifunctional membrane was created by functionalizing the surface of commercial cellulose acetate (CA) membrane with heterojunctioned SrTiO3/TiO2 nanofibers. This newly structured membrane exhibited excellent water purification performances in a concurrent photocatalytic membrane filtration system under the irradiation of UV light, because it is able to integrate the advantages of photocatalysis and membrane filtration while minimizes their disadvantages. The high water purification performances in terms of high photodegradation ability and high permeate flux are attributed to the high photocatalytic activity of heterojunctioned SrTiO3/TiO2 nanofibers architectures and their structured porous functional layer favorable for fast water pass through.

Hongwei Bai; Xiaoli Zan; Jermyn Juay; Darren Delai Sun

2015-01-01T23:59:59.000Z

382

Hierarchical Petascale Simulation Framework For Stress Corrosion Cracking  

SciTech Connect (OSTI)

A number of major accomplishments resulted from the project. These include: • Data Structures, Algorithms, and Numerical Methods for Reactive Molecular Dynamics. We have developed a range of novel data structures, algorithms, and solvers (amortized ILU, Spike) for use with ReaxFF and charge equilibration. • Parallel Formulations of ReactiveMD (Purdue ReactiveMolecular Dynamics Package, PuReMD, PuReMD-GPU, and PG-PuReMD) for Messaging, GPU, and GPU Cluster Platforms. We have developed efficient serial, parallel (MPI), GPU (Cuda), and GPU Cluster (MPI/Cuda) implementations. Our implementations have been demonstrated to be significantly better than the state of the art, both in terms of performance and scalability. • Comprehensive Validation in the Context of Diverse Applications. We have demonstrated the use of our software in diverse systems, including silica-water, silicon-germanium nanorods, and as part of other projects, extended it to applications ranging from explosives (RDX) to lipid bilayers (biomembranes under oxidative stress). • Open Source Software Packages for Reactive Molecular Dynamics. All versions of our soft- ware have been released over the public domain. There are over 100 major research groups worldwide using our software. • Implementation into the Department of Energy LAMMPS Software Package. We have also integrated our software into the Department of Energy LAMMPS software package.

Grama, Ananth

2013-12-18T23:59:59.000Z

383

Sliding coherence window technique for hierarchical detection of continuous gravitational waves  

SciTech Connect (OSTI)

A novel hierarchical search technique is presented for all-sky surveys for continuous gravitational-wave sources, such as rapidly spinning nonaxisymmetric neutron stars. Analyzing yearlong detector data sets over realistic ranges of parameter space using fully coherent matched-filtering is computationally prohibitive. Thus more efficient, so-called hierarchical techniques are essential. Traditionally, the standard hierarchical approach consists of dividing the data into nonoverlapping segments of which each is coherently analyzed, and subsequently the matched-filter outputs from all segments are combined incoherently. The present work proposes to break the data into subsegments shorter than the desired maximum coherence time span (size of the coherence window). Then matched-filter outputs from the different subsegments are efficiently combined by sliding the coherence window in time: Subsegments whose timestamps are closer than coherence window size are combined coherently, otherwise incoherently. Compared to the standard scheme at the same coherence time baseline, data sets longer by about 50-100% would have to be analyzed to achieve the same search sensitivity as with the sliding coherence window approach. Numerical simulations attest to the analytically estimated improvement.

Pletsch, Holger J. [Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut) and Leibniz Universitaet Hannover, Callinstrasse 38, D-30167 Hannover (Germany)

2011-06-15T23:59:59.000Z

384

Mutation of Surface Residues to Promote Crystallization of Activated Factor XI as a Complex with Benzamidine: an Essential Step for the Iterative Structure-Based Design of Factor XI Inhibitors  

SciTech Connect (OSTI)

Activated factor XI (FXIa) is a key enzyme in the amplification phase of the blood-coagulation cascade. Thus, a selective FXIa inhibitor may have lesser bleeding liabilities and provide a safe alternative for antithrombosis therapy to available drugs on the market. In a previous report, the crystal structures of the catalytic domain of FXIa (rhFXI370-607) in complex with various ecotin mutants have been described [Jin et al. (2005), Journal of Biological Chemistry 280, 4704-4712]. However, ecotin forms a matrix-like interaction with rhFXI370-607 and is impossible to displace with small-molecule inhibitors; ecotin crystals are therefore not suitable for iterative structure-based ligand design. In addition, rhFXI370-607 did not crystallize in the presence of small-molecule ligands. In order to obtain the crystal structure of rhFXI370-607 with a weak small-molecule ligand, namely benzamidine, several rounds of surface-residue mutation were implemented to promote crystal formation of rhFXI370-607. A quadruple mutant of rhFXI370-607 (rhFXI370-607-S434A, T475A, C482S, K437A) readily crystallized in the presence of benzamidine. The benzamidine in the preformed crystals was easily exchanged with other FXIa small-molecule inhibitors. These crystals have facilitated the structure-based design of small-molecule FXIa inhibitors.

Jin,L.; Pandey, P.; Babine, R.; Weaver, D.; Abdel-Meguid, S.; Stricker, J.

2005-01-01T23:59:59.000Z

385

Control of entity interactions in a hierarchical variable resolution simulation  

SciTech Connect (OSTI)

There has long been interest in variable resolution modeling to support military analysis for a broad range of interest areas. Despite the ever-present desire for models of greater fidelity at the expense of analysis and computation resources, models of moderate to low fidelity are still required at many levels of decision-making. Problems can arise due to the issue of consistency among the family of models used for analysis. To address this and other problems, models of variable resolution have been suggested. However, such variable resolution architectures inherently carry their own set of issues which must be resolved in order to be useful. First, what are the structural requirements for a variable resolution model; and second, how are interactions between entities governed, especially when the entities have different resolutions? This paper addresses these issues and discusses key mechanisms needed to develop a variable resolution combat simulation that meets several core requirements for such models: seamless aggregation/disaggregation, appropriate interactions between entities of differing resolution, and control of the aggregation/disaggregation process.

Powell, D.R.

1997-08-01T23:59:59.000Z

386

Control of entity interactions in a hierarchical variable resolution simulation  

SciTech Connect (OSTI)

There has long been interest in variable resolution modeling to support military analysis for a broad range of interest areas. Despite the ever-present desire for models of greater fidelity at the expense of analysis and computation resources, models of moderate to low fidelity are still required at many levels of decision-making. Problems can arise due to the issue of consistency among the family of models used for analysis. To address this and other problems, models of variable resolution have been suggested. However, such variable resolution architectures inherently carry their own set of issues which must be resolved in order to be useful. First, what are the structural requirements for a variable resolution model; and second, how are interactions between entities governed, especially when the entities have different resolutions? This paper addresses these issues and discusses key mechanisms needed to develop a variable resolution combat simulation that meets several core requirements for such models: seamless aggregation/disaggregation, appropriate interactions between entities of differing resolution, and control of the aggregation/disaggregation process.

Powell, D.R.

1997-10-01T23:59:59.000Z

387

Design operators  

E-Print Network [OSTI]

Design operators is a thesis that investigates the nature and characteristics of the design process by examining the interaction of computation with architectural design. The effects of the introduction of these media in ...

Dritsas, Stylianos, 1978-

2004-01-01T23:59:59.000Z

388

A procedural language for automated analog circuit design  

E-Print Network [OSTI]

Abstractions Hierarchical Net List Summary 67 71 76 79 84 87 V LAYOUT ALGORITHMS AND RESULTS 88 5. 1 5. 2 5. 3 5. 4 5. 5 Overview F loorp1 arming Placement Routing 5. 4. 1 Global Routing 5. 4. 2 Channel Routing Summary 88 89 97 99 100... the connectivity of the system. SYS MMS/BEHAVIORAL Frequency In F\\rucnoruAL (Discrete-Time/Conrinuous-Time) Fr Fe ~&- -4 Figure 2-1 Levels of Design Abstraction for Analog Integrated Circuits Beharrr'or let/el is the highest level of design abstraction...

Macaluso, Edmond Roy

2012-06-07T23:59:59.000Z

389

Preliminary Structural Design Conceptualization for Composite Rotor for Verdant Power Water Current: Cooperative Research and Development Final Report, CRADA Number CRD-08-296  

SciTech Connect (OSTI)

The primary thrust of the CRADA will be to develop a new rotor design that will allow higher current flows (>4m/s), greater swept area (6-11m), and in the process, will maximize performance and energy capture.

Hughes, S.

2011-02-01T23:59:59.000Z

390

for K and using a multistage structure, we can design an MP syn-thesis filter of very high order. Not only lowpass, but also high-  

E-Print Network [OSTI]

. Terndlogico Esq. Garcia Cubas, Celaya, Gto. Mixico) E-mail: Jdiaz@inaoep.mx 2 September 1997 References KALE reduction', IEEE Trans. Signal Processing, 1992, 40, (3), pp. 532- 542 SREERAM,v.,and AGATHOKLIS, P.: `Design of linear-phase IIR filters via impulse response grammians', IEEE Trans. Signal Processing, 1992

Plataniotis, Konstantinos N.

391

Design Aid Tools for User Interface Designers Harald Reiterer  

E-Print Network [OSTI]

guides, design guides), which may be encountered, learned, practised, and extended during ongoing use, structured, and organised ways to integrate the use of guide- lines, standards, and style guides. The volume of standards, style guides, and design guides now available to user interface designers

Reiterer, Harald

392

NREL: Computational Science - Inverse Design  

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

Inverse Design Inverse Design The NREL Computational Science Center collaborates with the High Throughput and Inverse Band Structure (HT/IBS) Group within the Center for Inverse Design (CID) to research, design, and create materials with given target properties. The Center for Inverse Design is an Energy Frontier Research Center of the U.S. Department of Energy Office of Science. To address a crucial scientific grand challenge, the Center is pursuing a new approach to material science. Rather than using the conventional direct approach ("Given the structure, find the electronic properties"), we are using a "materials by inverse design" approach ("Given the desired property, find the structure"). Illustration of a blue arrow pointing to a graphic with three curved lines that represent an electronic structure and blue arrow pointing to a red and blue balls that represent an atomic configuration.

393

Maintenance building structural design description: 4 x 350 MW(t) Modular HTGR [High-Temperature Gas-Cooled Reactor] Plant  

SciTech Connect (OSTI)

The Maintenance Building is a grade-founded, two-story, steel-framed structure, located adjacent to the Turbine Building in the Energy Conversion Area. It has a reinforced concrete foundation and slab on grade, and insulated sheet metal exterior walls and roof decking.

NONE

1986-06-01T23:59:59.000Z

394

Real-Time Combined Heat and Power Operational Strategy Using a Hierarchical Optimization Algorithm  

SciTech Connect (OSTI)

Existing attempts to optimize the operation of Combined Heat and Power (CHP) systems for building applications have two major limitations: the electrical and thermal loads are obtained from historical weather profiles; and the CHP system models ignore transient responses by using constant equipment efficiencies. This paper considers the transient response of a building combined with a hierarchical CHP optimal control algorithm to obtain a real-time integrated system that uses the most recent weather and electric load information. This is accomplished by running concurrent simulations of two transient building models. The first transient building model uses current as well as forecast input information to obtain short term predictions of the thermal and electric building loads. The predictions are then used by an optimization algorithm, i.e., a hierarchical controller, that decides the amount of fuel and of electrical energy to be allocated at the current time step. In a simulation, the actual physical building is not available and, hence, to simulate a real-time environment, a second, building model with similar but not identical input loads are used to represent the actual building. A state-variable feedback loop is completed at the beginning of each time step by copying, i.e., measuring, the state variable from the actual building and restarting the predictive model using these ?measured? values as initial conditions. The simulation environment presented in this paper features nonlinear effects such as the dependence of the heat exchanger effectiveness on their operating conditions. The results indicate that the CHP engine operation dictated by the proposed hierarchical controller with uncertain weather conditions have the potential to yield significant savings when compared to conventional systems using current values of electricity and fuel prices.

Yun, Kyung Tae; Cho, Heejin; Luck, Rogelio; Mago, Pedro J.

2011-06-01T23:59:59.000Z

395

WExplore: Hierarchical Exploration of High-Dimensional Spaces Using the Weighted Ensemble Algorithm  

Science Journals Connector (OSTI)

As most relevant motions in biomolecular systems are inaccessible to conventional molecular dynamics simulations, algorithms that enhance sampling of rare events are indispensable. ... Here we present a strategy to circumvent this problem, by defining regions in a hierarchical fashion, which allows for a multiscale approach: regions are small enough to enhance small fluctuations that encourage escape from deep local minima but also have a wide reach to cover distant areas of the free energy landscape separated by large configurational changes. ... The weighted ensemble algorithm(2) enhances the sampling of these low-probability states by defining a set of regions that span the space, and enforcing that all regions are sampled evenly. ...

Alex Dickson; Charles L. Brooks; III

2014-02-03T23:59:59.000Z

396

Eight-band k·p modeling of InAs/InGaAsSb type-II W-design quantum well structures for interband cascade lasers emitting in a broad range of mid infrared  

SciTech Connect (OSTI)

Band structure properties of the type-II W-design AlSb/InAs/GaIn(As)Sb/InAs/AlSb quantum wells have been investigated theoretically in a systematic manner and with respect to their use in the active region of interband cascade laser for a broad range of emission in mid infrared between below 3 to beyond 10??m. Eight-band k·p approach has been utilized to calculate the electronic subbands. The fundamental optical transition energy and the corresponding oscillator strength have been determined in function of the thickness of InAs and GaIn(As)Sb layers and the composition of the latter. There have been considered active structures on two types of relevant substrates, GaSb and InAs, introducing slightly modified strain conditions. Additionally, the effect of external electric field has been taken into account to simulate the conditions occurring in the operational devices. The results show that introducing arsenic as fourth element into the valence band well of the type-II W-design system, and then altering its composition, can efficiently enhance the transition oscillator strength and allow additionally increasing the emission wavelength, which makes this solution prospective for improved performance and long wavelength interband cascade lasers.

Ryczko, K.; S?k, G.; Misiewicz, J. [Institute of Physics, Wroc?aw University of Technology, Wybrze?e Wyspia?skiego 27, 50-370 Wroc?aw (Poland)

2013-12-14T23:59:59.000Z

397

Hierarchical classification of G-Protein-Coupled Receptors with data-driven selection of attributes and classifiers  

Science Journals Connector (OSTI)

We address the important bioinformatics problem of predicting protein function from a protein's primary sequence. We consider the functional classification of G-Protein-Coupled Receptors (GPCRs), whose functions are specified in a class hierarchy. We tackle this task using a novel top-down hierarchical classification system where, for each node in the class hierarchy, the predictor attributes to be used in that node and the classifier to be applied to the selected attributes are chosen in a data-driven manner. Compared with a previous hierarchical classification system selecting classifiers only, our new system significantly reduced processing time without significantly sacrificing predictive accuracy.

A. Secker; M.N. Davies; A.A. Freitas; E.B. Clark; J. Timmis; D.R. Flower

2010-01-01T23:59:59.000Z

398

The 2dF Galaxy Redshift Survey: Hierarchical galaxy clustering  

E-Print Network [OSTI]

We use the two-degree field Galaxy Redshift Survey (2dFGRS) to test the hierarchical scaling hypothesis: namely, that the $p$-point galaxy correlation functions can be written in terms of the two point correlation function or variance. This scaling is expected if an initially Gaussian distribution of density fluctuations evolves under the action of gravitational instability. We measure the volume averaged $p$-point correlation functions using a counts in cells technique applied to a volume limited sample of 44,931 $L_*$ galaxies. We demonstrate that $L_{*}$ galaxies display hierarchical clustering up to order $p=6$ in redshift space. The variance measured for $L_{*}$ galaxies is in excellent agreement with the predictions from a $\\Lambda$-cold dark matter N-body simulation. This applies to all cell radii considered, $0.3<(R/h^{-1}{\\rm Mpc})<30$. However, the higher order correlation functions of $L_*$ galaxies have a significantly smaller amplitude than is predicted for the dark matter for $R<10h^{-1}$Mpc. This disagreement implies that a non-linear bias exists between the dark matter and $L_*$ galaxies on these scales. We also show that the presence of two rare, massive superclusters in the 2dFGRS has an impact on the higher-order clustering moments measured on large scales.

C. M. Baugh; D. J. Croton; E. Gaztanaga; P. Norberg; M. Colless; I. K. Baldry; J. Bland-Hawthorn; T. Bridges; R. Cannon; S. Cole; C. Collins; W. Couch; G. Dalton; R. De Propris; S. P. Driver; G. Efstathiou; R. S. Ellis; C. S. Frenk; K. Glazebrook; C. Jackson; O. Lahav; I. Lewis; S. Lumsden; S. Maddox; D. Madgwick; J. A. Peacock; B. A. Peterson; W. Sutherland; K. Taylor

2004-06-20T23:59:59.000Z

399

Design Competitions  

Broader source: Energy.gov [DOE]

National design competitions heighten awareness and market adoption of high-performance solid-state lighting products.

400

Hierarchical Diagnosis  

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

Theoretical Studies of Theoretical Studies of Radiative Properties of Broken Clouds G. A. Titov Institute of Atmospheric Optics Russian Academy of Science T omsk, Russia One of the three major goals of the Atmospheric Radiation Measurement (ARM) Program is to improve the quality of radiation models under clear sky, homogeneous cloud, and broken cloud conditions. This report is concerned with the development of the theory of radiation transfer in the broken clouds. Our approach is based on a stochastic description of the interaction between the radiation and cloud field with stochastic geometry; the main results are presented in Titov (1990, 1993). In the following, we discuss .the mean radiation fluxes in the near IR spectral range 2.7 to 3.2 ~m .the influence of random geometry of individual cumulus

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Hierarchical Diagnosis  

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

Development of a Rad iative Cloud Development of a Rad iative Cloud Parameterization Scheme of Stratocumulus and Stratus Clouds Which Includes the Impact of Cloud Condensation Nucleus on Cloud Albedo W. R. Cotton, G. L. Stephens, D. Duda, B. Stevens, and R. L. Walko Colorado State University Department of Atmospheric Science Fort Collins, CO G. Feingold Cooperative Institute for Research in Environmental Sciences University of Colorado, Boulder Boulder. CO 80309-0049 A three-dimensional (3-D) model for simulating the effect of enhanced cloud condensation nucleus (CCN) concentrations on stratocumulus clouds is presented. Results of two-dimensional (2-D) tests are discussed for a control run and a sensitivity run where CCN spectra were taken to be typical of clean marine conditions or mildly continental air, respectively. For a fivefold increase in

402

IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 31, NO. 1, JANUARY 2012 109 A Realistic Early-Stage Power Grid Verification  

E-Print Network [OSTI]

, JANUARY 2012 109 A Realistic Early-Stage Power Grid Verification Algorithm Based on Hierarchical, and Ngai Wong, Member, IEEE Abstract--Power grid verification has become an indispensable step to guarantee a functional and robust chip design. Vectorless power grid verification methods, by solving linear programming

Kahng, Andrew B.

403

Impact of community structure on information transfer  

E-Print Network [OSTI]

The observation that real complex networks have internal structure has important implication for dynamic processes occurring on such topologies. Here we investigate the impact of community structure on a model of information transfer able to deal with both search and congestion simultaneously. We show that networks with fuzzy community structure are more efficient in terms of packet delivery that those with pronounced community structure. We also propose an alternative packet routing algorithm which takes advantage of the knowledge of communities to improve information transfer and show that in the context of the model an intermediate level of community structure is optimal. Finally, we show that in a hierarchical network setting, providing knowledge of communities at the level of highest modularity will improve network capacity by the largest amount.

Danon, Leon; Diaz-Guilera, Albert

2007-01-01T23:59:59.000Z

404

Exploration tool for ObjTalk inheritance structures. The Browser  

SciTech Connect (OSTI)

The Browser is a tool for exploring hierarchical systems by providing visualizations of structure and content of the system's objects. The user must have some knowledge of ObjTalk in order to make use of the information provided by the Browser. The Browser uses the window-, menu- and icon-subsystem of the Wlisp environment. Inheritance hierarchies of ObjTalk classes can be shown using graphical representations. The definition of slots and methods can be inspected. 7 figs. (DWL)

Rathke, C.

1986-01-01T23:59:59.000Z

405

Hierarchical Diagnosis R. A. Kropfli, S. Y. Matrosov, T. Uttal, and B. W. Orr  

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

R. A. Kropfli, S. Y. Matrosov, T. Uttal, and B. W. Orr R. A. Kropfli, S. Y. Matrosov, T. Uttal, and B. W. Orr National Oceanic and Atmospheric Administration/Environmental Research Laboratories Wave Propagation Laboratory Boulder, CO 80303 I ntrod uction The WPL 8-mm wavelength radar was designed with good sensitivity and resolution to observe the small-scale structure and microphysical properties of clouds. DuringASTEX, for example, it observed, with 37-m resolution, all marine boundary layer (MBL) stratus and stratocumulus clouds within 5 km of the radar. More dense nonprecipitating clouds and very light drizzle were routinely observed to ranges exceeding 35 km. Characteristics of the radar are summarized in Table 1. A new offset Cassegrain antenna with good polarization performance is now being developed for this radar to study

406

LIMIT GIBBS DISTRIBUTIONS FOR THE ISING MODEL ON HIERARCHICAL LATTICES P. Bleher and E. Zalys UDC 519o21  

E-Print Network [OSTI]

LIMIT GIBBS DISTRIBUTIONS FOR THE ISING MODEL ON HIERARCHICAL LATTICES P. Bleher and E. Zalys UDC- cation of the widely known Ising model on the integral lattice Zd. One should note that the Ising model with this many authors have introduced various modifications of the Ising model, mean field model, spherical

Bleher, Pavel

407

Networks Spanish project COPABIB Group Murcia Group Polit. Valencia Group La Laguna Computation in heterogeneous-hierarchical  

E-Print Network [OSTI]

Networks Spanish project COPABIB Group Murcia Group Polit. Valencia Group La Laguna Computation in heterogeneous-hierarchical environments Project COPABIB: Univ. Alicante, Castell´on, La Laguna, Murcia COPABIB Group Murcia Group Polit. Valencia Group La Laguna Contents 1 Networks 2 Spanish project COPABIB 3

Giménez, Domingo

408

Hierarchical interconnections in the nano-composite material Bone: Fibrillar Cross-Links resist fracture on several length scales  

E-Print Network [OSTI]

Hierarchical interconnections in the nano-composite material Bone: Fibrillar Cross-Links resist bone samples, possibly resisting the propagation of these cracks. Bone is one of the most important collagen and hydroxyapatite. Such materials are based on the crystal-polymer interactions on the molecular

Fygenson, Deborah Kuchnir

409

X-Ray Volume Rendering by Hierarchical Wavelet Splatting Michel A. Westenberg and Jos B.T.M. Roerdink  

E-Print Network [OSTI]

X-Ray Volume Rendering by Hierarchical Wavelet Splatting Michel A. Westenberg and Jos B Groningen, The Netherlands michel@cs.rug.nl, roe@cs.rug.nl Abstract This paper is concerned with X-ray, and is faster by a factor of two to three. 1 Introduction X-ray volume rendering remains an interesting tech

Westenberg, Michel A.

410

Infinite Hidden Markov Models via the Hierarchical Dirichlet Process Matthew J. Beal # (presenting author) beal@cs.toronto.edu  

E-Print Network [OSTI]

Infinite Hidden Markov Models via the Hierarchical Dirichlet Process Matthew J. Beal # (presenting author) beal@cs.toronto.edu Yee Whye Teh + ywteh@eecs.berkeley.edu Michael I. Jordan + jordan model (iHMM) of Beal et al. [2]. The iHMM is a hidden Markov model (HMM) in which the number of hidden

Beal, Matt J.

411

The design of an optical sensor arrangement for the detection of oil contamination in an adhesively bonded structure of a liquefied natural gas (LNG) ship  

Science Journals Connector (OSTI)

Liquefied natural gas (LNG) has been widely used as a substitute fuel for commercial purposes. It is transported mainly by LNG ships which have primary and secondary leakage barriers. The former is composed of welded thin stainless steel or invar plates, while the latter is composed of adhesively bonded glass composite or aluminum foil sheets. The role of the secondary barrier is to maintain fluid tightness when the primary barrier fails during the transport of LNG. The tightness of the secondary barrier is dependent on the wetting characteristics between the adhesive and adherend of the bonded structure during bonding operation, which depends much on the contamination on the adherend surface. Therefore, in this work, an optical measuring device of oil contamination on the aluminum surface for the secondary barrier was developed. A transparent oil was used as the contaminant and its effect on the bonding strength was investigated. From the experiments, it has been found that the developed measuring device for oil contamination can be used to detect oil contamination on a large bonding area of the secondary barrier in ship building yards.

Bu Gi Kim; Dai Gil Lee

2009-01-01T23:59:59.000Z

412

Conceptual design report: Nuclear materials storage facility renovation. Part 5, Structural/seismic investigation. Section A report, existing conditions calculations/supporting information  

SciTech Connect (OSTI)

The Nuclear Materials Storage Facility (NMSF) at the Los Alamos National Laboratory (LANL) was a Fiscal Year (FY) 1984 line-item project completed in 1987 that has never been operated because of major design and construction deficiencies. This renovation project, which will correct those deficiencies and allow operation of the facility, is proposed as an FY 97 line item. The mission of the project is to provide centralized intermediate and long-term storage of special nuclear materials (SNM) associated with defined LANL programmatic missions and to establish a centralized SNM shipping and receiving location for Technical Area (TA)-55 at LANL. Based on current projections, existing storage space for SNM at other locations at LANL will be loaded to capacity by approximately 2002. This will adversely affect LANUs ability to meet its mission requirements in the future. The affected missions include LANL`s weapons research, development, and testing (WRD&T) program; special materials recovery; stockpile survelliance/evaluation; advanced fuels and heat sources development and production; and safe, secure storage of existing nuclear materials inventories. The problem is further exacerbated by LANL`s inability to ship any materials offsite because of the lack of receiver sites for mate rial and regulatory issues. Correction of the current deficiencies and enhancement of the facility will provide centralized storage close to a nuclear materials processing facility. The project will enable long-term, cost-effective storage in a secure environment with reduced radiation exposure to workers, and eliminate potential exposures to the public. Based upon US Department of Energy (DOE) Albuquerque Operations (DOE/Al) Office and LANL projections, storage space limitations/restrictions will begin to affect LANL`s ability to meet its missions between 1998 and 2002.

NONE

1995-07-14T23:59:59.000Z

413

Spatial Variation and Interpolation of Wind Speed Statistics and Its Implication in Design Wind Load.  

E-Print Network [OSTI]

??Consideration of wind load is important for design of engineered structures. Codification of wind load for structural design requires the estimation of the quantiles or… (more)

Ye, Wei

2013-01-01T23:59:59.000Z

414

An integrated workstation environment for design and evaluation of analog integrated circuits  

E-Print Network [OSTI]

, TABLE OF CONTENTS CHAPTER Page I INTRODUCTION A. B. C. D. E. F. G. H. Design aspects Scope of this thesis Analog design procedures Hierarchical design Behavioral simulation Using mathematical models for simulation Conclusion... Deliverables 1 1 2 3 5 5 8 9 II COMPONENTS OF THE SYSTEM 10 A. B. C. D. E. F. G. H. Introduction Hardware overview The HP 9000/310 workstation The HP 9000/318 workstations Addition of an HP 9000/332 Possible addition of a more powerful...

Soenen, Eric Georges

2012-06-07T23:59:59.000Z

415

Design and Evaluation of Novel High Capacity Cathode Materials...  

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

processing routes to prepare advanced electrodes with new architectural designs Use atomic-scale modeling as a guide to identify, design and understand the structural...

416

Energy Efficient Industrial Building Design  

E-Print Network [OSTI]

The design of industrial buildings today is still largely unaffected by energy legislation and building technologies. The present corporate tax structures for industry do little to encourage investment of capital for future operating cost savings...

Holness, G. V. R.

1983-01-01T23:59:59.000Z

417

Ranking municipal solid waste treatment alternatives considering sustainability criteria using the analytical hierarchical process tool  

Science Journals Connector (OSTI)

Abstract The establishment of an integrated rational waste management system is a complex issue, which has to be clearly investigated and a widespread variety of environmental, social and economic criteria should be taken into consideration. Each different waste treatment alternative provides a specific environmental, social and economic performance. Therefore, the crucial environmental, social and economic criteria need to be identified, estimated and thoroughly examined. In this manuscript, mechanical biological aerobic treatment without RDF energy recovery, mechanical biological anaerobic treatment and incineration with energy recovery are compared and finally ranked according to their environmental, social and economic performance. Analytical hierarchical process was used to rank the performance in three examined pillars in the capacity range of 70–90 kt. Incineration with energy recovery provides best performance due to the high amount of generated energy, whereas the other two options provide less capital costs. However, the performance of each treatment alternative is strongly dependent on the selection and weight of criteria.

I.-S. Antonopoulos; G. Perkoulidis; D. Logothetis; C. Karkanias

2014-01-01T23:59:59.000Z

418

Photo-driven autonomous hydrogen generation system based on hierarchically shelled ZnO nanostructures  

SciTech Connect (OSTI)

A quantum dot semiconductor sensitized hierarchically shelled one-dimensional ZnO nanostructure has been applied as a quasi-artificial leaf for hydrogen generation. The optimized ZnO nanostructure consists of one dimensional nanowire as a core and two-dimensional nanosheet on the nanowire surface. Furthermore, the quantum dot semiconductors deposited on the ZnO nanostructures provide visible light harvesting properties. To realize the artificial leaf, we applied the ZnO based nanostructure as a photoelectrode with non-wired Z-scheme system. The demonstrated un-assisted photoelectrochemical system showed the hydrogen generation properties under 1 sun condition irradiation. In addition, the quantum dot modified photoelectrode showed 2 mA/cm{sup 2} current density at the un-assisted condition.

Kim, Heejin; Yong, Kijung [Surface Chemistry Laboratory of Electronic Materials, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784 (Korea, Republic of)] [Surface Chemistry Laboratory of Electronic Materials, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784 (Korea, Republic of)

2013-11-25T23:59:59.000Z

419

An automated framework for hierarchical reconstruction of B mesons at the Belle II experiment  

E-Print Network [OSTI]

We present a software framework for Belle II that reconstructs B mesons in many decay modes with minimal user intervention. It does so by reconstructing particles in user-supplied decay channels, and then in turn using these reconstructed particles in higher-level decays. This hierarchical reconstruction allows one to cover a relatively high fraction of all B decays by specifying a limited number of particle decays. Multivariate classification methods are used to achieve a high signal-to-background ratio in each individual channel. The entire reconstruction, including the application of pre-cuts and classifier trainings, is automated to a high degree and will allow users to retrain to account for analysis-specific signal-side selections.

Pulvermacher, Christian; Feindt, Michael; Heck, Martin; Kuhr, Thomas

2014-01-01T23:59:59.000Z

420

An automated framework for hierarchical reconstruction of B mesons at the Belle II experiment  

E-Print Network [OSTI]

We present a software framework for Belle II that reconstructs B mesons in many decay modes with minimal user intervention. It does so by reconstructing particles in user-supplied decay channels, and then in turn using these reconstructed particles in higher-level decays. This hierarchical reconstruction allows one to cover a relatively high fraction of all B decays by specifying a limited number of particle decays. Multivariate classification methods are used to achieve a high signal-to-background ratio in each individual channel. The entire reconstruction, including the application of pre-cuts and classifier trainings, is automated to a high degree and will allow users to retrain to account for analysis-specific signal-side selections.

Christian Pulvermacher; Thomas Keck; Michael Feindt; Martin Heck; Thomas Kuhr

2014-10-13T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Performing a scatterv operation on a hierarchical tree network optimized for collective operations  

DOE Patents [OSTI]

Performing a scatterv operation on a hierarchical tree network optimized for collective operations including receiving, by the scatterv module installed on the node, from a nearest neighbor parent above the node a chunk of data having at least a portion of data for the node; maintaining, by the scatterv module installed on the node, the portion of the data for the node; determining, by the scatterv module installed on the node, whether any portions of the data are for a particular nearest neighbor child below the node or one or more other nodes below the particular nearest neighbor child; and sending, by the scatterv module installed on the node, those portions of data to the nearest neighbor child if any portions of the data are for a particular nearest neighbor child below the node or one or more other nodes below the particular nearest neighbor child.

Archer, Charles J; Blocksome, Michael A; Ratterman, Joseph D; Smith, Brian E

2013-10-22T23:59:59.000Z

422

Stanford University Sustainable Design & Construction Program  

E-Print Network [OSTI]

March 14, 2014 Y2E2 Building, Room 292E 473 Via Ortega, Stanford, CA 94305 #12;Sustainable DesignStanford University Sustainable Design & Construction Program 2014-2015 Admitted Student Open House for sophisticated structural/construction engineers " Support Design-Build Firms, Design Firms, Construction Firms

Prinz, Friedrich B.

423

Effectiveness and design of sparse process flexibilities  

E-Print Network [OSTI]

The long chain has been an important concept in the design of flexible processes. This design concept, as well as other sparse flexibility structures, have been applied by the automotive and other industries as a way to ...

Wei, Yehua, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

424

Transparant ductility: Reinforcing a structural glass girder:.  

E-Print Network [OSTI]

??Transparency and light are hot items in building design and massive structural elements often form an unwelcome necessity for architects. The structural use of glass… (more)

Rademakers, M.

2009-01-01T23:59:59.000Z

425

Design Specifications  

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

Design Design Specifications Services Overview ECS Audio/Video Conferencing Fasterdata IPv6 Network Network Performance Tools (perfSONAR) ESnet OID Registry PGP Key Service Virtual Circuits (OSCARS) OSCARS Case Study Documentation User Manual FAQ Design Specifications Functional Specifications Notifications Publications Authorization Policy Default Attributes Message Security Clients For Developers Interfaces Links Hardware Requirements DOE Grids Service Transition Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Design Specifications OSCARS Reservation Manager - Design Specifications Year 3 Update (DRAFT) David Robertson, Chin Guok

426

A direct displacement-based design of low-rise seismic resistant steel moment frames  

E-Print Network [OSTI]

Lateral Force Distribution for Seismic Design StructuralLateral Force Distribution for Seismic Design . 169stiffness distribution are additional design choices that

Harris, John L.

2006-01-01T23:59:59.000Z

427

Extraction of design rules from multi-objective design exploration (MODE) using rough set theory  

Science Journals Connector (OSTI)

Multi-objective design exploration (MODE) and its application for design rule extraction are presented. MODE reveals the structure of design space from the trade-off information. The self-organizing map (SOM) is incorporated into MODE as a visual data-mining tool for design space. SOM divides the design space into clusters with specific design features. The sufficient conditions for belonging to a cluster of interest are extracted using rough set theory. The resulting MODE was applied to the multidisciplinary wing design problem, which revealed a cluster of good designs, and we extracted the design rules of such designs successfully.

Shigeru Obayashi

2011-01-01T23:59:59.000Z

428

Chapter 6 - Offshore Structural Analysis  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses the primary considerations that the design engineer should bear in mind during the initial design and subsequent structural analysis. The designer is faced with a large number of rules, codes, standards, and specifications describing the general policy for structural systems and the detailed design of structural components, which includes government requirements, certification/classification authorities, and other technical documents. The notation “Structures” refers to all types of marine units ranging from floating ship-shaped vessels to bottom founded platforms. Emphasis has been placed on ship-shaped structures. Consideration is also given to column-supported structures, e.g., semi-submersibles, tension leg platforms, spars, and mooring buoys, etc., and also to steel bottom founded offshore structures, such as fixed steel jackets. The main output of the planning process is a “Design Basis,” describing the criteria and a “Design Brief,” describing the procedure to be followed and software to be used. This chapter discusses the finite element method, which is a powerful computational tool that has been widely used in the design of complex marine structures over the decades. This chapter gives a general overview for the design of marine structures using a finite element modeling technique. It also addresses structural modeling defined by industry codes for fixed platforms and floating production installations. Throughout this chapter, emphasis is placed on the design process where the finite element analysis will be employed.

Yong Bai

2003-01-01T23:59:59.000Z

429

Career Map: Design Engineer | Department of Energy  

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

generator design and power control, tower and structural issues, mechanical and aerodynamic noise, blade pitch control and offshore installation and operation. In addition to...

430

Financing Program Design and Implementation Considerations  

Broader source: Energy.gov [DOE]

Designing and implementing clean energy financing programs takes more than simply identifying applicable financing structures and implementing them. State and local governments should also take...

431

Catalyst by Design - Theoretical, Nanostructural, and Experimental...  

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

Treatment The overlap among theory, structure, and fully formed catalysts form the foundation of this study deer09narula.pdf More Documents & Publications Catalyst by Design -...

432

Investigation of deployable structures and their actuation  

E-Print Network [OSTI]

Deployable Structures had not been designed for use in the oil field industry, and additionally have not been designed as devices to perform mechanical work. By analyzing deployable structures a detailed understanding of ...

Munro, Logan

2007-01-01T23:59:59.000Z

433

Design Considerations  

Office of Environmental Management (EM)

and leakage rates into and out of the cleanup system tend to become additional factors that must be considered in the overall design of the facility. When cleanup systems...

434

Biosystems Design  

Broader source: Energy.gov [DOE]

Breakout Session 2: Frontiers and Horizons Session 2-A: Synthetic Biology and the Promise of Biofuels Pablo Rabinowicz, Program Manager, Biosystems Design Program, Biological and Environmental Research (BER), U.S. Department of Energy

435

PHYSICAL REVIEW E 87, 012814 (2013) Carbon-dioxide emissions trading and hierarchical structure in worldwide finance  

E-Print Network [OSTI]

of the stock market indicators and those of the EU CO2 emission allowance (EUA) and crude oil futures (WTI WTI) with that of the stock market indicators, and is markedly different (>20 days) from 0, showing

Stanley, H. Eugene

436

Characterizing the hierarchical structures of bioactive sol–gel silicate glass and hybrid scaffolds for bone regeneration  

Science Journals Connector (OSTI)

...vascularization and cell penetration. The scaffolds...and degradation rates. However, a full...100mum to allow cell penetration and blood vessels...resorbs at the same rate as that at which...vascularization and cell penetration. The scaffolds...and degradation rates. However, a full...

2012-01-01T23:59:59.000Z

437

Hierarchical micro and nano structured, hydrophilic, superhydrophobic and superoleophobic surfaces incorporated in microfluidics, microarrays and lab on chip microsystems  

Science Journals Connector (OSTI)

Abstract Control of wetting properties at the extremes of wetting states (superhydrophilic and superhydrophobic) is important for many applications, such as self-cleaning, anti-fogging, anti-icing, and antibacterial action. While significant effort has been devoted to develop and characterize such open surfaces for various applications, their incorporation in sensors, microfluidics, and labs on chip, offers new functional devices and systems, and poses different requirements compared to open-area surfaces. In this paper, dedicated to the 30 year anniversary of Microelectronic Engineering, we aim to review the extreme wetting states of surfaces, their fabrication processes focusing on plasma processing technology, and their incorporation into devices and systems. We start with an introduction and terminology for superhydrophilic, superhydrophobic, and superoleophobic surfaces, and continue with a review of the fabrication of such surfaces by plasma processing. We then review how such surfaces are incorporated in micr?devices and microsystems, and their applications. We address (a) Hydrophilic capillary pumps and superhydrophobic valves, (b) Drag reduction in superhydrophobic microchannels and slip length increase, (c) Superhydrophobic surfaces for droplet manipulation, applied to chemical and biological analysis, (d) Biomolecule adsorption control on nanostructured surfaces, and (e) Cell adhesion on such surfaces. Finally, we conclude with perspectives and challenges.

Evangelos Gogolides; Kosmas Ellinas; Angeliki Tserepi

2015-01-01T23:59:59.000Z

438

Generalized Nuclear Data: A New Structure (with Supporting Infrastructure) for Handling Nuclear Data  

SciTech Connect (OSTI)

The Evaluated Nuclear Data File (ENDF) format was designed in the 1960s to accommodate neutron reaction data to support nuclear engineering applications in power, national security and criticality safety. Over the years, the scope of the format has been extended to handle many other kinds of data including charged particle, decay, atomic, photo-nuclear and thermal neutron scattering. Although ENDF has wide acceptance and support for many data types, its limited support for correlated particle emission, limited numeric precision, and general lack of extensibility mean that the nuclear data community cannot take advantage of many emerging opportunities. More generally, the ENDF format provides an unfriendly environment that makes it difficult for new data evaluators and users to create and access nuclear data. The Cross Section Evaluation Working Group (CSEWG) has begun the design of a new Generalized Nuclear Data (or 'GND') structure, meant to replace older formats with a hierarchy that mirrors the underlying physics, and is aligned with modern coding and database practices. In support of this new structure, Lawrence Livermore National Laboratory (LLNL) has updated its nuclear data/reactions management package Fudge to handle GND structured nuclear data. Fudge provides tools for converting both the latest ENDF format (ENDF-6) and the LLNL Evaluated Nuclear Data Library (ENDL) format to and from GND, as well as for visualizing, modifying and processing (i.e., converting evaluated nuclear data into a form more suitable to transport codes) GND structured nuclear data. GND defines the structure needed for storing nuclear data evaluations and the type of data that needs to be stored. But unlike ENDF and ENDL, GND does not define how the data are to be stored in a file. Currently, Fudge writes the structured GND data to a file using the eXtensible Markup Language (XML), as it is ASCII based and can be viewed with any text editor. XML is a meta-language, meaning that it has a primitive set of definitions for representing hierarchical data/text in a file. Other meta-languages, like HDF5 which stores the data in binary form, can also be used to store GND in a file. In this paper, we will present an overview of the new GND data structures along with associated tools in Fudge.

Mattoon, C.M. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore CA (United States)] [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore CA (United States); Beck, B.R.; Patel, N.R.; Summers, N.C.; Hedstrom, G.W. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore CA (United States)] [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore CA (United States); Brown, D.A. [National Nuclear Data Center, Upton NY (United States)] [National Nuclear Data Center, Upton NY (United States)

2012-12-15T23:59:59.000Z

439

Designing subwavelength-structured light sources  

E-Print Network [OSTI]

The laser has long been established as the best possible optical source for fundamental studies and applications requiring high field intensity, single mode operation, a high degree of coherence, a narrow linewidth and ...

Chua, Song Liang

2013-01-01T23:59:59.000Z

440

Transition metalphthalocyanines as structures for materials design  

SciTech Connect (OSTI)

Metallophthalocyanines have been used recently more and more for the preparation of materials, which exhibit interesting semiconducting and non-linear optical properties. A necessary condition for achieving, e.g. electrical properties of phthalocyanines [MacM(L)]{sub n} can be obtained by the so-called {open_quotes}shish kebab{close_quotes} approach in which transition metallomacrocycles (MacM) are linked together by bidentate bridging ligands (L). Such bridged macrocyclic metal compounds [MacM(L)]{sub n} with transition metals e.g. Fe, Ru, Os, Co, Rh in various oxidation states have been synthesized. In general, these complexes [MacM(L)]{sub n} are insoluble in organic solvents, however, soluble oligomers [R{sub 4}PcM(L)]{sub n} can be prepared using metallomacrocycles R{sub 4}PcM, R = t-bu, et, M = Fe, Ru. The influence of the bridging ligand on the conductivity of the bridged phthalocyaninato and 2,3-naphthalocyaninatotransition metal complexes is studied. As bridging ligand mostly pyrazine (pyz), 1,4-diisocyanobenzene (dib), tetrazine (tz) is used. [MacM(tz)]{sub n} exhibit intrinsic conductivities. The synthesis and characterization of [PcM(tz)], with M = Fe, Ru, Os and [2,3-NcFe(tz)]{sub n} is described. Powder conductivities in the order of 0.1 S/cm can be reached by using s-tetrazine, but also substituted tetrazine e.g. 3,6-dimethyl-s-tetrazine (me{sub 2}tz) are used as the bridging ligands in such complexes.

Hanack, M. [Universitaet Tuebingen (Germany)

1993-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

System 80+{trademark} Standard Design: CESSAR design certification. Volume 3: Amendment I  

SciTech Connect (OSTI)

This report, entitled Combustion Engineering Standard Safety Analysis Report - Design Certification (CESSAR-DC), has been prepared in support of the industry effort to standardize nuclear plant designs. These documents describe the Combustion Engineering, Inc. System 80+{sup TM} Standard Design. This report, Volume 3, in conjunction with Volume 2, provides the design of structures, components, equipment and systems.

Not Available

1990-12-21T23:59:59.000Z

442

System 80+{trademark} Standard Design: CESSAR design certification. Volume 2: Amendment I  

SciTech Connect (OSTI)

This report, entitled Combustion Engineering Standard Safety Analysis Report - Design Certification (CESSAR-DC), has been prepared in support of the industry effort to standardize nuclear plant designs. These documents describe the Combustion Engineering, Inc. System 80+{sup TM} Standard Design. This report, Volume 2, in conjunction with Volume 3, provides the design of structures, components, equipment and systems.

Not Available

1990-12-21T23:59:59.000Z

443

Ionic liquid assisted hydrothermal fabrication of hierarchically organized ?-AlOOH hollow sphere  

SciTech Connect (OSTI)

Highlights: ? The ?-AlOOH hollow spheres were synthesized via an ionic liquid-assisted hydrothermal treatment. ? Ionic liquid plays an important role in the morphology of the product. ? Ionic liquid can be easily removed from the product and reused in next experiment. ? A “aggregation–solution–recrystallization” formation mechanism may occur in the system. -- Abstract: Hierarchically organized ?-AlOOH hollow spheres with nanoflake-like porous surface texture have been successfully synthesized via an ionic liquid-assisted hydrothermal synthesis method in citric acid monohydrate (CAMs). It was found that ionic liquid [bmim]{sup +}Cl{sup ?} played an important role in the morphology of the product due to its strong interactions with reaction particles. The samples were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscope (SEM) and Transmission Electron Microscopy (TEM). The results show that the product has narrow particle size distribution (500–900 nm particle diameter range), high specific surface area (240.5 m{sup 2}/g) and large pore volume (0.61 cm{sup 3}/g). The corresponding ?-Al{sub 2}O{sub 3} hollow spheres can be obtained by calcining it at 550 °C for 3 h. The proposed formation mechanism and other influencing factors of the ?-AlOOH hollow sphere material, such as reaction temperature, reaction duration, CAMs and urea, have also been investigated.

Tang, Zhe, E-mail: tangzhe1983@163.com [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China)] [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China); Liu, Yunqi, E-mail: liuyq@upc.edu.cn [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China)] [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China); Li, Guangci, E-mail: liguangci1984@yahoo.com.cn [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China)] [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China); Hu, Xiaofu, E-mail: hjj19850922@126.cn [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China)] [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China); Liu, Chenguang, E-mail: cgliu@upc.edu.cn [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China)] [State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corporation (CNPC), China University of Petroleum (East China), Qingdao 266555 (China)

2012-11-15T23:59:59.000Z

444

The History of the Baryon Budget: Cosmic Logistics in a Hierarchical Universe  

E-Print Network [OSTI]

Using a series of high-resolution N-body hydrodynamical numerical simulations, we investigate several scenarios for the evolution of the baryon budget in galactic halos. We derive individual halo star formation history (SFH), as well as the global star formation rate in the universe. We develop a simple analytical model that allows us to compute surprisingly accurate predictions, when compared to our simulations, but also to other simulations presented in Springel & Hernquist (2003). The model depends on two main parameters: the star formation time scale t* and the wind efficiency eta_w. We also compute, for halos of a given mass, the baryon fraction in each of the following phases: cold disc gas, hot halo gas and stars. Here again, our analytical model predictions are in good agreement with simulation results, if one correctly takes into account finite resolution effect. We compare predictions of our analytical model to several observational constraints, and conclude that a very narrow range of the model parameters is allowed. The important role played by galactic winds is outlined, as well as a possible `superwind' scenario in groups and clusters. The `anti-hierarchical' behavior of observed SFH is well reproduced by our best model with t*=3Gyr and eta_w=1.5. We obtain in this case a present-day cosmic baryon budget of Omega*= 0.004, Omega_cold=0.0004, Omega_hot=0.01 and Omega_back=0.02 (diffuse background).

Yann Rasera; Romain Teyssier

2005-05-23T23:59:59.000Z

445

The 2dF Galaxy Redshift Survey: voids and hierarchical scaling models  

E-Print Network [OSTI]

We measure the redshift space reduced void probability function (VPF) for 2dFGRS volume limited galaxy samples covering the absolute magnitude range M_bJ-5logh=-18 to -22. Theoretically, the VPF connects the distribution of voids to the moments of galaxy clustering of all orders, and can be used to discriminate clustering models in the weakly non-linear regime. The reduced VPF measured from the 2dFGRS is in excellent agreement with the paradigm of hierarchical scaling of the galaxy clustering moments. The accuracy of our measurement is such that we can rule out, at a very high significance, popular models for galaxy clustering, including the lognormal distribution. We demonstrate that the negative binomial model gives a very good approximation to the 2dFGRS data over a wide range of scales, out to at least 20h-1Mpc. Conversely, the reduced VPF for dark matter in a LambdaCDM universe does appear to be lognormal on small scales but deviates significantly beyond \\approx 4h-1Mpc. We find little dependence of the 2dFGRS reduced VPF on galaxy luminosity. Our results hold independently in both the north and south Galactic pole survey regions.

D. J. Croton; M. Colless; E. Gaztanaga; C. M. Baugh; P. Norberg; I. K. Baldry; J. Bland-Hawthorn; T. Bridges; R. Cannon; S. Cole; C. Collins; W. Couch; G. Dalton; R. De Propris; S. P. Driver; G. Efstathiou; R. S. Ellis; C. S. Frenk; K. Glazebrook; C. Jackson; O. Lahav; I. Lewis; S. Lumsden; S. Maddox; D. Madgwick; J. A. Peacock; B. A. Peterson; W. Sutherland; K. Taylor

2004-08-23T23:59:59.000Z

446

Aircraft Design  

Science Journals Connector (OSTI)

... his subject is more applied than academic, making it appear to be a designer's handbook rather than a student's text-book. Even then “he falls between two stools ... falls between two stools”, giving neither enough facts and figures for the one, nor fundamental proofs for the other. Nevertheless the subject matter, so far as it goes, ...

1940-03-09T23:59:59.000Z

447

DESIGN SUPPORT TOOLS 599 INTERNATIONAL DESIGN CONFERENCE -DESIGN 2012  

E-Print Network [OSTI]

DESIGN SUPPORT TOOLS 599 INTERNATIONAL DESIGN CONFERENCE - DESIGN 2012 Dubrovnik - Croatia, May 21 - 24, 2012. CAN COMPUTER GRAPHIC SYSTEM BE USED TO INFORM DESIGNERS ABOUT INCLUSIVITY? E. Zitkus, P. Langdon and P. J. Clarkson Keywords: inclusive design, accessibility, CAD, design process 1. Introduction

Crilly, Nathan

448

Meta-Design--Design for Designers Gerhard Fischer  

E-Print Network [OSTI]

1 Meta-Design--Design for Designers Gerhard Fischer Center for LifeLong Learning and Design (L3 D-0430 USA gerhard@cs.colorado.edu Eric Scharff Center for LifeLong Learning and Design (L3 D) Department scharffe@cs.colorado.edu ABSTRACT One fundamental challenge for the design of the interactive systems

Fischer, Gerhard

449

Hierarchical virtual screening for the discovery of new molecular scaffolds in antibacterial hit identification  

Science Journals Connector (OSTI)

...Cambridge, , Lensfield Road, Cambridge CB2 1EW...refilling the antibiotic pipeline, the discovery of...concentration, which implies crossing the bacterial membrane...of rational drug design approaches and the...implemented in drug design tools for decades...focus on the library design issue, although...

2012-01-01T23:59:59.000Z

450

Design/installation and structural integrity assessment under the Federal Facility Agreement for Bethel Valley low-level waste collection and transfer system upgrade for Building 2026 (High Radiation Level Analytical Laboratory) and Building 2099 (Monitoring and Control Station) at Oak Ridge National Laboratory  

SciTech Connect (OSTI)

This document presents a Design/Installation and Structural Integrity Assessment for a replacement tank system for portions of the Bethel Valley Low-Level Waste (LLW) System, located at the Oak Ridge Reservation, Oak Ridge, Tennessee. This issue of the assessment covers the design aspects of the replacement tank system, and certifies that the design has sufficient structural integrity and is acceptable for the storing or treating of hazardous and/or radioactive substances. This document will be reissued at a future date and will then include the assessment of the installation of the replacement tank system. The present issue identifies specific activities that must be completed during the fabrication, installation, and testing of the replacement tank system in order to provide assurance that the final installation complies with governing requirements.

Not Available

1994-11-01T23:59:59.000Z

451

Institute of Design Institute of Design  

E-Print Network [OSTI]

Institute of Design Institute of Design 350 N. LaSalle St. Chicago, IL 60610 312.595.4900 design The Institute of Design has continuously explored emerg- ing ideas about how design interacts with society languages and use of new media and material. The school was renamed the Institute of Design (ID) in 1944

Heller, Barbara

452

Functional Significance of Hierarchical Tiers in Carbonmonoxy Myoglobin:? Conformational Substates and Transitions Studied by Conformational Flooding Simulations  

Science Journals Connector (OSTI)

114,115 This limitation has prompted the development of several different MD techniques to improve the sampling of conformational space, such as simulated annealing,116,117 simulation of multiple short-time trajectories, 91,108,118,119 locally enhanced sampling,106 and conformational flooding (CF). ... When applied with the appropriate strength in the flooding simulation, it was expected to drive the structure from the original conformation into a new CS previously unexplored by the MD simulations. ... This illustrates that if the protein is not in the CS for which Vfl is designed (e.g., already flooded out of this valley), then its structure and dynamics are no longer affected by the flooding potential. ...

Brita G. Schulze; Helmut Grubmüller; Jeffrey D. Evanseck

2000-08-24T23:59:59.000Z

453

The Lifetime of Grand Design  

E-Print Network [OSTI]

The lifetime of the structure in grand design spiral galaxies is observationally ill-determined, but is essentially set by how accurately the pattern's rotation can be characterized by a single angular pattern speed. This paper derives a generalized version of the Tremaine-Weinberg method for observationally determining pattern speeds, in which the pattern speed is allowed to vary arbitrarily with radius. The departures of the derived pattern speed from a constant then provides a simple metric of the lifetime of the spiral structure. Application of this method to CO observations of NGC 1068 reveal that the pattern speed of the spiral structure in this galaxy varies rapidly with radius, and that the lifetime of the spiral structure is correspondingly very short. If this result turns out to be common in grand-design spiral galaxies, then these features will have to be viewed as highly transient phenomena.

M. R. Merrifield; R. J. Rand; S. E. Meidt

2005-11-02T23:59:59.000Z

454

ISG8-Structures  

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

Structures (WG4) Structures (WG4) Orange Rm H. Carter, T. Higo and J. Wang Parallel Sessions: Working Groups: WG1: Parameters, Design, Instrumentation and Tuning WG2: Damping Rings and ATF WG3: RF Sources WG4:Structures WG5: Ground Motion; Site Requirements and Investigations Goals Review of progress and experiences in design and fabrication. Review of high gradient tests. R&D plan and schedule through spring of 2003. Plan and schedule for production of 8-pack structures. Plan and schedule to document how to manufacture and process NLC/JLC accelerator structures. Preliminary Agenda Monday 9:00 Plenary 10:30 Coffee Break 11:00 – 12:00 Working Group Organization Opening Remarks - Dave Burke, Ron Ruth, Nobu Toge Discussion: Agenda and working group organization Lunch 13:30 – 15:30 High Gradient Test (Joint session with WG3)

455

Cross-Ontological Analytics: Combining Associative and Hierarchical Relations in the Gene Ontologies to Assess Gene Product Similarity  

SciTech Connect (OSTI)

Gene and gene product similarity is a fundamental diagnostic measure in analyzing biological data and constructing predictive models for functional genomics. With the rising influence of the gene ontologies, two complementary approaches have emerged where the similarity between two genes/gene products is obtained by comparing gene ontology (GO) annotations associated with the gene/gene products. One approach captures GO-based similarity in terms of hierarchical relations within each gene ontology. The other approach identifies GO-based similarity in terms of associative relations across the three gene ontologies. We propose a novel methodology where the two approaches can be merged with ensuing benefits in coverage and accuracy.

Posse, Christian; Sanfilippo, Antonio P.; Gopalan, Banu; Riensche, Roderick M.; Beagley, Nathaniel; Baddeley, Bob L.

2006-05-28T23:59:59.000Z

456

Design Editorial A Design Societies Federation  

E-Print Network [OSTI]

Journal of Mechanical Design Editorial A Design Societies Federation You can recognize the many faces of design by looking at the many different professional societies that promote design around the world. These societies may have roots in engineering or archi- tecture or industrial design but they all

Papalambros, Panos

457

Nuclear Reactor Safety Design Criteria  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The order establishes nuclear safety criteria applicable to the design, fabrication, construction, testing, and performance requirements of nuclear reactor facilities and safety class structures, systems, and components (SSCs) within these facilities. Cancels paragraphs 8a and 8b of DOE 5480.6. Cancels DOE O 5480.6 in part. Certified 11-18-10.

1993-01-19T23:59:59.000Z

458

APS Preliminary Beamline Design Report Guide  

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

PRELIMINARY BEAMLINE DESIGN REPORT PRELIMINARY BEAMLINE DESIGN REPORT December 5, 1994 5.1 Preliminary Beamline Design: General Guidelines The Preliminary Design of the beamline represents an approximately 30% design level of each of the beamline components. This level of design permits the CAT to develop cost estimates for the construction of the beamline, as well as a realistic timeline for completion of the construction tasks. A committee from the APS has been charged with reviewing the Preliminary Design Reports and has established the evaluation criteria described below. The Preliminary Beamline Report is expected to expand upon the Conceptual Design Report in the following areas: Beamline Layout Component Design Work Breakdown Structure Cost and Schedule Additional Operational Requirements

459

Hierarchical clustering and formation of power-law correlation in 1-dimensional self-gravitating system  

E-Print Network [OSTI]

The process of formation of fractal structure in one-dimensional self-gravitating system is examined numerically. It is clarified that structures created in small spatial scale grow up to larger scale through clustering of clusters, and form power-law correlation.

Hiroko Koyama; Tetsuro Konishi

2000-08-31T23:59:59.000Z

460

A Hierarchical Fuzzy Decision Support System for the Environmental Rehabilitation of Lake Koronia, Greece  

Science Journals Connector (OSTI)

This article presents the design of a fuzzy decision support system (DSS) for the assessment of alternative strategies proposed for the restoration of Lake Koronia, Greece. Fuzzy estimates for the critical cha...

Panagiotis Tzionas; Irene A. Ioannidou…

2004-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

Hierarchical Mixed-Domain Circuit Simulation, Synthesis and Extraction Methodology for MEMS  

Science Journals Connector (OSTI)

Emerging results for mixed-domain circuit simulation, a component-level synthesis strategy, and a layout extractor is presented for use in design of microelectromechanical systems (MEMS). The mixed-domain circuit representation is based on Kirchhoffian ...

Tamal Mukherjee; Gary K. Fedder

1999-07-01T23:59:59.000Z

462

Phonetic Classification Using Hierarchical, Feed-forward, Spectro-temporal Patch-based Architectures  

E-Print Network [OSTI]

A preliminary set of experiments are described in which a biologically-inspired computer vision system (Serre, Wolf et al. 2005; Serre 2006; Serre, Oliva et al. 2006; Serre, Wolf et al. 2006) designed for visual object ...

Rifkin, Ryan

2007-03-21T23:59:59.000Z

463

Phonetic Classification Using Hierarchical, Feed-forward, Spectro-temporal Patch-based Architectures  

E-Print Network [OSTI]

A preliminary set of experiments are described in which a biologically-inspired computer vision system (Serre, Wolf et al. 2005; Serre 2006; Serre, Oliva et al. 2006; Serre, Wolf et al. 2006) designed for visual object ...

Rifkin, Ryan

2007-02-01T23:59:59.000Z

464

Optimal design of actively cooled panels for hypersonic vehicles: A combined  

E-Print Network [OSTI]

Optimal design of actively cooled panels for hypersonic vehicles: A combined materials, Irvine The design of materials for the thermo-structural protection of fully reus- able hypersonic

Ponce, V. Miguel

465

MAS.961 Designing Sociable Media, Spring 2001  

E-Print Network [OSTI]

This course is about social life in the on-line world. Its focus is on how the design of the interface influences people's interactions with each other and shapes the cultural mores and structures they develop. We will ...

Donath, Judith S.

466

Bioinspired bubble design for particle generation  

Science Journals Connector (OSTI)

...Reports 1004 18 23 131 Bioinspired bubble design for particle generation Oguzhan...generate homogeneous particles from a bubble suspension, with the capability to control loading and the structure of bubbles. Ideally, a process such as this...

2012-01-01T23:59:59.000Z

467

GEOSYNTHETIC REINFORCEMENT IN LANDFILL DESIGN: US PERSPECTIVES  

E-Print Network [OSTI]

GEOSYNTHETIC REINFORCEMENT IN LANDFILL DESIGN: US PERSPECTIVES Jorge G. Zornberg1 , M. ASCE Abstract: Geosynthetic reinforcement in landfill applications in the US has involved conventional reinforced soil structures and veneer stabilization with reinforcements placed along the landfill slope

Zornberg, Jorge G.

468

Design/installation and structural integrity assessment under the Federal Facility Agreement for Bethel Valley Low-Level Waste Collection and Transfer System upgrade for Building 2026 (High Radiation Level Analytical Laboratory) and Building 2099 (Monitoring and Control Station) at Oak Ridge National Laboratory  

SciTech Connect (OSTI)

This document presents a Design/Installation and Structural Integrity Assessment for a replacement tank system for portions of the Bethel Valley Low Level Waste (LLW) System, located at the Oak Ridge Reservation, Oak Ridge, Tennessee. This issue of the assessment covers the design aspects of the replacement tank system, and certifies that the design has sufficient structural integrity and is acceptable for the storing or treating of hazardous and/or radioactive substances. The present issue identifies specific activities that must be completed during the fabrication, installation, and testing of the replacement tank system in order to provide assurance that the final installation complies with governing requirements. Portions of the LLW system are several decades old, or older, and do not comply with current environmental protection regulations. Several subsystems of the LLW system have been designated to receive a state-of-the-art replacement and refurbishment. One such subsystem serves Building 2026, the High Radiation Level Analytical Laboratory. This assessment focuses on the scope of work for the Building 2026 replacement LLW Collection and Transfer System, including the provision of a new Monitoring and Control Station (Building 2099) to receive, store, and treat (adjust pH) low level radioactive waste.

Not Available

1994-10-01T23:59:59.000Z

469

Design wiki: a system for design sharing  

E-Print Network [OSTI]

Design wiki: a system for design sharing Wael A. Abdelhameed, Yoshihiro Kobayashi #12;Wael of Bahrain. His research areas are 3D Modeling Systems, Computing Architecture, Virtual Reality, Design Process, Visual Design Thinking and Digital and Manual Media Interaction. Yoshihiro Kobayashi is a Faculty

470

Institute of Design Institute of Design  

E-Print Network [OSTI]

Institute of Design Institute of Design 350 N. LaSalle St. Chicago, IL 60610 312.595.4900 main 312.595.4906 graduate study information 312.595.4901 fax design@id.iit.edu www.id.iit.edu Dean: Patrick F. Whitney The Institute of Design (ID) is defined by a legacy of experimentation joined with unique academic programs

Heller, Barbara

471

College of Design ID Interior Design  

E-Print Network [OSTI]

College of Design ID Interior Design KEY: # = new course * = course changed = course dropped University of Kentucky 2013-2014 Undergraduate Bulletin 1 ID 101 INTRODUCTION TO INTERIOR DESIGN. (1) An introduction to the profession of Interior Design: historical perspective, career specializations, and career

MacAdam, Keith

472

Enhancing the Hierarchical Clustering Mechanism of Storing Resources’ Security Policies in a Grid Authorization System  

Science Journals Connector (OSTI)

Many existing grid authorization systems adopt an inefficient structure of storing security policies for the available resources, which reduces ... scalability and leads to huge repetitions in checking security r...

Mustafa Kaiiali; Rajeev Wankar; C. R. Rao…

2010-01-01T23:59:59.000Z

473

Viet-An Nguyen, Jordan Boyd-Graber, and Philip Resnik. Lexical and Hierarchical Topic Regression. Neural Information Processing Systems, 2013.  

E-Print Network [OSTI]

Viet-An Nguyen, Jordan Boyd-Graber, and Philip Resnik. Lexical and Hierarchical Topic Regression. Neural Information Processing Systems, 2013. @inproceedings{Nguyen:Boyd-Graber:Resnik-2013, Title = {Viet-An Nguyen and Jordan Boyd-Graber and Philip Resnik}, Year = {2013}, Location = {Lake Tahoe, Nevada

Boyd-Graber, Jordan

474

Modeling an automobile steering system using Axiomatic Design's Design Matrix and the Design Structure Matrix  

E-Print Network [OSTI]

The automobile steering system can be thought of as a system within a system. The steering system has clear functions and requirements as well as many interrelated components and subsystems including the front tires, wheels, ...

Bagley, Matthew R., 1966-

2005-01-01T23:59:59.000Z

475

Biosystem Dynamics & Design | EMSL  

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

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

476

Past and future of grid shell structures  

E-Print Network [OSTI]

Because of their original organic shape and the column free space that they provide, the design of grid shell structures challenges architects and structural engineers in more than one way. Very few grid shell building ...

Paoli, Céline (Céline Aude)

2007-01-01T23:59:59.000Z

477

GCFR core thermal-hydralic design  

SciTech Connect (OSTI)

The approach for developing the thermal-hydraulic core assembly designs for the gas-cooled fast reactor (GCFR) is reviewed, and key considerations for improving the core performance at all power and flow conditions are discussed. It is shown how the thermal-hydraulic core assembly designs evolve from evaluations of plant size, material limitations, safety criteria, and structural performance considerations.

Schleuter, G.; Baxi, C.B.; Bennett, F.O.

1980-05-01T23:59:59.000Z

478

Remote collaboration in the design studio  

E-Print Network [OSTI]

to the needs of a distributed architectural design studio. The Collaborative Online Architectural Design Studio (COADS) is based on a three-tier client-server structure consisting of an interface tier, an application-logic tier and a data tier. COADS allows...

George, Abey M.

2005-08-29T23:59:59.000Z

479

Design and Evaluation of Novel High Capacity Cathode Materials...  

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

surface and bulk stability of electrodes at high electrochemical potentials Use atomic-scale modeling as a guide to identify, design and understand the structural...

480

Analysis and design of cable-driven parallel kinematic mechanisms.  

E-Print Network [OSTI]

??This thesis concerns the analysis and design of cable-driven parallel mechanisms (CDPM). Structurally, a CDPM is formed by replacing the supporting legs of a parallel… (more)

Pham, Cong Bang.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hierarchical structure designed" 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

The design and development of aquatic exercise shoe flaps  

E-Print Network [OSTI]

A foam structure that is attached to the bottom of a shoe worn while exercising in the water was designed, developed, and prototyped. The structure freely bends downward so as to provide little resistance when the foot is ...

McKenney, Kyle S. (Kyle Scott)

2005-01-01T23:59:59.000Z

482

The architecture of the hierarchical triple star KOI 928 from eclipse timing variations seen in Kepler photometry  

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

We present a hierarchical triple star system (KIC 9140402) where a low mass eclipsing binary orbits a more massive third star. The orbital period of the binary (4.98829 Days) is determined by the eclipse times seen in photometry from NASA's Kepler spacecraft. The periodically changing tidal field, due to the eccentric orbit of the binary about the tertiary, causes a change in the orbital period of the binary. The resulting eclipse timing variations provide insight into the dynamics and architecture of this system and allow the inference of the total mass of the binary (0.424± 0.017M{circle_dot}) and the orbital parameters of the binary about the central star.

Steffen, J.H.; Quinn, S.N.; Borucki, W.J.; Brugamyer, E.; Bryson, S.T.; Buchhave, L.A.; Cochran, W.D.; Endl, M.; Fabrycky, D.C.; Ford, E.B.; Holman, M.J.

2011-07-05T23:59:59.000Z

483

SIGNAL PROCESSING USING LUT FILTERS BASED ON HIERARCHICAL VQ Ricardo L. de Queiroz1  

E-Print Network [OSTI]

density function). Simple, in theory, but the larger your codebook (larger M) the better the approximation sequence. VQ is fundamental to information theory since it allows us to approximate rate quality given a proper code- book design method. Hence, one might want to increase M. However, as M

de Queiroz, Ricardo L.

484

Market Design Test Environments  

SciTech Connect (OSTI)

Power industry restructuring continues to evolve at multiple levels of system operations. At the bulk electricity level, several organizations charged with regional system operation are implementing versions of a Wholesale Power Market Platform (WPMP) in response to U.S. Federal Energy Regulatory Commission initiatives. Recently the Energy Policy Act of 2005 and several regional initiatives have been pressing the integration of demand response as a resource for system operations. These policy and regulatory pressures are driving the exploration of new market designs at the wholesale and retail levels. The complex interplay among structural conditions, market protocols, and learning behaviors in relation to short-term and longer-term market performance demand a flexible computational environment where designs can be tested and sensitivities to power system and market rule changes can be explored. This paper presents the use of agent-based computational methods in the study of electricity markets at the wholesale and retail levels, and distinctions in problem formulation between these levels.

Widergren, Steven E.; Sun, Junjie; Tesfatsion, Leigh

2006-06-18T23:59:59.000Z

485

PHENIX Conceptual Design Report  

SciTech Connect (OSTI)

The PHENIX Conceptual Design Report (CDR) describes the detector design of the PHENIX experiment for Day-1 operation at the Relativistic Heavy Ion Collider (RHIC). The CDR presents the physics capabilities, technical details, cost estimate, construction schedule, funding profile, management structure, and possible upgrade paths of the PHENIX experiment. The primary goals of the PHENIX experiment are to detect the quark-gluon plasma (QGP) and to measure its properties. Many of the potential signatures for the QGP are measured as a function of a well-defined common variable to see if any or all of these signatures show a simultaneous anomaly due to the formation of the QGP. In addition, basic quantum chromodynamics phenomena, collision dynamics, and thermodynamic features of the initial states of the collision are studied. To achieve these goals, the PHENIX experiment measures lepton pairs (dielectrons and dimuons) to study various properties of vector mesons, such as the mass, the width, and the degree of yield suppression due to the formation of the QGP. The effect of thermal radiation on the continuum is studied in different regions of rapidity and mass. The e[mu] coincidence is measured to study charm production, and aids in understanding the shape of the continuum dilepton spectrum. Photons are measured to study direct emission of single photons and to study [pi][sup 0] and [eta] production. Charged hadrons are identified to study the spectrum shape, production of antinuclei, the [phi] meson (via K[sup +]K[sup [minus

Not Available

1993-01-29T23:59:59.000Z

486

Hierarchical community detection with applications to real-world network analysis  

Science Journals Connector (OSTI)

Community structure is ubiquitous in real-world networks and community detection is of fundamental importance in many applications. Although considerable efforts have been made to address the task, the objective of seeking a good trade-off between effectiveness ... Keywords: Community detection, Graph mining, Link analysis, Social network analysis

Bo Yang; Jin Di; Jiming Liu; Dayou Liu

2013-01-01T23:59:59.000Z

487

Extracting Ultra-Scale Lattice Boltzmann Performance via Hierarchical and Distributed Auto-Tuning  

E-Print Network [OSTI]

is appropriately addressing computation in the context of a hybrid communication infrastructure: shared memory platforms. Our exam- ined application is a structured grid-based Lattice Boltz- mann computation and energy requirements by up to 3.4Ã? using 49,152 cores, while providing a portable optimization methodology

488

Extracting Ultra-Scale Lattice Boltzmann Performance via Hierarchical and Distributed Auto-Tuning  

E-Print Network [OSTI]

computation in the context of a hybrid communication infrastructure: shared memory Permission to make digital platforms. Our exam- ined application is a structured grid-based Lattice Boltz- mann computation and energy requirements by up to 3.4Ã? using 49,152 cores, while providing a portable optimization methodology

Oliker, Leonid

489

Hierarchical 3D dendritic TiO2 nanospheres building with ultralong 1D nanoribbon/wires for high performance concurrent photocatalytic membrane water purification  

Science Journals Connector (OSTI)

Abstract Hierarchical 3D dendritic TiO2 nanospheres building with ultralong 1D TiO2 nanoribbon/wires were hydrothermally synthesized via controlling the hydrolysis rate of precursor by EG. It is found that the EG and Cl? in the precursor solution are the dominant factors in controlling the hydrolysis rate of Ti4+ from TTIP, and the growing direction of 1D TiO2, respectively. Through optimizing the molar ratio of TTIP:EG, hierarchical 3D dendritic TiO2 nanospheres building with long 1D nanoribbons (TiO2 nanoribbon spheres) were synthesized at a molar ratio of TTIP:EG = 1:2. And hierarchical 3D dendritic TiO2 nanospheres building with even longer and thinner 1D TiO2 nanowires (TiO2 nanowire spheres) were synthesized via further reducing the hydrolysis rate of Ti4+ by increasing the content of EG at a molar ratio of TTIP:EG = 1:3. The hierarchical 3D dendritic TiO2 nanoribbon/wire spheres were well characterized by a variety of techniques such as FESEM, TEM, XRD, N2 adsorption/desorption, UV–vis spectra, etc. A “win–win” strategy was developed to integrate the hierarchical TiO2 nanoribbon/wire spheres and membrane for high performance photocatalytic membrane water purification through maximizing the advantages of TiO2 photocatalysis and membrane, while minimizing their disadvantages. Hierarchical TiO2 nanoribbon/wire spheres exhibited high performance for water purification in terms of high flux, low fouling, high removal rate of pollutants, and long lifespan of membrane, both in concurrent dead end and cross flow membrane system. The rationale behind this phenomenon lies in that the hierarchical TiO2 nanoribbon/wire spheres in the concurrent system possess the advantages of mitigating the membrane fouling via photocatalytic degrading the organic pollutants relying on their high photocatalytic activities; and keeping high water flux owing to the porous functional layer favorable for water pass through. The experimental results demonstrated that the hierarchical TiO2 nanoribbon/wire spheres have better photodegradation ability of AO 7 and RhB pollutants so as to result in higher ability in mitigating fouling, and keep higher flux than TiO2 P25 under the same conditions. It is believable that this study is of great significances both in synthesizing hierarchical 3D dendritic TiO2 nanospheres building with ultralong 1D nanoribbon/wires, and in providing a “win–win” strategy for high performance concurrent photocatalytic membrane water purification featured as high flux, high removal rate of pollutants, low fouling and long membrane lifespan.

Hongwei Bai; Lei Liu; Zhaoyang Liu; Darren Delai Sun

2013-01-01T23:59:59.000Z

490

RNEDE: Resilient Network Design Environment  

SciTech Connect (OSTI)

Modern living is more and more dependent on the intricate web of critical infrastructure systems. The failure or damage of such systems can cause huge disruptions. Traditional design of this web of critical infrastructure systems was based on the principles of functionality and reliability. However, it is increasingly being realized that such design objectives are not sufficient. Threats, disruptions and faults often compromise the network, taking away the benefits of an efficient and reliable design. Thus, traditional network design parameters must be combined with self-healing mechanisms to obtain a resilient design of the network. In this paper, we present RNEDEa resilient network design environment that that not only optimizes the network for performance but tolerates fluctuations in its structure that result from external threats and disruptions. The environment evaluates a set of remedial actions to bring a compromised network to an optimal level of functionality. The environment includes a visualizer that enables the network administrator to be aware of the current state of the network and the suggested remedial actions at all times.

Venkat Venkatasubramanian, Tanu Malik, Arun Giridh; Craig Rieger; Keith Daum; Miles McQueen

2010-08-01T23:59:59.000Z

491

Structural elements with mathematically defined surfaces for enhanced structural and acoustic performance  

E-Print Network [OSTI]

Two design methods are explored to reduce vibration, minimize unwanted acoustic noise, and increase stiffness in structures. The first design approach is to create nearly isotropic panels with increased stiffness using ...

O'Sullivan, Donald Quinn, 1970-

2001-01-01T23:59:59.000Z

492

Design Guidelines INTRODUCTION  

E-Print Network [OSTI]

Design Guidelines March 2005 #12;INTRODUCTION INTENT The Boise State University (BSU) Design Guidelines are intended for the use by design professionals as a resource to facilitate the design of BSU design, construction and operation. The intent of these guidelines is to provide the information

Barrash, Warren

493

Making Argumentation Serve Design  

E-Print Network [OSTI]

9 Making Argumentation Serve Design Gerhard Fischer University ofColorado Andreas C. Lemke ALCATEL scientist interesled in design and design suppon S\\"Stems, particularly in domain-oriented design environmenlS and how they make :irgumemation serve design by supporting reflection-in-action; he

Fischer, Gerhard

494

Structural Genomics  

Science Journals Connector (OSTI)

Structural Genomics ... Structural genomics is the field of science focused on the systematic determination of the three-dimensional structure of the proteins encoded into genomes. ... Structural genomics is spreading the philosophy of high throughput in all fields of science and making available new tools to speed up research procedures. ...

Ivano Bertini

2003-03-01T23:59:59.000Z

495

Design, fabrication, and characterization of controllable conducting polymer actuation systems  

E-Print Network [OSTI]

The geometric, hierarchal, multifunctional composition of mammalian skeletal muscle and the neuromuscular system consists of actuation elements, length sensors, force sensors, localized energy storage, controlled energy ...

Paster, Eli (Eli Travis)

2010-01-01T23:59:59.000Z

496

Alignment of Self-Assembled Hierarchical Microstructure in Liquid Crystalline Diblock Copolymers Using High Magnetic Fields  

Science Journals Connector (OSTI)

Large area microdomain alignment in a ferroelectric liquid crystalline diblock copolymer (LCBCP) poly(styrene)-block-poly(isoprene-LC), (PS?PILC), incorporating a biphenyl 3-nitro-4-alkoxy-benzoate LC mesogenic group and a non-LC block hexagonally packed cylinder microstructure, was successfully accomplished by application of a magnetic field at elevated temperatures. ... Figure 1 Chemical structure of the PS?PILC diblock copolymers. ... PS?PILC ...

Chinedum Osuji; Paulo J. Ferreira; Guoping Mao; Christopher K. Ober; John B. Vander Sande; Edwin L. Thomas

2004-11-26T23:59:59.000Z

497

Computation & design for nanophotonics  

E-Print Network [OSTI]

The versatility of computational design as an alternative to design by nanofabrication has made computers a reliable design tool in nanophotonics. Given that almost any 2d pattern can be fabricated at infrared length scales, ...

Oskooi, Ardavan F

2010-01-01T23:59:59.000Z

498

Design that report!  

Science Journals Connector (OSTI)

Design that report! ... Describes the many considerations that must go into designing an effective technical report, and how they can be incorporated into instruction regarding this process. ...

James W. Southern

1951-01-01T23:59:59.000Z

499

ARIES-IV Nested Shell Blanket Design  

SciTech Connect (OSTI)

The ARIES-IV Nested Shell Blanket (NSB) Design is an alternate blanket concept of the ARIES-IV low activation helium-cooled reactor design. The reference design has the coolant routed in the poloidal direction and the inlet and outlet plena are located at the top and bottom of the torus. The NSB design has the high velocity coolant routed in the toroidal direction and the plena are located behind the blanket. This is of significance since the selected structural material is SiC-composite. The NSB is designed to have key high performance components with characteristic dimensions of no larger than 2 m. These components can be brazed to form the blanket module. For the diverter design, we eliminated the use of W as the divertor coating material by relying on the successful development of the gaseous divertor concept. The neutronics and thermal-hydraulic performance of both blanket concepts are similar. The selected blanket and divertor configurations can also meet all the projected structural, neutronics and thermal-hydraulics design limits and requirements. With the selected blanket and divertor materials, the design has a level of safety assurance rate of I (LSA-1), which indicates an inherently safe design.

Wong, C.P.C.; Redler, K.; Reis, E.E.; Will, R. [General Atomics, San Diego, CA (United States); Cheng, E. [TSI Research, Inc. (United States); Hasan, C.M.; Sharafat, S. [California Univ., Los Angeles, CA (United States)

1993-11-01T23:59:59.000Z

500

Structural health monitoring algorithm comparisons using standard data sets  

SciTech Connect (OSTI)

The real-world structures are subjected to operational and environmental condition changes that impose difficulties in detecting and identifying structural damage. The aim of this report is to detect damage with the presence of such operational and environmental condition changes through the application of the Los Alamos National Laboratory’s statistical pattern recognition paradigm for structural health monitoring (SHM). The test structure is a laboratory three-story building, and the damage is simulated through nonlinear effects introduced by a bumper mechanism that simulates a repetitive impact-type nonlinearity. The report reviews and illustrates various statistical principles that have had wide application in many engineering fields. The intent is to provide the reader with an introduction to feature extraction and statistical modelling for feature classification in the context of SHM. In this process, the strengths and limitations of some actual statistical techniques used to detect damage in the structures are discussed. In the hierarchical structure of damage detection, this report is only concerned with the first step of the damage detection strategy, which is the evaluation of the existence of damage in the structure. The data from this study and a detailed description of the test structure are available for download at: http://institute.lanl.gov/ei/software-and-data/.

Figueiredo, Eloi; Park, Gyuhae; Figueiras, Joaquim; Farrar, Charles; Worden, Keith

2009-03-01T23:59:59.000Z