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1

A machine that speeds up evolution is revolutionizing genome design A new tool for synthetic biology  

E-Print Network [OSTI]

Engineering (MAGE) The Principle of Accelerated Evolution · Synthetic DNA is repeatedy A new tool for synthetic biology We are in the midst of a genomic ("write") the DNA that makes up genomic information. However, current

Wood, Robert

2

Evaporative Evolution of Carbonate-Rich Brines from Synthetic Topopah Spring Tuff Pore Water, Yucca Mountain  

SciTech Connect (OSTI)

The evaporation of a range of synthetic pore water solutions representative of the potential high-level-nuclear-waste repository at Yucca Mountain, NV is being investigated. The motivation of this work is to understand and predict the range of brine compositions that may contact the waste containers from evaporation of pore waters, because these brines could form corrosive thin films on the containers and impact their long-term integrity. A relatively complex synthetic Topopah Spring Tuff pore water was progressively concentrated by evaporation in a closed vessel, heated to 95 C in a series of sequential experiments. Periodic samples of the evaporating solution were taken to determine the evolving water chemistry. According to chemical divide theory at 25 C and 95 C our starting solution should evolve towards a high pH carbonate brine. Results at 95 C show that this solution evolves towards a complex brine that contains about 99 mol% Na{sup +} for the cations, and 71 mol% Cl{sup -}, 18 mol% {Sigma}CO{sub 2}(aq), 9 mol%SO{sub 4}{sup 2-} for the anions. Initial modeling of the evaporating solution indicates precipitation of aragonite, halite, silica, sulfate and fluoride phases. The experiments have been used to benchmark the use of the EQ3/6 geochemical code in predicting the evolution of carbonate-rich brines during evaporation.

Sutton, M; Alai, M; Carroll, S A

2004-04-14T23:59:59.000Z

3

Dartmouth Stellar Evolution Database and the ACS Survey of Galactic Globular Clusters II. Stellar Evolution Tracks, Isochrones, Luminosity Functions, and Synthetic Horizontal-Branch Models  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Web tools are also available at the home page (http://stellar.dartmouth.edu/~models/index.html). These tools allow users to create isochrones and convert them to luminosity functions or create synthetic horizontal branch models.

Dotter, A; Chaboyer, B; Jevremovic, D; Kostov, V; Baron, E; Ferguson, J; Sarajedini, A; Anderson, J

4

Response to Comment on "Evolution of the Macondo Well Blowout: Simulating the Effects of the Circulation and Synthetic Dispersants  

E-Print Network [OSTI]

al.6 studied oil droplet diameters in a wave tank and measured mean oil droplet diameters (by mass al.1 to suggest the presence of gas bubbles can explain this purported increase the oil droplet size of the Circulation and Synthetic Dispersants on the Subsea Oil Transport" The comments by Adams et al.1 question

Paris-Limouzy, Claire B.

5

Synthetic Rubber  

Science Journals Connector (OSTI)

... acutely sensitive, justifiably, about synthetic rubber. His review of my book in NATURE of December 26, p. 751, is unfair in several respects. Undoubtedly, there are errors in ...

HARRY BARRON

1943-02-06T23:59:59.000Z

6

Handbook of Synthetic Photochemistry  

Science Journals Connector (OSTI)

Handbook of Synthetic Photochemistry ... Comprehensive overviews of synthetically relevant photochemical processes have appeared previously, most recently in Synthetic Organic Photochemistry, edited by Griesbeck and Mattay (2005), and in the CRC Handbook of Organic Photochemistry and Photobiology, edited by Horspool and Lenci (2004). ... Handbook of Synthetic Photochemistry . ...

Frederick G. West

2010-10-11T23:59:59.000Z

7

Synthetic biology: Cultural divide  

Science Journals Connector (OSTI)

... Currently based at the software-design firm Autodesk in San Francisco, California, Hessel represents an increasingly impatient and outspoken faction of synthetic ...

Bryn Nelson

2014-05-07T23:59:59.000Z

8

Formalizing Synthetic Domain Theory  

Science Journals Connector (OSTI)

Synthetic Domain Theory (SDT) is a constructive variant of Domain Theory where all functions are continuous following Dana Scott‘s idea of “domains as sets”. Recently there have been suggested more abstract axiomatizations encompassing ... Keywords: LCF, domain theory, formal verification, programming logics, synthetic domain theory, type theory

Bernhard Reus

1999-11-01T23:59:59.000Z

9

Designing Synthetic Biology  

Science Journals Connector (OSTI)

(14) The science of biology and the practice of engineering (knowing and making(15)) are especially connected in parts-based synthetic biology, where many engineers and scientists seek to “build life to understand it” through the assembly of standardized genetic modules. ... This iterative refinement of the refactored operon led to a detailed mapping of the genetic design space and an engineered pathway that produced wild-type levels of nitrogen fixation. ... (22) The positive feedback between science and engineering in synthetic biology has been compared to the history of other disciplines and industries, such as aviation(23) or synthetic chemistry. ...

Christina M. Agapakis

2013-10-24T23:59:59.000Z

10

Research Councils UK Synthetic biology  

E-Print Network [OSTI]

, bioinformatics approaches and DNA synthesis, all of which are central to the current field of synthetic biologyResearch Councils UK Synthetic biology #12;Synthetic biology Research funded by the Research them commercially. Synthetic biology is one of `Eight Great Technologies' identified by the Chancellor

Berzins, M.

11

Biodegradable synthetic bone composites  

DOE Patents [OSTI]

The invention provides for a biodegradable synthetic bone composition comprising a biodegradable hydrogel polymer scaffold comprising a plurality of hydrolytically unstable linkages, and an inorganic component; such as a biodegradable poly(hydroxyethylmethacrylate)/hydroxyapatite (pHEMA/HA) hydrogel composite possessing mineral content approximately that of human bone.

Liu, Gao; Zhao, Dacheng; Saiz, Eduardo; Tomsia, Antoni P.

2013-01-01T23:59:59.000Z

12

Life after the synthetic cell Natureaskedeightsynthetic-biologyexpertsabouttheimplicationsforscienceandsocietyofthe"synthetic  

E-Print Network [OSTI]

already had confidence in our ability to make synthetic DNA and get it to function in cells. The grandLife after the synthetic cell Natureaskedeightsynthetic-biologyexpertsabouttheimplicationsforscienceandsocietyofthe"synthetic"madebytheJ.CraigVenterInstitute(JCVI).Theinstitute'steamassembled,modifiedandimplanteda synthesizedgenomeintoaDNA-freebacterialshelltomakeaself-replicatingMycoplasmamycoides. The power and the pitfalls Mark

Goldberg, Bennett

13

Synthetic Rubber Production in Canada  

Science Journals Connector (OSTI)

... called the Polymer Corporation, Ltd., with headquarters in Toronto, which will undertake the production in Canada of synthetic ... in Canada of synthetic rubber of the Buna type. According to the Ottawa correspondent of The Times, Mr. ...

1942-03-21T23:59:59.000Z

14

INTRODUCTION Synthetic biology: history, challenges  

E-Print Network [OSTI]

at a rapid pace over the last 35 years, the cloning and assembly of synthetic DNA sequences remains a largely to establish improved software and bio- logical tools for the design and assembly of synthetic DNA synthetic systems to be described at the level of logical interactions between DNA

Haseloff, Jim

15

Synthetic Biology and Metabolic Engineering  

Science Journals Connector (OSTI)

As such, it deals with the engineering (design, construction, and optimization) of native as well as non-natural routes of product synthesis, aided in this task by the availability of synthetic DNA, the core enabling technology of synthetic biology. ... In this context, metabolic engineering is about engineering cell factories for the biological manufacturing of chemical and pharmaceutical products, whereas the main focus of synthetic biology is fundamental biological research facilitated by the use of synthetic DNA and genetic circuits. ... This was soon followed by the emergence of companies offering synthetic DNA as product. ...

Gregory Stephanopoulos

2012-11-01T23:59:59.000Z

16

Catalyst for splitting water &Catalyst for splitting water & Synthetic Modeling of InorganicSynthetic Modeling of Inorganic  

E-Print Network [OSTI]

Importance Hydrogen technology in fuel cellsHydrogen technology in fuel cells As a combustion fuel, it producesCatalyst for splitting water &Catalyst for splitting water & Synthetic Modeling of Inorganic of evolution ·Optimized catalyst for water splitting in all oxygenic phototrophs S0 S4 S1 S2 S3 O2 2 H O2 e- e

Petta, Jason

17

DISTRIBUTED AND COLLABORATIVE SYNTHETIC ENVIRONMENTS  

E-Print Network [OSTI]

the functions required for the geometric engine of a synthetic environment system. · A distribution on networked desktop machines. Geometric Engine A critical subsystem in all synthetic environment systems is the geometric engine, or the software module responsible for creating a realistic view of the simulated world

Texas at Austin, University of

18

Synthetic biology: Understanding biological design from synthetic circuits  

E-Print Network [OSTI]

An important aim of synthetic biology is to uncover the design principles of natural biological systems through the rational design of gene and protein circuits. Here, we highlight how the process of engineering biological ...

Mukherji, Shankar

19

Synthetic and Mechanistic Chemistry publications  

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

Synthetic and Mechanistic Chemistry » Synthetic and Mechanistic Chemistry » Synthetic and Mechanistic Synthetic and Mechanistic publications Research into alternative forms of energy, especially energy security, is one of the major national security imperatives of this century. Get Expertise Dave Thorn Chemistry Program Manager Email Josh Smith Chemistry Communications Email "Research into alternative forms of energy, of which biofuels is a key component, is one of the major national security imperatives of this century. Energy security is vital to our future national security and the efficient functioning of our market economy." -LANL Director Charles McMillan Harshini Mukundan, Hongzhi Xie, Aaron S. Anderson, W. Kevin Grace, John E. Shively, and Basil I. Swanson, "Optimizing a waveguide-based sandwich immunoassay for tumor biomarkers: Evaluating fluorescent labels and functional surfaces," Bioconjugate Chemistry 20(2), 222-230 (2009).

20

Exoelectron Emission from Synthetic Corundums  

Science Journals Connector (OSTI)

...Radiation Protection Dosimetry Article Exoelectron Emission from Synthetic Corundums M. Yousif Charif R. Gout J. Barthe M. Petel Corundums (Alpha Al2O3) have been synthesised by the thermal dehydration of hydrargilite (Al2O3, H2O......

M. Yousif Charif; R. Gout; J. Barthe; M. Petel

1983-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Monomers for Synthetic Rubber Production  

Science Journals Connector (OSTI)

The purpose of this chapter is to describe briefly industrial processes for the manufacture of the more common of the olefinic monomers which are used in the production of synthetic rubbers. Some indication of th...

D. C. Blackley B.Sc.; Ph.D.; F.P.R.I.

1983-01-01T23:59:59.000Z

22

Synthetic biology and crop engineering  

Broader source: Energy.gov [DOE]

Breakout Session 2: Frontiers and Horizons Session 2-A: Synthetic Biology and the Promise of Biofuels Jonathan Burbaum, Program Director, Department of Energy, Office of Science, ARPA–E

23

In Vitro Synthetic Transcriptional Networks Jongmin Kim  

E-Print Network [OSTI]

, we engineered artificial tran- scriptional networks consisting of synthetic DNA switches, regulated

Winfree, Erik

24

Physical Characteristics of Synthetic Rubbers  

Science Journals Connector (OSTI)

A summary of the nature and special applications of the more important types of synthetic rubbers is given. Two series of rubber and synthetic rubber stocks compounded on the basis of comparable pigmentation were selected for study. In addition to the conventional physical properties (tensile strength and elongation at rupture modulus aging etc.) a number of other mechanical properties such as dynamic rigidity hysteresis loss ``blowout resistance '' ``running temperature '' and tensile strength at elevated temperature were measured. Swelling tests in various solvents were also made. Results are plotted in the form of correlation charts in an effort to select proper methods of measurement. Some observations on comparative service tests in tires in the case of three synthetic rubbers indicate them to be satisfactory on a quality basis for use in time of emergency. The importance of care in selecting the proper physical tests and methods of analysis is emphasized in the light of the results given. It is concluded that rubbertesting techniques and interpretation must be modified in certain instances in evaluating synthetic rubber stocks.

J. N. Street; J. H. Dillon

1941-01-01T23:59:59.000Z

25

Guest Editors' Introduction: Synthetic Biology  

E-Print Network [OSTI]

(microbial production of diesel fuels from fatty acids in Escherichia coli (E. coli) and yeast+ undergraduate participants from around the world. Synthetic Biology had a global market which gene- rated $233, and genetic engineering. The buzz phrasing has not arrived yet. ``Bio Design Automation (BDA)'' or ``Genetic

Densmore, Douglas

26

Future Prospects of Synthetic Fuels  

E-Print Network [OSTI]

It is important for the future of this nation to reach the goal of demonstrated definition and quantification of the parameters which influence the ability to use this country's vast resources of coal and oil shale for production of synthetic fuels...

Fryback, M. G.

1982-01-01T23:59:59.000Z

27

Biogeography and Evolution of the Araneae: A Synthetic Approach  

E-Print Network [OSTI]

NIS/HerpNet/ORNIS Georeferencing Calculator. Three error treatments of 1, 4.5, and 18 km were used in conjunction with two of the more popular presence-only ecological modeling methods: Maxent and GARP. We assessed model quality based on a number of measures, including sensitivity.... Sensitivity tests One of the tests used to assess prediction errors is sensitivity (Fielding & Bell, 1997), which measures model quality by examining the number of test occurrences predicted absent by the niche models. We calculated sensitivity of the models...

Saupe, Erin E.

2010-04-18T23:59:59.000Z

28

Scalable Genetic System Design Using Synthetic RNA Regulators  

E-Print Network [OSTI]

longest length of synthetic DNA increases exponentially (DNA sequencing, DNA synthesis, and synthetic biology……. …3of DNA sequencing, DNA synthesis, and synthetic biology. (A)

Qi, Lei

2012-01-01T23:59:59.000Z

29

Synthetic biology: history, challenges and prospects  

Science Journals Connector (OSTI)

...over the last 35 years, the cloning and assembly of synthetic DNA sequences remains a largely bespoke affair. The field...and biological tools for the design and assembly of synthetic DNA-based programmes. Matsuoka et al. (2009) describe...

2009-01-01T23:59:59.000Z

30

Pioneer's name written in synthetic DNA  

Science Journals Connector (OSTI)

Craig Venter has “signed” his name into the sequence of the synthetic bacterial genome his lab created

2008-01-01T23:59:59.000Z

31

Synthetic LDL as targeted drug delivery vehicle  

DOE Patents [OSTI]

The present invention provides a synthetic LDL nanoparticle comprising a lipid moiety and a synthetic chimeric peptide so as to be capable of binding the LDL receptor. The synthetic LDL nanoparticle of the present invention is capable of incorporating and targeting therapeutics to cells expressing the LDL receptor for diseases associated with the expression of the LDL receptor such as central nervous system diseases. The invention further provides methods of using such synthetic LDL nanoparticles.

Forte, Trudy M. (Berkeley, CA); Nikanjam, Mina (Richmond, CA)

2012-08-28T23:59:59.000Z

32

Definition: Interferometric Synthetic Aperture Radar | Open Energy  

Open Energy Info (EERE)

Interferometric Synthetic Aperture Radar Interferometric Synthetic Aperture Radar Jump to: navigation, search Dictionary.png Interferometric Synthetic Aperture Radar Interferometric Synthetic Aperture Radar (InSAR) utilizes SAR images from two different time periods to generate maps of surface deformation. The technique can potentially measure millimeter-scale changes in the Earth's surface.[1][2] View on Wikipedia Wikipedia Definition Also Known As InSAR, IfSAR Related Terms Synthetic Aperture Radar, radar, sustainability References ↑ Synthetic Aperture Radar Interferometry to Measure Earth's Surface Topography and Its Deformation (Burgmann et al. 2000) ↑ Improved Visulaization of Satellite Radar InSAR Observed Structural Controls at Producing Geothermal Field Using Modeled Horizontal Surface Displacements(Opplinger et al. 2006)

33

A Synthetic DNA Walker for Molecular Transport  

Science Journals Connector (OSTI)

A Synthetic DNA Walker for Molecular Transport ... The authors report the incrementally staged design, synthesis, characterization, and operation of a mol. ...

Jong-Shik Shin; Niles A. Pierce

2004-08-17T23:59:59.000Z

34

Synthetic gene oscillators and their applications  

E-Print Network [OSTI]

of 25 overlapping DNA fragments to form a complete syntheticof synthetic organisms, and ”bottom- up” DNA construction ofsynthetic biologists’ attempts to design life by constructing DNA

Danino, Tal

2011-01-01T23:59:59.000Z

35

Performance evaluation of synthetically lined landfills  

SciTech Connect (OSTI)

Landfill design and performance standards for new facilities frequently require the use of geomembrane composite and double liners. Performance data from synthetically lined landfill sites have not been widely available. This report presents data obtained by monitoring three recently constructed synthetically lined landfill sites. Quantities of leachate removed by the primary and secondary collection systems from these landfills were tabulated. The data show that properly designed and constructed synthetic landfill liners provide effective containment of leachate. The environmental protection provided by synthetic liners is equivalent or superior to that of typical clay-lined facilities.

Maule, J. [Champion International Corp., Norway, MI (United States); Lowe, R.K. [STS Consultants Ltd., Green Bay, WI (United States); McCulloch, J.L. [Cross Pointe Paper Co., Park Falls, WI (United States)

1993-12-01T23:59:59.000Z

36

Bacterial evolution.  

Science Journals Connector (OSTI)

...valid one ructure (75), is vital to the future development of microbiology. als a resem...macro- evolution, megaevolution, or quantum evolution (192). Ini- tially, global...Implications for Bacterial Taxonomy If future findings support the above conclusions...

C R Woese

1987-06-01T23:59:59.000Z

37

Preparation of synthetic hydrocarbon lubricants  

SciTech Connect (OSTI)

A process is described for preparing synthetic lubricating materials which process comprises: (a) reacting (i) at least a portion of a reaction product of the liquid phase oligomerization of propylene, butylene or mixtures thereof containing a C/sub 6/ olefin component, (ii) a linear olefin reactant having an average carbon number ranging from about 10 to about 18 in the presence of a catalyst, (b) separating from the reaction mixture of (a) hydrocarbons which distill at a temperature above about 660/sup 0/ F. (316/sup 0/ C.), and (c) hydrogenating the reaction product of (b) by contact with hydrogen with or without a catalyst at a temperature ranging from about 25/sup 0/ C. to about 300/sup 0/ C.

Johnson, T.H.

1986-10-07T23:59:59.000Z

38

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

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

February 28, 2013 February 28, 2013 CX-010241: Categorical Exclusion Determination Hydrogen Pathway Analyses CX(s) Applied: A9 Date: 02/28/2013 Location(s): Virginia Offices(s): Golden Field Office February 28, 2013 CX-010237: Categorical Exclusion Determination Pittsburgh Green Innovators Synergy Center CX(s) Applied: A9 Date: 02/28/2013 Location(s): Pennsylvania Offices(s): Golden Field Office February 28, 2013 CX-010223: Categorical Exclusion Determination St. Petersburg Sustainable Biosolids/Renewable Energy Plant CX(s) Applied: A9, A11 Date: 02/28/2013 Location(s): Florida Offices(s): Golden Field Office February 28, 2013 CX-010216: Categorical Exclusion Determination Design and Optimization of a Biochemical Production Platform with Biosensor-guided Synthetic Evolution CX(s) Applied: A9, B3.6

39

Page not found | Department of Energy  

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

91 - 12600 of 31,917 results. 91 - 12600 of 31,917 results. Download CX-010214: Categorical Exclusion Determination Maximizing Multi-enzyme Synergy in Biomass Degradation in Yeast CX(s) Applied: A9, B3.6 Date: 02/28/2013 Location(s): California Offices(s): Golden Field Office http://energy.gov/nepa/downloads/cx-010214-categorical-exclusion-determination Download CX-010216: Categorical Exclusion Determination Design and Optimization of a Biochemical Production Platform with Biosensor-guided Synthetic Evolution CX(s) Applied: A9, B3.6 Date: 02/28/2013 Location(s): California Offices(s): Golden Field Office http://energy.gov/nepa/downloads/cx-010216-categorical-exclusion-determination Download CX-010222: Categorical Exclusion Determination American Energy and Manufacturing Competitiveness Study

40

Fracture of synthetic diamond M. D. Droty  

E-Print Network [OSTI]

Fracture of synthetic diamond M. D. Droty Ctystallume, 3506 Bassett Street, Santa Clara, California 1995) The fracture behavior of synthetic diamond has been investigated using indentation methods and by the tensile testing of pre-notched fracture-mechanics type samples. Specifically, the fracture toughness

Ritchie, Robert

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Single Molecule and Synthetic Biology Studies of Transcription  

E-Print Network [OSTI]

GenScript returned the synthetic DNA cloned into the EcoRIis pre-formed using synthetic DNA and RNA oligonucleotides.synthetic oligonucleotides, including those used as PCR primers, were synthesized by Integrated DNA

Zamft, Bradley Michael

2011-01-01T23:59:59.000Z

42

Synthetic Promoters Functional in Francisella novicida and Escherichia coli  

Science Journals Connector (OSTI)

...facultative intracellular pathogen. Synthetic DNA fragments consisting of the tetracycline...controllable promoters from a library of synthetic DNA molecules. We show that the strongest...flanking BamHI restriction sites) synthetic DNA fragments with a nearly central...

Ralph L. McWhinnie; Francis E. Nano

2013-10-18T23:59:59.000Z

43

Building a metal-responsive promoter with synthetic regulatory elements.  

Science Journals Connector (OSTI)

...function of MREs, we inserted a synthetic DNA fragment containing the sequence...function of MREs, we inserted a synthetic DNA fragment containing the sequence...function of MREs, we inserted a synthetic DNA fragment containing the sequence...

P F Searle; G W Stuart; R D Palmiter

1985-06-01T23:59:59.000Z

44

Abstract The rapidly emerging field of synthetic biology  

E-Print Network [OSTI]

Abstract The rapidly emerging field of synthetic biology originated, as synthetic biology has expanded into mammalian systems, it is increasingly more. Biomaterials will play an important role in advancing synthetic biology

Reisslein, Martin

45

Single Molecule and Synthetic Biology Studies of Transcription  

E-Print Network [OSTI]

GenScript returned the synthetic DNA cloned into the EcoRIis pre-formed using synthetic DNA and RNA oligonucleotides.

Zamft, Bradley Michael

2011-01-01T23:59:59.000Z

46

Molecular Interactions of Plutonium(VI) with SyntheticManganese...  

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

Plutonium(VI) with Synthetic Manganese-Substituted Goethite. Abstract: Plutonium(VI) sorption on the surface of well-characterized synthetic manganese-substituted goethite...

47

Sorption-Enhanced Synthetic Natural Gas (SNG) Production from...  

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

Sorption-Enhanced Synthetic Natural Gas (SNG) Production from Syngas: A Novel Process Combining CO Methanation, Water-Gas Shift, Sorption-Enhanced Synthetic Natural Gas (SNG)...

48

Definition: Synthetic Aperture Radar | Open Energy Information  

Open Energy Info (EERE)

Aperture Radar Aperture Radar Jump to: navigation, search Dictionary.png Synthetic Aperture Radar Synthetic-aperture radar (SAR) is an active microwave remote sensing technology that measures the phase difference between a radar wave emitted from an antennae attached to a satellite or aircraft to generate high-resolution images of a surface.[1] View on Wikipedia Wikipedia Definition Also Known As SAR Related Terms radar References ↑ Synthetic Aperature Radar: Systems and Signal Processing (Curlander and McDonough - 1991 - book) fue LikeLike UnlikeLike You like this.Sign Up to see what your friends like. l cell, Retrieved from "http://en.openei.org/w/index.php?title=Definition:Synthetic_Aperture_Radar&oldid=493069" Category: Definitions What links here Related changes

49

The assessment of DNA-synthetic activity  

Science Journals Connector (OSTI)

A method is described by which a numerical value can be assigned to the amount of DNA-synthesis shown graphically by population-histograms obtained ... index appeared to give a reasonable measure of DNA-synthetic

L. A. Coulton; B. Henderson; J. Chayen

1981-01-01T23:59:59.000Z

50

Recognition of DNA by Synthetic Antibodies  

Science Journals Connector (OSTI)

Recognition of DNA by Synthetic Antibodies ... The recombinant anti-ssDNA Fab, DNA-1, and 16 heavy chain complementarity determining region 3 (HCDR3) mutant variants were selected for thermodynamic characterization of ssDNA binding. ...

Shana M. Barbas; Peter Ghazal; Carlos F. Barbas III; Dennis R. Burton

1994-03-01T23:59:59.000Z

51

DNA interaction with synthetic polymers in solution  

Science Journals Connector (OSTI)

The complexes in which a DNA molecule is compact and protected from the ... lipids, inactivated viral particles, polymeric micelles and synthetic polycations are used [12–23...]. The latter have important advanta...

Nina Kasyanenko; Daria Afanasieva; Boris Dribinsky; Dmitry Mukhin…

2007-08-01T23:59:59.000Z

52

Synthetic Biology Moving into the Clinic  

Science Journals Connector (OSTI)

...secrete key molecules for potential disease treatment, including insulinotropic...murine interleukin-2 in response to xylan . J. Appl. Microbiol. 98 , 1191...of synthetic biology therapies for the treatment of infectious diseases and cancer, as...

Warren C. Ruder; Ting Lu; James J. Collins

2011-09-02T23:59:59.000Z

53

Iterative synthetic aperture radar imaging algorithms   

E-Print Network [OSTI]

Synthetic aperture radar is an important tool in a wide range of civilian and military imaging applications. This is primarily due to its ability to image in all weather conditions, during both the day and the night, ...

Kelly, Shaun Innes

2014-06-30T23:59:59.000Z

54

Fuzzy Synthetic Evaluation of Gas Station Safety  

Science Journals Connector (OSTI)

Based on the comprehensive analysis of hazard factors and evaluation indexes in gas stations, gas station safety is assessed in a fuzzy synthetic ... comprehensive evaluation, the specific safety level of gas stations

Xiaohua Hao; Xiao Feng

2010-01-01T23:59:59.000Z

55

Macroporous nanowire nanoelectronic scaffolds for synthetic tissues  

E-Print Network [OSTI]

The development of three-dimensional (3D) synthetic biomaterials as structural and bioactive scaffolds is central to fields ranging from cellular biophysics to regenerative medicine. As of yet, these scaffolds cannot ...

Tian, Bozhi

56

Foundational platform for mammalian synthetic biology  

E-Print Network [OSTI]

The emergent field of synthetic biology is different from many other biological engineering efforts, in that its roots, design principles, and forward engineering perspective have been adopted from electrical engineering ...

Davidsohn, Noah (Noah Justin)

2013-01-01T23:59:59.000Z

57

Meta-DNA: synthetic biology via DNA nanostructures and  

E-Print Network [OSTI]

Meta-DNA: synthetic biology via DNA nanostructures and hybridization reactions Harish Chandran1 strands and may be modified to allow for mutations. Keywords: DNA self-assembly; synthetic biology; DNA nanostructures 1. INTRODUCTION 1.1. Synthetic biology using DNA nanosystems A major goal of synthetic biology

Reif, John H.

58

Synthetic Datasets Rong Huang, Rada Chirkova, Yahya Fathi  

E-Print Network [OSTI]

Synthetic Datasets Rong Huang, Rada Chirkova, Yahya Fathi 1 Introduction Datasets may be generated will define symmetric synthetic dataset and two types of non-symmetric synthetic datasets that has some introduce symmetric synthetic dataset, its structure and the properties of the associated views. In Section

Young, R. Michael

59

Synthetic heparin-binding factor analogs  

DOE Patents [OSTI]

The invention provides synthetic heparin-binding growth factor analogs having at least one peptide chain, and preferably two peptide chains branched from a dipeptide branch moiety composed of two trifunctional amino acid residues, which peptide chain or chains bind a heparin-binding growth factor receptor and are covalently bound to a non-signaling peptide that includes a heparin-binding domain, preferably by a linker, which may be a hydrophobic linker. The synthetic heparin-binding growth factor analogs are useful as pharmaceutical agents, soluble biologics or as surface coatings for medical devices.

Pena, Louis A. (Poquott, NY); Zamora, Paul O. (Gaithersburg, MD); Lin, Xinhua (Plainview, NY); Glass, John D. (Shoreham, NY)

2010-04-20T23:59:59.000Z

60

Nanoscale Molecular Transport by Synthetic DNA Machines  

E-Print Network [OSTI]

Nanoscale Molecular Transport by Synthetic DNA Machines Jong-Shik Shin1 and Niles A. Pierce1,2 1 a processive bipedal DNA walker. Powered by externally controlled DNA fuel strands, the walker locomotes with a 5 nm stride by advancing the trailing foot to the lead at each step. On a periodic DNA track

Pierce, Niles A.

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Synthetic fuels, carbon dioxide and climate  

Science Journals Connector (OSTI)

The observed increase in atmospheric carbon dioxide (CO2) has been attributed to the use of fossil fuels. There is concern that the generation and use of synthetic fuels derived from oil shale and coal will accelerate the increase of CO2.

Alex R. Sapre; John R. Hummel; Ruth A. Reck

1982-01-01T23:59:59.000Z

62

1 Synthetic Texturing 1.1 Introduction  

E-Print Network [OSTI]

1 Synthetic Texturing 1.1 Introduction This dissertation describes improved methods for computer of this, the top of Figure 1.1 shows a horse model with a white surface and the bottom shows this same-hocformulasforlightreflection Figure 1.1: Stripe texture created using reaction-diffusion. Top is an untextured horse and the bottom

Turk, Greg

63

Feedback control of flow separation using synthetic jets  

E-Print Network [OSTI]

The primary goal of this research is to assess the effect of synthetic jets on flow separation and provide a feedback control strategy for flow separation using synthetic jets. The feedback control synthesis is conducted based upon CFD simulation...

Kim, Kihwan

2006-04-12T23:59:59.000Z

64

Cross-linked structure of network evolution  

SciTech Connect (OSTI)

We study the temporal co-variation of network co-evolution via the cross-link structure of networks, for which we take advantage of the formalism of hypergraphs to map cross-link structures back to network nodes. We investigate two sets of temporal network data in detail. In a network of coupled nonlinear oscillators, hyperedges that consist of network edges with temporally co-varying weights uncover the driving co-evolution patterns of edge weight dynamics both within and between oscillator communities. In the human brain, networks that represent temporal changes in brain activity during learning exhibit early co-evolution that then settles down with practice. Subsequent decreases in hyperedge size are consistent with emergence of an autonomous subgraph whose dynamics no longer depends on other parts of the network. Our results on real and synthetic networks give a poignant demonstration of the ability of cross-link structure to uncover unexpected co-evolution attributes in both real and synthetic dynamical systems. This, in turn, illustrates the utility of analyzing cross-links for investigating the structure of temporal networks.

Bassett, Danielle S., E-mail: dsb@seas.upenn.edu [Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States); Department of Physics, University of California, Santa Barbara, California 93106 (United States); Sage Center for the Study of the Mind, University of California, Santa Barbara, California 93106 (United States); Wymbs, Nicholas F.; Grafton, Scott T. [Department of Psychology and UCSB Brain Imaging Center, University of California, Santa Barbara, California 93106 (United States)] [Department of Psychology and UCSB Brain Imaging Center, University of California, Santa Barbara, California 93106 (United States); Porter, Mason A. [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom) [Oxford Centre for Industrial and Applied Mathematics, Mathematical Institute, University of Oxford, Oxford OX2 6GG (United Kingdom); CABDyN Complexity Centre, University of Oxford, Oxford, OX1 1HP (United Kingdom); Mucha, Peter J. [Carolina Center for Interdisciplinary Applied Mathematics, Department of Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599 (United States) [Carolina Center for Interdisciplinary Applied Mathematics, Department of Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2014-03-15T23:59:59.000Z

65

Regulation of Gene Expression by Synthetic DNA-Binding Ligands  

E-Print Network [OSTI]

Regulation of Gene Expression by Synthetic DNA-Binding Ligands Peter B. Dervan ( ) · Adam T. Poulin

Dervan, Peter B.

66

Systems Biology 204: Biomolecular Engineering and Synthetic Biology  

E-Print Network [OSTI]

Shih Biomolecular primitives Mon. Sep. 12 Willian Shih DNA origami Wed. Sep. 14 David Zhang SyntheticSystems Biology 204: Biomolecular Engineering and Synthetic Biology SyllabusSynopsis Fall 2011-based synthetic molecular and cellular machinery and systems. Students are mentored to produce substantial term

Bulyk, Martha L.

67

Synthetic logs generator for fraud detection in mobile transfer services  

E-Print Network [OSTI]

Synthetic logs generator for fraud detection in mobile transfer services C. Gaber12 , B. Hemery2.gaber,mohammed.achemlal}@orange.com Abstract. This article presents a simulator which generates synthetic data for fraud detection. It models fraudsters and legitimate users. Keywords: synthetic data, simulation, fraud detection Mobile payments become

Boyer, Edmond

68

Department of Mechanical Engineering Spring 2012 Synthetic Cable Termination  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical Engineering Spring 2012 Synthetic Cable Termination Overview NAVAIR is attempting to replace their existing metallic purchase cable with a new, synthetic cable. The synthetic cable is currently not able to be tensile tested because there is no way for the ends

Demirel, Melik C.

69

Radiance: Synthetic Imaging System | Open Energy Information  

Open Energy Info (EERE)

Radiance: Synthetic Imaging System Radiance: Synthetic Imaging System Jump to: navigation, search Tool Summary Name: RADIANCE Agency/Company /Organization: Lawrence Berkeley National Laboratory Sector: Energy Focus Area: Buildings Resource Type: Software/modeling tools User Interface: Desktop Application Website: radsite.lbl.gov/radiance/ Cost: Free References: Radiance[1] Logo: RADIANCE RADIANCE is a highly accurate ray-tracing software system for UNIX computers that is licensed at no cost in source form. Radiance was developed with primary support from the U.S. Department Of Energy and additional support from the Swiss Federal Government. Radiance is a suite of programs for the analysis and visualization of lighting in design. Input files specify the scene geometry, materials, luminaires,time, date

70

Solitons in synthetic and biological polymers  

SciTech Connect (OSTI)

Solid state and statistical physics applications of soliton mathematics continue to expand rapidly. The present report describes connections between solid state (e.g. synthetic polymer) and biophysics, with strong nonlinearity playing the unifying role. Striking parallels examined include: analytical (as in the case of self-trapping mechanisms); numerical techniques; experimental implications, applications, and techniques. Conventional solid state probes are at last being devoted to biopolymers but their complexity is demanding new extremes and techniques.

Bishop, A.R.

1983-01-01T23:59:59.000Z

71

Synthetic and Biosynthetic Studies of Natural Products  

E-Print Network [OSTI]

of the Scholarly Communications program at the University of Kansas Libraries’ Center for Digital Scholarship. http://kuscholarworks.ku.edu B Y E. IfEJ.32 S Synthetic and Biosynthetic Studies of Natural Products Part I. Studies Directed Toward the Total Synthesis... of 4-Demethoxy -A-Homodaunorubicin Analogs Part II. Biosynthesis of Coloradocin. Origin of the Carbons Part III. Total Synthesis of the Naturally Occurring Prenylated Bibenzyl Amorfrutin A Eduardo Alberto Veliz Chanis B.S., University of Panama...

Ve?liz Chanis, Eduardo Alberto

1992-05-01T23:59:59.000Z

72

“Invisible” Synthetic Opiates and Acute Psychosis  

Science Journals Connector (OSTI)

...revisiting. Another striking fact is that nalbuphine may interfere with enzymatic methods for the detection of specific opiates, and it is virtually invisible to routine toxicologic tests,, as in the case we report. When there is suspicion of nalbuphine intoxication, routine screening for opiates should... To the Editor: Many acute psychotic episodes encountered in emergency situations are related to addictive substances. Nalbuphine is a synthetic opiate agonist–antagonist, chemically related to both the opioid antagonist naloxone and the analgesic ...

2001-08-09T23:59:59.000Z

73

A synthetic biology approach to bio-chem-ICT: first moves towards chemical communication between synthetic and natural cells  

Science Journals Connector (OSTI)

In this article we present novel aspects of the impact that synthetic biology (SB) can express in a field traditionally based on computer science: information and communication technologies (ICTs), an area that we will consider taking into account also ... Keywords: Artificial intelligence, Autonomy, Autopoiesis, Bio-chem-ICTs, Molecular communication, Quorum sensing, Synthetic biology, Synthetic cells

Giordano Rampioni; Fabio Mavelli; Luisa Damiano; Francesca D'angelo; Marco Messina; Livia Leoni; Pasquale Stano

2014-09-01T23:59:59.000Z

74

Further Analysis of Real Beam Line Optics From A Synthetic Beam  

SciTech Connect (OSTI)

Standard closed-orbit techniques for Twiss parameter measurement are not applicable to the open-ended Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab. The evolution of selected sets of real orbits in the accelerator models the behavior of a 'synthetic' beam. This process will be validated against beam profile-based Twiss parameter measurements and should provide the distributed optical information needed to optimize beamline tuning for an open-ended system. This work will discuss the current and future states of this technique, as well as an example of its use in the CEBAF machine.

Ryan Bodenstein, Michael Tiefenback, Yves Roblin

2012-07-01T23:59:59.000Z

75

E-Print Network 3.0 - acoustics synthetic aperture Sample Search...  

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

Synthetic aperture focusing... Introduction Synthetic aperture focusing techniques (SAFT) ... Source: Uppsala Universitet, Department of Material Science, Signals and Systems...

76

Skin Evolution  

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

Skin Evolution Skin Evolution Name: Olga Location: N/A Country: N/A Date: N/A Question: Do you think it is possible that our ancestors were actually black, and that a gene mutation for an enzyme in the metabollic pathway of melanin meant that not enough melanin was produced some of us ended up with white skin. Primitive apes have black skin, and we evolved from them, so doesn't this mean that humans orginally had black skin??? Replies: Most likely, yes, humans probably evolved from dark-skinned ancestors. I will take issue, however, with your statement that "primitive apes have black skin;" we can't say that for absolute certain, because we have no primitive apes to compare to. All we have now are modern apes. All modern apes - homo sapiens, pan troglodytes, gorilla gorilla - are highly, probably equally, evolved. (One could make an argument that homo sapiens is in many ways more generalized - note the generalized dentition, fragile skeleton, etc. - than other modern apes, and thus could be said to be more primitive.) As far as that goes, the only modern apes with white skin I know of are a color variant of homo sapiens.

77

Chemistry in Motion: Tiny Synthetic Motors  

E-Print Network [OSTI]

In this Account, we describe how synthetic motors that operate by self-diffusiophoresis make use of a self-generated concentration gradient to drive motor motion. A description of propulsion by self-diffusiophoresis is presented for Janus particle motors comprising catalytic and noncatalytic faces. The properties of the dynamics of chemically powered motors are illustrated by presenting the results of particle-based simulations of sphere-dimer motors constructed from linked catalytic and noncatalytic spheres. The geometries of both Janus and sphere-dimer motors with asymmetric catalytic activity support the formation of concentration gradients around the motors. Because directed motion can occur only when the system is not in equilibrium, the nature of the environment and the role it plays in motor dynamics are described. Rotational Brownian motion also acts to limit directed motion, and it has especially strong effects for very small motors. We address the following question: how small can motors be and still exhibit effects due to propulsion, even if only to enhance diffusion? Synthetic motors have the potential to transform the manner in which chemical dynamical processes are carried out for a wide range of applications.

Peter H. Colberg; Shang Yik Reigh; Bryan Robertson; Raymond Kapral

2014-11-03T23:59:59.000Z

78

Synthetic Aperture Radar Persistent Scatterer Interferometry (PSInSAR) |  

Open Energy Info (EERE)

Synthetic Aperture Radar Persistent Scatterer Interferometry (PSInSAR) Synthetic Aperture Radar Persistent Scatterer Interferometry (PSInSAR) Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Synthetic Aperture Radar Persistent Scatterer Interferometry (PSInSAR) Author Parviz Tarikhi Published N/A, 2010 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Synthetic Aperture Radar Persistent Scatterer Interferometry (PSInSAR) Citation Parviz Tarikhi. Synthetic Aperture Radar Persistent Scatterer Interferometry (PSInSAR) [Internet]. 2010. Tunis, Tunisia. N/A. [cited 2013/09/17]. Available from: http://parviztarikhi.files.wordpress.com/2010/05/3psinsar-i-parviz_tarikhi.pdf Retrieved from "http://en.openei.org/w/index.php?title=Synthetic_Aperture_Radar_Persistent_Scatterer_Interferometry_(PSInSAR)&oldid=682949"

79

Spectral Study of DNA Adsorption on Natural and Synthetic Silicates  

Science Journals Connector (OSTI)

Adsorption and interaction capacity of DNA with three types of natural silicates (chrysotile, crocidolite, clinoptilolite) and one synthetic Y zeolite were studied. The influence of ... pretreatment of silicates ...

R. Stanescu-Dumitru; C. Mandravel…

1997-01-01T23:59:59.000Z

80

Synthetic nanotubes lay foundation for new technology: Artificial...  

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

Synthetic nanotubes lay foundation for new technology: Artificial pores mimic key features of natural pores By Tona Kunz * July 17, 2012 Tweet EmailPrint Scientists have overcome...

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

US Synthetic Corp (TRL 4 Component) - The Development of Open...  

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

Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines US Synthetic Corp (TRL 4 Component) - The Development of Open, Water Lubricated...

82

Intramolecular hydrogen bonding as a synthetic tool to induce...  

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

Intramolecular hydrogen bonding as a synthetic tool to induce chemical selectivity in acid catalyzed porphyrin synthesis Authors: Megiatto, J. D., Patterson, D., Sherman, B. D.,...

83

Vehicle Technologies Office Merit Review 2014: Synthetic Solutions...  

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

about synthetic solutions for correcting voltage fade in LMR-NMC cathodes. es190johnson2014o.pdf More Documents & Publications Cathode Synthesis and Voltage Fade: Designed...

84

Tying new knots in synthetic biology  

SciTech Connect (OSTI)

Recent years have seen the emergence of synthetic biology, which encompasses the engineering of living organisms as well as the implementation of biological behavior in non-living substrates. Many of these engineered systems have harnessed the diverse toolkit of proteins, genes, and cellular processes that nature offers. While these efforts have been fruitful, they have also illustrated the difficulty associated with programming highly complex functions by tapping into cellular processes. Another set of efforts has focused on building circuits, performing computation, and constructing nanoscale machines using nucleic acids. Zhang et al., 2007, Science 318, 1121 1125 and Yin et al., 2008, Nature 451, 318 322 recently demonstrated flexible approaches for the modular construction of such biochemical devices exclusively using DNA. These approaches have exciting implications both for engineering living cells and for mimicking life-like behavior at the nanoscale.

Simpson, Michael L [ORNL; Karig, David K [ORNL

2008-01-01T23:59:59.000Z

85

Synthetic DNA minor groove-binding drugs  

Science Journals Connector (OSTI)

In this review, both cationic and neutral synthetic ligands that bind in the minor groove of DNA are discussed. Certain bis-distamycins and related lexitropsins show activities against human immunodeficiency virus (HIV)-1 and HIV-2 at low nanomolar concentrations. DAPI binds strongly to AT-containing polymers and is located in the minor groove of DNA. DAPI intercalates in DNA sequences that do not contain at least three consecutive AT bp. Berenil can also exhibit intercalative, as well as minor groove binding, properties depending on sequence. Furan-containing analogues of berenil play an important role in their activities against Pneumocystis carinii and Cryptosporidium parvuam infections in vivo. Pt(II)-berenil conjugates show a good activity profile against HL60 and U-937 human leukemic cells. Pt-pentamidine shows higher antiproliferative activity against small cell lung, non-small cell lung, and melanoma cancer cell lines compared with many other tumor cell lines. trans-Butenamidine shows good anti-P. carinii activity in rats. Pentamidine is used against P. carinii pneumonia in individuals infected with HIV who are at high risk from this infection. A comparison of the cytotoxic potencies of adozelesin, bizelesin, carzelesin, cisplatin, and doxorubicin indicates that adozelesin is a potent analog of CC-1065. Naturally occurring pyrrolo[2,1-c][1,4]benzodiazepines such as anthramycin have a 2- to 3-bp sequence specificity, but a synthetic PBD dimer spans 6 bp, actively recognizing a central 5?-GATC sequence. The crosslinking efficiency of PBD dimers is much greater than that of other major groove crosslinkers, such as cisplatin, melphalan, etc. Neothramycin is used clinically for the treatment of superficial carcinoma of the bladder.

B.S.Praveen Reddy; S.Murari Sondhi; J.William Lown

1999-01-01T23:59:59.000Z

86

RESEARCH ARTICLE Ensuring the security of synthetic biology--towards  

E-Print Network [OSTI]

RESEARCH ARTICLE Ensuring the security of synthetic biology--towards a 5P governance strategy the label ``synthetic biology'' has been attached to a number of diverse research and commercial activities, ranging from the search for a min- imal cell to the quick delivery of customized genes by DNA synthesis

Sussex, University of

87

Automated Selection of Synthetic Biology Parts for Genetic Regulatory Networks  

E-Print Network [OSTI]

Automated Selection of Synthetic Biology Parts for Genetic Regulatory Networks Fusun Yaman: Raising the level of abstraction for synthetic biology design requires solving several challenging problems, including mapping abstract designs to DNA sequences. In this paper we present the first formalism

Densmore, Douglas

88

Synthetic Biology Domitilla Del Vecchio* and Richard M. Murray**  

E-Print Network [OSTI]

1 Synthetic Biology Domitilla Del Vecchio* and Richard M. Murray** *Department of Mechanical@cds.caltech.edu Abstract--The past decade has seen tremendous advances in DNA recombination and measurement techniques functions is now pos- sible, leading to the birth of a new field called synthetic biology. Sophisticated

Del Vecchio, Domitilla

89

Supporting Information for: Synthetic Control of Green Fluorescent Protein (GFP)  

E-Print Network [OSTI]

, and then using DNA ligase to insert synthetic oligonucleotides containing the loop sequence were inserted usingS1 Supporting Information for: Synthetic Control of Green Fluorescent Protein (GFP) Kevin P. Kent the genes in pET-15b with restriction enzymes that cut the DNA close to the desired loop insertion site

Boxer, Steven G.

90

1 - Gasification and synthetic liquid fuel production: an overview  

Science Journals Connector (OSTI)

Abstract This chapter discusses general considerations on gasification processes and synthetic liquid fuel production. It provides an overview of state-of-the-art gasification technologies, feedstocks and applications in power generation, and synthetic fuels production, together with some recent future trends in the field.

R. Luque; J.G. Speight

2015-01-01T23:59:59.000Z

91

Synthetic logs generator for fraud detection in mobile transfer services  

E-Print Network [OSTI]

Synthetic logs generator for fraud detection in mobile transfer services Chrystel Gaber, Baptiste to commit crimes and avoid detection, research in the field of fraud is always evolving. However, trans synthetic logs with real ones. I. INTRODUCTION Frauds in the field of electronic payment evolve contin

Paris-Sud XI, Université de

92

SynFlo: an interactive installation introducing synthetic biology concepts  

Science Journals Connector (OSTI)

SynFlo is an interactive installation that utilizes tangible interaction to help illustrate core concepts of synthetic biology through outreach programs. This playful installation allows users to create useful virtual life forms from standardized genetic ... Keywords: E. chromi, microsoft surface, sifteo cubes, synthetic biology, tangible user interfaces

Kimberly Chang; Wendy Xu; Nicole Francisco; Consuelo Valdes; Robert Kincaid; Orit Shaer

2012-11-01T23:59:59.000Z

93

Operation Allelopathy: An Experiment Investigating an Alternative to Synthetic Agrochemicals  

Science Journals Connector (OSTI)

Operation Allelopathy: An Experiment Investigating an Alternative to Synthetic Agrochemicals ... The experiment involves an evaluation by students of the potential of plant extracts as an alternative to synthetic agrochemicals to identify new ecological farming techniques that could be applied in agriculture. ... Instead, natural products constitute an attractive source of agrochemicals with great potential. ...

Nuria Chinchilla; Alexandra G. Durán; Ceferino Carrera; Jesús Ayuso; Francisco A. Macías

2013-11-22T23:59:59.000Z

94

Inversion of synthetic aperture radar interferograms for sources of  

Open Energy Info (EERE)

Inversion of synthetic aperture radar interferograms for sources of Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field Authors Bill Foxall and D. W. Vasco Published Journal Journal of Volcanology and Geothermal Research, 2008 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie Valley geothermal field Citation Bill Foxall,D. W. Vasco. 2008. Inversion of synthetic aperture radar interferograms for sources of production-related subsidence at the Dixie

95

Synthetic Aperture Radar Movie Gallery -- Sandia National Laboratories  

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

Synthetic Aperture Radar Movie Gallery Synthetic Aperture Radar Movie Gallery This gallery features movies of Sandia National Laboratories' synthetic aperture radar imagery of Albuquerque, New Mexico and Washington, DC. Sandia's Twin-Otter SAR produced these high-resolution stripmap images in real time. (Note: The movies below have been downsampled greatly to make them suitable for viewing on the world wide web. These movies are not recommended for modems of speeds less than 56 kbps due to their large file sizes.) Albuquerque, NM Area Movies Sandia National Laboratories' Twin-Otter SAR produced these Ku-Band 0.3 and 1.0 meter resolution images of Albuquerque, NM in real time. Synthetic aperture radar movie of west Gibson Blvd 0.3 meter airborne synthetic aperture radar movie from I-25 to Maxwell along Gibson Blvd. (Length: 30 seconds)

96

A Synthetic Resilin Is Largely Unstructured  

SciTech Connect (OSTI)

Proresilin is the precursor protein for resilin, an extremely elastic, hydrated, cross-linked insoluble protein found in insects. We investigated the secondary-structure distribution in solution of a synthetic proresilin (AN16), based on 16 units of the consensus proresilin repeat from Anopheles gambiae. Raman spectroscopy was used to verify that the secondary-structure distributions in cross-linked AN16 resilin and in AN16 proresilin are similar, and hence that solution techniques (such as NMR and circular dichroism) may be used to gain information about the structure of the cross-linked solid. The synthetic proresilin AN16 is an intrinsically unstructured protein, displaying under native conditions many of the characteristics normally observed in denatured proteins. There are no apparent {alpha}-helical or {beta}-sheet features in the NMR spectra, and the majority of backbone protons and carbons exhibit chemical shifts characteristic of random-coil configurations. Relatively few peaks are observed in the nuclear Overhauser effect spectra, indicating that overall the protein is dynamic and unstructured. The radius of gyration of AN16 corresponds to the value expected for a denatured protein of similar chain length. This high degree of disorder is also consistent with observed circular dichroism and Raman spectra. The temperature dependences of the NH proton chemical shifts were also measured. Most values were indicative of protons exposed to water, although smaller dependences were observed for glycine and alanine within the Tyr-Gly-Ala-Pro sequence conserved in all resilins found to date, which is the site of dityrosine cross-link formation. This result implies that these residues are involved in hydrogen bonds, possibly to enable efficient self-association and subsequent cross-linking. The {beta}-spiral model for elastic proteins, where the protein is itself shaped like a spring, is not supported by the results for AN16. Both the random-network elastomer model and the sliding {beta}-turn model are consistent with the data. The results indicate a flat energy landscape for AN16, with very little energy required to switch between conformations. This ease of switching is likely to lead to the extremely low energy loss on deformation of resilin.

Nairn, Kate M.; Lyons, Russell E.; Mulder, Roger J.; Mudie, Stephen T.; Cookson, David J.; Lesieur, Emmanuelle; Kim, Misook; Lau, Deborah; Scholes, Fiona H.; Elvin, Christopher M. (CSIRO/MSE); (CSIRO/MHT); (CSIRO/LI); (Aust. Synch.)

2008-11-03T23:59:59.000Z

97

Superposition and Synthetic Genetic Devices: Framework and Model System to Investigate Linearity in Escherichia coli  

E-Print Network [OSTI]

into the host cell as DNA, a synthetic device must first beAdie T, Baldwin GS: DNA assembly for synthetic biology: fromdevices (synthetic and native) in the form of DNA act as

Hajimorad, Meghdad

2011-01-01T23:59:59.000Z

98

Meta-DNA: A DNA-Based Approach to Synthetic Biology  

Science Journals Connector (OSTI)

The goal of synthetic biology is to design and assemble synthetic systems that mimic biological systems. One of the most fundamental challenges in synthetic biology is to synthesize artificial biochemical syst...

Harish Chandran; Nikhil Gopalkrishnan…

2014-01-01T23:59:59.000Z

99

A syntactic model to design and verify synthetic genetic constructs derived from standard biological parts  

Science Journals Connector (OSTI)

......parsers capable of verifying the structural validity of a synthetic DNA sequence. Several prominent synthetic biologists have...2006), a software application to quickly design synthetic DNA molecules from a library of basic parts, has been inspired......

Yizhi Cai; Brian Hartnett; Claes Gustafsson; Jean Peccoud

2007-10-15T23:59:59.000Z

100

Quantitative study of Helicobacter pylori in gastric mucus by competitive PCR using synthetic DNA fragments.  

Science Journals Connector (OSTI)

...mucus by competitive PCR using synthetic DNA fragments T Furuta E Kaneko M...method using various amounts of synthetic DNA fragments containing the same...mucus by competitive PCR using synthetic DNA fragments. | Helicobacter pylori...

T Furuta; E Kaneko; M Suzuki; H Arai; H Futami

1996-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Synthetic DNA probes for detection of enterotoxigenic Clostridium perfringens strains isolated from outbreaks of food poisoning.  

Science Journals Connector (OSTI)

...research-article Research Article Synthetic DNA probes for detection of enterotoxigenic...potential to produce enterotoxin. Synthetic DNA probes for detection of enterotoxigenic...American Society for Microbiology Synthetic DNA Probes for Detection of Enterotoxigenic...

M Van Damme-Jongsten; J Rodhouse; R J Gilbert; S Notermans

1990-01-01T23:59:59.000Z

102

DNA adsorption on synthetic and natural allophanes  

Science Journals Connector (OSTI)

The adsorption of DNA on natural and synthetic samples of allophane, which is a primary clay mineral of andosols, was investigated with respect to the DNA concentration, pH, ionic strength in the sample solution, and competition between DNA molecules and phosphate ions for adsorption to understand the behavior of extracellular DNA molecules in andosols. The relationships between DNA adsorption and the final concentrations were significantly fitted to a simple linear Langmuir equation. DNA adsorption decreased considerably with increasing suspension pH in the range between 3 and 9. The adsorption was less affected by the ionic strength of the suspension from 0.1 to 0.5 mol L? 1. Under the same experimental conditions, DNA adsorption on allophanes was relatively higher than that on montmorillonite and silica but relatively lower than that on gibbsite and goethite. DNA adsorption on allophanes decreased on the addition of phosphate, indicating that there was a competition between DNA molecules and phosphate ions for adsorption on the minerals. These results suggested that DNA adsorption on allophanes occurred via two mechanisms: direct bonding of the phosphate group at the end of the DNA molecule to the OH groups of the Al-oxide layer on allophane, and the association of DNA molecules with the surface of negatively charged allophane via a bridging of inorganic cations.

Kazutoshi Saeki; Masao Sakai; Shin-Ichiro Wada

2010-01-01T23:59:59.000Z

103

Naphthenic acid corrosion in synthetic fuels production  

SciTech Connect (OSTI)

Serious corrosion damage to carbon steel piping in a fractionation unit associated with synthetic fuels production has been ascribed to the presence of naphthenic acids. Investigation of the problem revealed total acids numbers (TAN) ranging from 8--12mg KOH/g in the feed to the unit. Damage typically occurred in the temperature range 180--240 C and manifested as localized pitting, preferential weld corrosion, general wall thinning and end-grain attack. Filming amine corrosion inhibitors designed for refinery overhead systems have been proven ineffective and high temperature phosphate-based inhibitors could not be used due to potential catalyst poisoning in downstream refinery units. Coupon exposures indicated corrosion rates in the order of 2 mm/y on carbon steel in a reboiler line as well as pitting to austenitic stainless steel type UNS S30403. Line replacement in austenitic stainless steel UNS S31603 has been proven effective. The performance of this alloy is mainly ascribed to its molybdenum content. The absence of sulfur in the feed to the unit is also contributing to the alloy performance despite the extremely high total acid numbers.

Bruyn, H.I. de [Mossgas Ltd., Mossel Bay (South Africa)

1998-12-31T23:59:59.000Z

104

Motion Measurement for Synthetic Aperture Radar.  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) measures radar soundings from a set of locations typically along the flight path of a radar platform vehicle. Optimal focusing requires precise knowledge of the sounding source locations in 3 - D space with respect to the target scene. Even data driven focusing techniques (i.e. autofocus) requires some degree of initial fidelity in the measurements of the motion of the radar. These requirements may be quite stringent especially for fine resolution, long ranges, and low velocities. The principal instrument for measuring motion is typically an Inertial Measurement Unit (IMU), but these instruments have inherent limi ted precision and accuracy. The question is %22How good does an IMU need to be for a SAR across its performance space?%22 This report analytically relates IMU specifications to parametric requirements for SAR. - 4 - Acknowledgements Th e preparation of this report is the result of a n unfunded research and development activity . Although this report is an independent effort, it draws heavily from limited - release documentation generated under a CRADA with General Atomics - Aeronautical System, Inc. (GA - ASI), and under the Joint DoD/DOE Munitions Program Memorandum of Understanding. Sandia National Laboratories is a multi - program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of En ergy's National Nuclear Security Administration under contract DE - AC04 - 94AL85000.

Doerry, Armin W.

2015-01-01T23:59:59.000Z

105

Synthetic aperture radar processing with tiered subapertures  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) is used to form images that are maps of radar reflectivity of some scene of interest, from range soundings taken over some spatial aperture. Additionally, the range soundings are typically synthesized from a sampled frequency aperture. Efficient processing of the collected data necessitates using efficient digital signal processing techniques such as vector multiplies and fast implementations of the Discrete Fourier Transform. Inherent in image formation algorithms that use these is a trade-off between the size of the scene that can be acceptably imaged, and the resolution with which the image can be made. These limits arise from migration errors and spatially variant phase errors, and different algorithms mitigate these to varying degrees. Two fairly successful algorithms for airborne SARs are Polar Format processing, and Overlapped Subaperture (OSA) processing. This report introduces and summarizes the analysis of generalized Tiered Subaperture (TSA) techniques that are a superset of both Polar Format processing and OSA processing. It is shown how tiers of subapertures in both azimuth and range can effectively mitigate both migration errors and spatially variant phase errors to allow virtually arbitrary scene sizes, even in a dynamic motion environment.

Doerry, A.W. [Sandia National Labs., Albuquerque, NM (United States). Synthetic Aperture Radar Dept.

1994-06-01T23:59:59.000Z

106

Heuristic for Maximizing DNA Reuse in Synthetic DNA Library Assembly  

Science Journals Connector (OSTI)

Heuristic for Maximizing DNA Reuse in Synthetic DNA Library Assembly ... In concert with entirely de novo synthesis, a swathe of alternative DNA assembly methods are being introduced(4-6) that concatenate parts from hundreds of base pairs in length, through gene fusions, to synthetic biological devices built from catalogued parts, up to megabase fragments and entire chromosomes. ... De novo synthesis relies on synthetic oligos that are inherently error prone, and therefore, reusing existing error-free DNA in constructing new DNA provides an inherent advantage. ...

Jonathan Blakes; Ofir Raz; Uriel Feige; Jaume Bacardit; Pawe? Widera; Tuval Ben-Yehezkel; Ehud Shapiro; Natalio Krasnogor

2014-02-20T23:59:59.000Z

107

Applying Synthetic Lethality for the Selective Targeting of Cancer  

Science Journals Connector (OSTI)

...not yet been matched by progress in its clinical application. Nevertheless, synthetic lethality is a promising rationale that is ready for clinical testing. Time will tell how synthetic lethality will be integrated into therapeutic approaches. Synthetic lethality refers to the requirement that two defects be present for cell death to occur. When an agent damages DNA, its effects on the cell can be amplified if the efforts of the cell to repair the damage are inhibited. Clinical application of this idea is just beginning.

McLornan D.P.List A.Mufti G.J.

2014-10-30T23:59:59.000Z

108

Unscheduled DNA synthesis and mitochondrial DNA synthetic rate following injury of the facial nerve  

Science Journals Connector (OSTI)

Unscheduled DNA synthesis (UDS) of nuclear DNA and mitochondrial (mt) DNA synthetic rates were determined autoradiographically in different cell ... nerve transection. In addition to an increased synthetic rate ...

H. Korr; V. Philippi; C. Helg; J. Schiefer; M. B. Graeber…

1997-11-01T23:59:59.000Z

109

Flourishing and Discordance: On Two Modes of Human Science Engagement with Synthetic Biology  

E-Print Network [OSTI]

single stranded synthetic DNA, the fact that ligation indo: putting a piece of synthetic DNA in a host. But I think

Stavrianakis, Anthony

2012-01-01T23:59:59.000Z

110

Synthetic Nano-Low Density Lipoprotein as Targeted Drug Delivery Vehicle for Glioblastoma Multiforme  

E-Print Network [OSTI]

Synthetic Nano-Low Density Lipoprotein as Targeted Drugmicroemulsion; peptide; nano-low density lipoproteintherapeutic agents. A synthetic nano-LDL (nLDL) particle was

Nikanjam, Mina; Blakely, Eleanor A.; Bjornstad, Kathleen A.; Shu, Xiao; Budinger, Thomas F.; Forte, Trudy M.

2006-01-01T23:59:59.000Z

111

E-Print Network 3.0 - advanced synthetic aperture Sample Search...  

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

of Synthetic Aperture Summary: advanced synthetic aperture focusing tech- niques (SAFT) implemented in frequency domain have been widely... 1399 An Implementation of...

112

2006 Nature Publishing Group Deciphering the evolution and metabolism of an  

E-Print Network [OSTI]

become a main focus in oceanography and wastewater treatment1,2 . It is also the nitrogen cycle's major and allow us to expose the genetic blueprint of the organism's special properties. Most significantly, we and evolution of these important bacteria. A laboratory bioreactor, anoxic and fed with synthetic wastewater

Cai, Long

113

113 Lab Learning Objectives Week 5: synthetic lab #4  

E-Print Network [OSTI]

113 Lab Learning Objectives Week 5: synthetic lab #4 Learning Objectives for Promoter Discovery the information contained within promoters. · Use protocols for molecular biology to clone DNA. · Interpret

Campbell, A. Malcolm

114

Stabilizing synthetic data in the DNA of living organisms  

Science Journals Connector (OSTI)

Data-encoding synthetic DNA, inserted into the genome of a living ... generations, one of the merits of using DNA material is long-term data storage within ... broken by mutation, deletion, and insertion of DNA, ...

Nozomu Yachie; Yoshiaki Ohashi; Masaru Tomita

2008-06-01T23:59:59.000Z

115

Integrating ethical analysis “Into the DNA” of synthetic biology  

Science Journals Connector (OSTI)

How to do this? Such analysis should take account of the fact that synthetic biology has several distinct sub-fields; these... Design of DNA—which can then be placed in a...2010

Patrick Heavey

2014-09-01T23:59:59.000Z

116

Nucleic Acid Library Construction Using Synthetic DNA Constructs  

Science Journals Connector (OSTI)

The synthesis of a high-diversity double-stranded DNA pool can require hundreds of milliliters of...3,10...). Large volumes are required because the maximum concentration of single-stranded synthetic DNA template...

Hani S. Zaher; Peter J. Unrau

2005-01-01T23:59:59.000Z

117

Aromatic Interactions in Proteins, DNA and Synthetic Receptors  

Science Journals Connector (OSTI)

...research-article Aromatic Interactions in Proteins, DNA and Synthetic Receptors C. A. Hunter Non-covalent interactions between...and three-dimensional structure in double-helical DNA. The - interaction model has been used to calculate the...

1993-01-01T23:59:59.000Z

118

113 Lab Learning Objectives Week 8: synthetic lab #7  

E-Print Network [OSTI]

113 Lab Learning Objectives Week 8: synthetic lab #7 Learning Objectives for Promoter Discovery Selection Skills · Read DNA sequence and search for SNPs using ApE software. · Determine your PTC tasting

Campbell, A. Malcolm

119

Sequence Specific Recognition of Double Helical DNA. A Synthetic Approach  

Science Journals Connector (OSTI)

The design of synthetic sequence-specific DNA-binding molecules has advanced in recent years ... rapid and precise analyses of hundreds of potential DNA-binding sites to nucleotide resolution on sequencing ... bi...

P. B. Dervan

1988-01-01T23:59:59.000Z

120

Exploiting synthetic lethal interactions for targeted cancer therapy  

E-Print Network [OSTI]

Emerging data suggests that synthetic lethal interactions between mutated oncogenes/tumor suppressor genes and molecules involved in DNA damage signaling and repair can be therapeutically exploited to preferentially kill ...

Jiang, Hai

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Retroactivity, modularity, and insulation in synthetic biology circuits  

E-Print Network [OSTI]

A central concept in synthetic biology is the reuse of well-characterized modules. Modularity simplifies circuit design by allowing for the decomposition of systems into separate modules for individual construction. Complex ...

Lin, Allen

2011-01-01T23:59:59.000Z

122

Defossiling Fuel: How Synthetic Biology Can Transform Biofuel Production  

E-Print Network [OSTI]

Defossiling Fuel: How Synthetic Biology Can Transform Biofuel Production David F. Savage , Jeffrey through natural intermediates to final molecule is long, and biofuel production is perhaps the ultimate engineering, economic, political, and environmental realities. Are biofuels sustainable? Consider U

123

What is Synthetic Biology? Application of engineering principles  

E-Print Network [OSTI]

to the design and construction of biological parts, devices, and systems with applications in energy, medicine;Biofuels from Algae CO -neutral2 1,000,000 gallons in 2008 18 #12;Synthetic Biology Biochemistry

Campbell, A. Malcolm

124

Magnetic behaviour of synthetic Co2SiO4  

Science Journals Connector (OSTI)

The magnetic structure of the synthetic cobalt olivine, Co2SiO4, is determined by means of non-polarized and polarized neutron diffraction on single-crystal and powder samples.

Sazonov, A.

2009-11-16T23:59:59.000Z

125

Wafer-Scale Synthesis of Monodisperse Synthetic Magnetic Multilayer Nanorods  

Science Journals Connector (OSTI)

Wafer-Scale Synthesis of Monodisperse Synthetic Magnetic Multilayer Nanorods ... †Department of Materials Science and Engineering, ‡Department of Mechanical Engineering, and §Department of Electrical Engineering, Stanford University, Stanford, California 94305, United States ...

Mingliang Zhang; Daniel J. B. Bechstein; Robert J. Wilson; Shan X. Wang

2013-12-12T23:59:59.000Z

126

Synthetic strategies for the design of platinum anticancer drug candidates  

E-Print Network [OSTI]

Chapter 1. The Synthetic Chemistry of Platinum Anticancer Agents Since the inception of cisplatin as a clinically approved anticancer agent, a large number of platinum compounds have been synthesized with the aim of finding ...

Wilson, Justin Jeff

2013-01-01T23:59:59.000Z

127

Synthetic approaches to the activation of substituted 2-methyl pyridines  

E-Print Network [OSTI]

increases in the yield and rate of these reactions is an important objective. This thesis describes synthetic approaches to a new class of ligands containing two picolinic acid units conected together by a non-oxidizable chain. An improved procedure...

Cancanon, Fernadina de la Caridad

2012-06-07T23:59:59.000Z

128

Biofuel production by in vitro synthetic enzymatic pathway biotransformation  

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

49; 49; NO. OF PAGES 7 Please cite this article in press as: Zhang Y-H P., et al. Biofuel production by in vitro synthetic enzymatic pathway biotransformation, Curr Opin Biotechnol (2010), doi:10.1016/j.copbio.2010.05.005 Available online at www.sciencedirect.com Biofuel production by in vitro synthetic enzymatic pathway biotransformation Y-H Percival Zhang 1,2,3 , Jibin Sun 4 and Jian-Jiang Zhong 5 Cell-free synthetic pathway biotransformation (SyPaB) is the implementation of complicated biochemical reactions by in vitro assembling a number of enzymes or their complexes and coenzymes. Assembly of numerous enzymes without cellular membrane, gene regulation, or undesired pathway can circumvent some of the obstacles to modifying living microorganisms. Several synthetic pathways for the production of liquid biofuels - alcohols and hydrocarbon precursors (polyols)

129

Evolution of Web Systems  

Science Journals Connector (OSTI)

The World Wide Web has led to a new kind of software, web systems, which are based on web technologies. Just like software in other domains, web systems have evolution challenges. This chapter discusses evolution...

Holger M. Kienle; Damiano Distante

2014-01-01T23:59:59.000Z

130

NATURE BIOTECHNOLOGY VOLUME 24 NUMBER 5 MAY 2006 545 RNA synthetic biology  

E-Print Network [OSTI]

synthetic biology efforts have focused on engineering gene cir- cuits that rely on protein-DNA interactionsNATURE BIOTECHNOLOGY VOLUME 24 NUMBER 5 MAY 2006 545 RNA synthetic biology Farren J Isaacs1, Daniel two years efforts in synthetic biology have produced novel, synthetic RNA components capable

Collins, James J.

131

Meta-DNA: A DNA-Based Approach to Synthetic Harish Chandran1  

E-Print Network [OSTI]

Meta-DNA: A DNA-Based Approach to Synthetic Biology Harish Chandran1 harish@cs.duke.edu Nikhil Gopalkrishnan, Bernard Yurke, John Reif, Meta-DNA: Synthetic Biology via DNA Nanostructures and Hybridization@cs.duke.edu Abstract The goal of synthetic biology is to design and assemble synthetic systems that mimic bio- logical

Reif, John H.

132

Function of transcription termination factor .rho. in a model transcription system using synthetic DNA as template  

Science Journals Connector (OSTI)

Function of transcription termination factor .rho. in a model transcription system using synthetic DNA as template ...

Katsuya Shigesada; Mutsuo Imai

1982-11-01T23:59:59.000Z

133

Structure and Photoinduced Electron Transfer in Exceptionally Stable Synthetic DNA Hairpins with Stilbenediether Linkers  

Science Journals Connector (OSTI)

Structure and Photoinduced Electron Transfer in Exceptionally Stable Synthetic DNA Hairpins with Stilbenediether Linkers ...

Frederick D. Lewis; Xiaoyang Liu; Yangsheng Wu; Scott E. Miller; Michael R. Wasielewski; Robert L. Letsinger; Ruslan Sanishvili; Andrzej Joachimiak; Valentina Tereshko; Martin Egli

1999-10-13T23:59:59.000Z

134

Use of synthetic DNA in expression of foreign proteins  

Science Journals Connector (OSTI)

Synthetic \\{DNAs\\} and oligonucleotides, which can be prepared conveniently by combining chemical synthesis and enzymatic methods, have been used extensively in recombinant DNA research. Examples include total gene synthesis, probes for the isolation of specific genes from cDNA or genomic libraries, linkers containing specific restriction sites for cloning, primers for DNA and RNA sequencing, and primers for the construction of specific mutations (either deletion, insertion or point mutations) by oligonucleotide-directed site-specific mutagenesis. This article reviews recent advances in the chemical and enzymatic synthesis of oligo- and polynucleotides and the application of synthetic DNA to the expression of foreign proteins. The synthesis of genes, including structural genes and regulatory genes are reviewed. Oligonucleotide-directed site-specific mutagenesis and use of synthetic DNA to optimize foreign protein expression are also discussed.

Hansen M. Hsiung

1986-01-01T23:59:59.000Z

135

Integrating synthetic flood data for selection of regional frequency distribution  

Science Journals Connector (OSTI)

Regional frequency distributions are estimated using respective regional average coefficients of variance, skewness and kurtosis. The regional average coefficients may be significantly biased for a region with inadequate hydrometric data. The objective of this study is to select suitable regional frequency distributions in previously identified five hydrologic homogeneous regions of Nepalese territory with larger focus on data-scarce regions. Incorporation of synthetic flood data has been proposed in two hydrologic regions which have insufficient hydrometric data. A SimHyd rainfall runoff model was employed for the generation of synthetic flood data to augment hydrometric data inadequacy. Selection of best-fit regional frequency distribution was identified using L-moment ratio diagrams and goodness-of-fit measure. The selected distributions were tested by comparing observation and regional distribution factors at eight observation hydrometric sites. Incorporation of synthetic flood data enabled to reduce regional distribution factor error to 6% from that of 10%.

Binaya Kumar Mishra; Kaoru Takara

2014-01-01T23:59:59.000Z

136

QCD Evolution Workshop: Introduction  

SciTech Connect (OSTI)

The introduction talk given at the beginning of QCD Evolution workshop held in Thomas Jefferson National Accelerator Facility (Jefferson Lab) on May 14 -17, 2012.

Alexey Prokudin

2012-12-01T23:59:59.000Z

137

Evaluation of synthetic aggregates for use in concrete  

E-Print Network [OSTI]

of synthetic aggregates may result in 4 irregular aggrege. te behavior with respect to those test procedures. Investigators at the Texas Transportation Institute have sug- g sted some new r. echniques to evaluate the synthet. ic ageregate. Some... in firing temperature and retention t5me, although pressure s1aking losses of all ag, regates were very low which indicated that the dehydration process of all aggro ates wa complete. 11. The NuOH test was able to detect the vari. ation of aggre- gate...

Ahmad, Hafizuddin

1970-01-01T23:59:59.000Z

138

Synthetic investigations into the hexasaccharide domain of landomycin A  

E-Print Network [OSTI]

. 1 Preparation of Disaccharide 14 Our synthetic schemes starts with the formation of the ct-linkage between L- rhodinose and D-olivose. Of the many available methods used to introduce 2-deoxy-ct- glycoside linkages, we chose to employ glycosyl.... 1 Preparation of Disaccharide 14 Our synthetic schemes starts with the formation of the ct-linkage between L- rhodinose and D-olivose. Of the many available methods used to introduce 2-deoxy-ct- glycoside linkages, we chose to employ glycosyl...

Kuo, Yu

2012-06-07T23:59:59.000Z

139

Physics Pathway: A Digital Library Filled with Synthetic Interviews*  

E-Print Network [OSTI]

Physics Pathway: A Digital Library Filled with Synthetic Interviews* Michael G. Christel-412-268-7796 sms@cs.cmu.edu Dean Zollman Department of Physics Kansas State University Manhattan, KS 66506 1-785-532-1619 dzollman@phys.ksu.edu ABSTRACT Physics Pathway is a digital library available through an Adobe Flash portal

Christel, Mike

140

Experimental pressure solution compaction of synthetic halite/calcite aggregates  

E-Print Network [OSTI]

Experimental pressure solution compaction of synthetic halite/calcite aggregates Sergey Zubtsova of weakening of sediment-like aggregates by addition of hard particles. Sieved mixtures of calcite and halite solution. The individual halite grains deform easily by pressure solution creep whereas calcite grains act

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Synthetic aperture design for increased SAR image rate  

DOE Patents [OSTI]

High resolution SAR images of a target scene at near video rates can be produced by using overlapped, but nevertheless, full-size synthetic apertures. The SAR images, which respectively correspond to the apertures, can be analyzed in sequence to permit detection of movement in the target scene.

Bielek, Timothy P. (Albuquerque, NM); Thompson, Douglas G. (Albuqerque, NM); Walker, Bruce C. (Albuquerque, NM)

2009-03-03T23:59:59.000Z

142

THE DEVELOPMENT OF NEW OR IMPROVED SYNTHETIC MATERIALS FROM CORN  

E-Print Network [OSTI]

of materials will diversify the market for corn and for wet- mill biorefineries." Jaffe said that the workTHE DEVELOPMENT OF NEW OR IMPROVED SYNTHETIC MATERIALS FROM CORN DERIVATIVES IS THE GOAL OF A PARTNERSHIP AMONG NJIT RESEARCHERS, THE IOWA CORN PROMOTION BOARD AND THE MID-ATLANTIC TECHNOLOGY, RESEARCH

Bieber, Michael

143

More U. S. , Canada synthetic rubber use seen  

SciTech Connect (OSTI)

According to M.J. Rhoad of the International Institute of Synthetic Rubber Producers Inc., the total U.S. and Canadian natural and synthetic rubber consumption will amount to (in thousands of metric tons/yr) 3385, 3305, 3855, and 4295 for 1979, 1980, 1985, and 1990, respectively, with synthetic rubber use increasing from an estimated 2.54 million metric tons/yr in 1979 to 3.27 million metric tons/yr by 1990, including an increase from 2.35 to 3.02 million metric tons/yr for the U.S. Rubber consumption for tires and tire products in the U.S. will increase at 2%/yr, with synthetic rubber accounting for 61.9% of the rubber used for tires in 1990, down from the 63.4% in 1979. In 1980, the decline in automobile and tire production will cause a 2.4% decline in new rubber consumption. During 1979-90, the amount of rubber used for nontire purposes will increase at 2.5%/yr.

Rhoad, M.J.

1980-02-04T23:59:59.000Z

144

September 16, 2011 Synthetic Biology Leads to Organic Learning  

E-Print Network [OSTI]

principles and mathematical modeling to the design and construction of biological parts, devices, and systems with applications in energy, medicine, and technology. www.bio.davidson -neutral2 1,000,000 gallons in 2008 #12;Synthetic Biology at Davidson College Building Bacterial Computers

Campbell, A. Malcolm

145

Susceptibility of Synthetic Long-Chain Alkylbenzenes to  

E-Print Network [OSTI]

Susceptibility of Synthetic Long-Chain Alkylbenzenes to Degradation in Reducing Marine Sediments R Sunrise Valley Drive, Reston, Virginia 20192 Received April 24, 2008. Revised manuscript received June 24, 2008. Accepted July 02, 2008. Long-chain alkylbenzenes (LCABs) synthesized for production

146

USING SYNTHETIC PLAYERS TO GENERATE WORKLOADS FOR NETWORKED MULTIPLAYER GAMES  

E-Print Network [OSTI]

that generates appropriate workloads for networked multiplayer games. Based on this framework, we have developed a software infrastructure and a prototype synthetic player for the multiplayer adventure game Crossfire Video games have been projected to continue to enjoy solid growth over the coming years (PricewaterhouseCoopers

Katchabaw, Michael James

147

MULTISPECTRAL SYNTHETIC SCENE GENERATION USING ATMOSPHERIC PROPAGATION AND THERMODYNAMIC MODELS  

E-Print Network [OSTI]

of the Central Intelligence Agency, the US Department of Energy, NASA's Jet Propulsion Laboratory, ITEK a requirement. This document represents the current status of a first-principles physics-based synthetic image behavior in a natural environment, and the propagation of energy through the atmosphere. The model

Salvaggio, Carl

148

Flourishing and Discordance: On Two Modes of Human Science Engagement with Synthetic Biology  

E-Print Network [OSTI]

single stranded synthetic DNA, the fact that ligation indo: putting a piece of synthetic DNA in a host. But I thinksynthetic biology was intensifying already-known challenges in recombinant DNA

Stavrianakis, Anthony

2012-01-01T23:59:59.000Z

149

Dynamics of Photoinduced Charge Separation and Charge Recombination in Synthetic DNA Hairpins with Stilbenedicarboxamide Linkers  

Science Journals Connector (OSTI)

Dynamics of Photoinduced Charge Separation and Charge Recombination in Synthetic DNA Hairpins with Stilbenedicarboxamide Linkers ... The dynamics of photoinduced charge separation and charge recombination in synthetic DNA hairpins have been investigated by means of femtosecond and nanosecond transient spectroscopy. ...

Frederick D. Lewis; Taifeng Wu; Xiaoyang Liu; Robert L. Letsinger; Scott R. Greenfield; Scott E. Miller; Michael R. Wasielewski

2000-03-14T23:59:59.000Z

150

Creating Protein Affinity Reagents by Combining Peptide Ligands on Synthetic DNA Scaffolds  

Science Journals Connector (OSTI)

Creating Protein Affinity Reagents by Combining Peptide Ligands on Synthetic DNA Scaffolds ... The peptides were conjugated to synthetic DNA (Table S4 and S5, SI) using standard amine coupling chemistry(23) (Scheme 1, SI). ...

Berea A. R. Williams; Chris W. Diehnelt; Paul Belcher; Matthew Greving; Neal W. Woodbury; Stephen A. Johnston; John C. Chaput

2009-11-06T23:59:59.000Z

151

Modular Design of Artificial Tissue Homeostasis: Robust Control through Synthetic Cellular Heterogeneity  

E-Print Network [OSTI]

Synthetic biology efforts have largely focused on small engineered gene networks, yet understanding how to integrate multiple synthetic modules and interface them with endogenous pathways remains a challenge. Here we present ...

Miller, Miles Aaron

152

Low-Resolution Reconstruction of a Synthetic DNA Holliday Junction Marcelo Nollmann,*y  

E-Print Network [OSTI]

Low-Resolution Reconstruction of a Synthetic DNA Holliday Junction Marcelo No¨llmann,*y W. Marshall

Nollmann, Marcelo

153

Method and apparatus for removing heat from electronic devices using synthetic jets  

DOE Patents [OSTI]

An apparatus for removing heat comprises a heat sink having a cavity, and a synthetic jet stack comprising at least one synthetic jet mounted within the cavity. At least one rod and at least one engaging structure to provide a rigid positioning of the at least one synthetic jet with respect to the at least one rod. The synthetic jet comprises at least one orifice through which a fluid is ejected.

Sharma, Rajdeep; Weaver, Jr., Stanton Earl; Seeley, Charles Erklin; Arik, Mehmet; Icoz, Tunc; Wolfe, Jr., Charles Franklin; Utturkar, Yogen Vishwas

2014-04-15T23:59:59.000Z

154

Electroporation of Synthetic DNA Antigens Offers Protection in Nonhuman Primates Challenged with Highly Pathogenic Avian Influenza Virus  

Science Journals Connector (OSTI)

...ANTIVIRAL AGENTS Electroporation of Synthetic DNA Antigens Offers Protection in...and in vivo electroporation of synthetic DNA-encoded antigens, we observed...recommendationvaccine.pdf . Electroporation of synthetic DNA antigens offers protection in...

Dominick J. Laddy; Jian Yan; Amir S. Khan; Hanne Andersen; Amanda Cohn; Jack Greenhouse; Mark Lewis; Jody Manischewitz; Lisa R. King; Hana Golding; Ruxandra Draghia-Akli; David B. Weiner

2009-02-11T23:59:59.000Z

155

Polymerase chain reaction and synthetic DNA probes: a means of distinguishing the causative agents of syphilis and yaws?  

Science Journals Connector (OSTI)

...Polymerase chain reaction and synthetic DNA probes: a means of distinguishing...Bilthoven, The Netherlands. Synthetic DNA probes specific for either the...Polymerase chain reaction and synthetic DNA probes: a means of distinguishing...

G T Noordhoek; B Wieles; J J van der Sluis; J D van Embden

1990-06-01T23:59:59.000Z

156

Synthetic DNA Replication Bubbles Bound and Unwound with Twofold Symmetry by a Simian Virus 40 T-Antigen Double Hexamer  

Science Journals Connector (OSTI)

ARTICLE ANIMAL VIRUSES Synthetic DNA Replication Bubbles Bound and...examined the binding of TAgDH to synthetic DNA replication bubbles. Tests of...characterized the binding and unwinding of synthetic DNA replication bubbles by the TAgDH...

Natalia V. Smelkova; James A. Borowiec

1998-11-01T23:59:59.000Z

157

Meta-DNA: synthetic biology via DNA nanostructures and hybridization reactions  

Science Journals Connector (OSTI)

...articles 1004 181 131 18 Meta-DNA: synthetic biology via DNA nanostructures...protocols for its manipulation. Synthetic DNA is also cheaply and readily available...specific to mDNA and also occurs in synthetic DNA synthesis. One of the key technological...

2012-01-01T23:59:59.000Z

158

Discrete Assembly of Synthetic Peptide-DNA Triplex Structures from Polyvalent Melamine-Thymine Bifacial Recognition  

E-Print Network [OSTI]

Discrete Assembly of Synthetic Peptide-DNA Triplex Structures from Polyvalent Melamine decadeoxyoligothymi- dine (dT10) tracts to form triplexes with a peptide-DNA strand ratio of 1:2. The synthetic, synthetic melamine-displaying peptide 1 induced assembly of a peptide-DNA triplex structures

Bong, Dennis

159

Meta-DNA: Synthetic Biology via DNA Nanostructures and Hybridization Reactions  

E-Print Network [OSTI]

Meta-DNA: Synthetic Biology via DNA Nanostructures and Hybridization Reactions Harish Chandran University, Durham NC email: reif@cs.duke.edu Abstract The goal of synthetic biology is to design and assemble synthetic systems that mimic bio- logical systems. One of the most fundamental challenge

Reif, John H.

160

Comparison of genomic, plasmid, synthetic, and combined DNA probes for detecting Plasmodium falciparum DNA.  

Science Journals Connector (OSTI)

...pRepHind, and a 21-base-long synthetic DNA probe (PFR1), the sequence...second brief hybridization with synthetic DNA to amplify signals from samples...pRepHind, and a 21-base-long synthetic DNA probe (PFR1), the sequence...

G L McLaughlin; W E Collins; G H Campbell

1987-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Dynamics of Photoinduced Charge Transfer and Hole Transport in Synthetic DNA Hairpins  

Science Journals Connector (OSTI)

Dynamics of Photoinduced Charge Transfer and Hole Transport in Synthetic DNA Hairpins ... The dynamics of photoinduced charge separation and charge recombination processes in synthetic DNA hairpins have been investigated by means of femtosecond transient absorption spectroscopy. ... for a family of synthetic DNA hairpins in which a stilbene dicarboxamide forms a bridge connecting two oligonucleotide arms. ...

Frederick D. Lewis; Robert L. Letsinger; Michael R. Wasielewski

2000-12-13T23:59:59.000Z

162

Development of natural and synthetic DNA probes for OXA-2 and TEM-1 beta-lactamases.  

Science Journals Connector (OSTI)

...Article Development of natural and synthetic DNA probes for OXA-2 and TEM-1...polymorphism. Development of natural and synthetic DNA probes for OXA-2 and TEM-1...5 Development of Natural and Synthetic DNA Probes for OXA-2 and TEM-1...

M Boissinot; J Mercier; R C Levesque

1987-05-01T23:59:59.000Z

163

A set of Macintosh computer programs for the design and analysis of synthetic genes  

Science Journals Connector (OSTI)

......are given for the creation of synthetic DNA sequences for the bovine prethrombin-2...are given for the creation of synthetic DNA sequences for the bovine prethrombin-2...are given for the creation of synthetic DNA sequences for the bovine prethrombin-2......

M. P. Weiner; H.A. Scheraga

1989-07-01T23:59:59.000Z

164

Fusion of multiple image types for the creation of radiometrically-accurate synthetic scenes  

E-Print Network [OSTI]

Fusion of multiple image types for the creation of radiometrically-accurate synthetic scenes-in-the-loop requirements for many aspects of synthetic hyperspectral scene construction. Through a fusion of 3D lidar data: lidar, hyperspectral, fusion, DIRSIG, building reconstruction, synthetic scene 1 INTRODUCTION Over

Kerekes, John

165

Effect of Synthetic Drilling Fluid Base Oils on Asphaltene Stability and Wetting in Sandstone Cores  

Science Journals Connector (OSTI)

Effect of Synthetic Drilling Fluid Base Oils on Asphaltene Stability and Wetting in Sandstone Cores† ... In synthetic oil-based drilling fluids, diesel has been replaced, for environmental reasons, by base oils that are very low in aromatic hydrocarbons. ... Paraffinic and olefinic base oils used to make up some synthetic oil-based drilling muds can destabilize asphaltenes. ...

Yongsheng Zhang; Jianxin Wang; Norman R. Morrow; Jill S. Buckley

2005-03-18T23:59:59.000Z

166

The Evolution of Epitype  

Science Journals Connector (OSTI)

...Jonathan Arnold, Kristofer Mussar, Wyatt Anderson, Eileen Roy, Benjamin Nelson, and anonymous reviewers contributed useful editorial...107-116. Kusakabe, T. , Araki, I., Satoh, N., and Jeffery, W.R. (1997). Evolution of chordate actin genes: Evidence...

Richard B. Meagher

2010-06-15T23:59:59.000Z

167

Synthetic aperture integration (SAI) algorithm for SAR imaging  

DOE Patents [OSTI]

A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.

Chambers, David H; Mast, Jeffrey E; Paglieroni, David W; Beer, N. Reginald

2013-07-09T23:59:59.000Z

168

Renewable Energy from Synthetic Biology (LBNL Science at the Theater)  

ScienceCinema (OSTI)

Jay Keasling, co-leader of Berkeley Lab's Helios Project, is a groundbreaking researcher in the new scientific field of synthetic biology. In Helios, he directs the biology program, incorporating a range of approaches to increasing the efficacy and economy of plants and cellulose-degrading microbes to make solar-based fuels. He is a UC Berkeley professor of Chemical and Bioengineering, and founder of Amyris Biotechnologies, a company that was honored as a Technology Pioneer for 2006 by the World Economic Forum. Keasling has succeeded in using synthetic biology to develop a yeast-based production scheme for precursors of the antimalarial drug artemisinin in work funded by the Bill & Melinda Gates Foundation.

Keasling, Jay

2011-04-28T23:59:59.000Z

169

Topologically Robust Transport of Photons in a Synthetic Gauge Field  

E-Print Network [OSTI]

Electronic transport in low dimensions through a disordered medium leads to localization. The addition of gauge fields to disordered media leads to fundamental changes in the transport properties. For example, chiral edge states can emerge in two-dimensional systems with a perpendicular magnetic field. Here, we implement a "synthetic'' gauge field for photons using silicon-on-insulator technology. By determining the distribution of transport properties, we confirm the localized transport in the bulk and the suppression of localization in edge states, using the "gold standard'' for localization studies. Our system provides a new platform to investigate transport properties in the presence of synthetic gauge fields, which is important both from the fundamental perspective of studying photonic transport and for applications in classical and quantum information processing.

Mittal, S; Faez, S; Migdall, A; Taylor, J M; Hafezi, M

2014-01-01T23:59:59.000Z

170

Synthetic nanotubes lay foundation for new technology: Artificial pores  

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

Synthetic nanotubes lay foundation for new technology: Artificial pores Synthetic nanotubes lay foundation for new technology: Artificial pores mimic key features of natural pores By Tona Kunz * July 17, 2012 Tweet EmailPrint Scientists have overcome key design hurdles to expand the potential uses of nanopores and nanotubes. The creation of smart nanotubes with selective mass transport opens up a wider range of applications for water purification, chemical separation and fighting disease. Nanopores and their rolled up version, nanotubes, consist of atoms bonded to each other in a hexagonal pattern to create an array of nanometer-scale openings or channels. This structure creates a filter that can be sized to select which molecules and ions pass into drinking water or into a cell. The same filter technique can limit the release of chemical by-products

171

A DNA Nanostructure Platform for Directed Assembly of Synthetic Vaccines  

Science Journals Connector (OSTI)

A DNA Nanostructure Platform for Directed Assembly of Synthetic Vaccines ... Here we report the design and synthesis of a 1,669-nucleotide, single-stranded DNA mol. ... These DL-DNAs induced greater amts. of tumor necrosis factor-? and interleukin-6 from RAW264.7 macrophage-like cells than did a mixt. of Y-DNA with the same sequences as the corresponding DL-DNA. ...

Xiaowei Liu; Yang Xu; Tao Yu; Craig Clifford; Yan Liu; Hao Yan; Yung Chang

2012-07-03T23:59:59.000Z

172

The stability and chemical modification of synthetically useful enzymes  

E-Print Network [OSTI]

THE STABILITY AND CHEMICAL MODIFICATION OF SYNTHETICALLY USEFUL ENZYMES A Thesis by GORDON LEE SMITH Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... May 1988 Major Subject: Chemistry THE STABILITY AND CHEMICAL MODIFICATION OF STATICALLY USEFUL ENZYMES A Thesis by GORDON LEE SMITH Approved as to style and content by: Chi-Huey ong (Chairman of Committee) A. Ian Scott (Member) B. J...

Smith, Gordon Lee

2012-06-07T23:59:59.000Z

173

Synthetic Antimicrobial Oligomers Induce Composition-dependent Topological  

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

Synthetic Antimicrobial Oligomers Induce Synthetic Antimicrobial Oligomers Induce Composition-dependent Topological Transition in Membranes The development of bacterial resistance to conventional antibiotics is a major public health concern. For example, methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE) and Staphylococcus aureus (VRSA) have emerged as common nosocomial (hospital-originating) infections. Circumvention of such resistance may be possi ble by emulating host defense antimicrobial peptides (AMP's), which are found in a broad range of species and have broad-spectrum antimicrobial properties. These AMP's have two structural motifs in common: they are cationic and amphipathic. It is thought that electro static interactions facilitate association of the peptide with the anionic bacterial membrane and amphiphilic interactions act to form pores in the bacterial membrane, leading to cell death. Thus, AMP's target generic characteristics common to the mem branes of many pathogenic species, and resistance to such natural defences evolves much more slowly than for conventional antibiotics. The exact molecular mechanisms by which membrane pores are formed are still not fully understood, although three major models ('barrel-stave', 'toroidal pore', 'carpet') have been proposed. Moreover, these models do not ex haustively cover all possibilities, as AMP activity is not always correlated with the loss of a permeability barrier. Understanding the structural tenden cies generated in antimicrobial-membrane interactions is an essential step to elucidating such molecular mechanisms and therefore to the pre dictive design of synthetic AMP analogs.

174

Better practices and synthetic fluid improve drilling rates  

SciTech Connect (OSTI)

Improved drilling practices, combined with the use of olefin-based synthetic drilling fluids, have dramatically reduced drilling time and costs in a difficult drilling area in the Gulf of Mexico. In the South Pass area, Marathon Oil Co. and other operators have had wells with long drilling times and high costs. In addition to the two wells with record penetration rates, routine drilling rates have also increased from the use of synthetic mud and careful drilling practices. Through application of these improved drilling practices, 2,000--3,000 ft/day can be drilled routinely. Marathon achieves this goal by applying the experience gained on previous wells, properly training and involving the crews, and using innovative drilling systems. Improved drilling practices and systems are just one part of successful, efficient drilling. Rig site personnel are major contributors to safely and successfully drilling at high penetration rates for extended periods. The on site personnel must act as a team and have the confidence and proper mental attitude about what is going on downhole. The paper describes the drilling history in the South Pass area, the synthetic drilling fluid used, cuttings handling, hole cleaning, drilling practices, bottom hole assemblies, and lost circulation.

White, W. (Marathon Oil Co., Lafayette, LA (United States)); McLean, A.; Park, S. (M-I Drilling Fluids, Houston, TX (United States))

1995-02-20T23:59:59.000Z

175

Formulation of soluble oils with synthetic and petroleum sulfonates  

SciTech Connect (OSTI)

Metalworking fluids for metal removal are formulated to provide cooling, lubrication, and rust protection when cutting and machining metals. There are basically four types of cutting fluids: straight oils, synthetics, semisynthetic fluids and soluble oils. The last type is the most widely used for metal removal operations such as cutting, drilling and grinding. Soluble oils used for metalworking operations are normally the oil-in-water type, with oil as the internal phase and water as the external phase. The soluble oils can have rather complex compositions, usually containing two or more emulsifiers and coupling agents, as well as additives to provide rust inhibition, lubricity, detergency, resistance to bacterial attack and foam control. The dominant emulsifier in a soluble oil is usually sodium sulfonate which also has the secondary benefit of being a rust inhibitor. Soluble oil emulsions based on petroleum or synthetic sulfonates have been found to improve lubrication and cleaning of metal parts and equipment. As has been done previously, a series of emulsification studies were conducted using petroleum and synthetic sulfonates. Emulsifier level, coemulsifiers and minor formulation adjustments were made to optimize each system. This study was made using naphthenic oil basestock. Formulations were evaluated using criteria including concentrate stability, hard and soft water emulsion stability, emulsibility, foaming tendency and response to defoamers, antirust properties and cost effectiveness of individual formulations. The results of these evaluations are presented in the present paper.

Eckard, A.; Riff, I.; Weaver, J. [Witco Corp., Oakland, NJ (United States)

1997-06-01T23:59:59.000Z

176

Method for producing and regenerating a synthetic CO[sub 2] acceptor  

DOE Patents [OSTI]

A method is described for producing a synthetic CO[sub 2] acceptor by feeding a mixture of finely divided silica and at least one finely divided calcium compound selected from the group consisting of calcium oxide and calcium carbonate to a fluidized bed; operating the fluidized bed at suitable conditions to produce pellets of synthetic CO[sub 2] acceptor and recovering the pellets of synthetic CO[sub 2] acceptor from the fluidized bed. Optionally, spent synthetic CO[sub 2] acceptor can be charged to the fluidized bed to produce regenerated pellets of synthetic CO[sub 2] acceptor. 1 fig.

Lancet, M. S.; Curran, G. P.; Gorin, E.

1982-05-18T23:59:59.000Z

177

Method for producing and regenerating a synthetic CO.sub.2 acceptor  

DOE Patents [OSTI]

A method for producing a synthetic CO.sub.2 acceptor by feeding a mixture of finely divided silica and at least one finely divided calcium compound selected from the group consisting of calcium oxide and calcium carbonate to a fluidized bed; operating the fluidized bed at suitable conditions to produce pellets of synthetic CO.sub.2 acceptor and recovering the pellets of synthetic CO.sub.2 acceptor from the fluidized bed. Optionally, spent synthetic CO.sub.2 acceptor can be charged to the fluidized bed to produce regenerated pellets of synthetic CO.sub.2 acceptor.

Lancet, Michael S. (Pittsburgh, PA); Curran, George P. (Pittsburgh, PA); Gorin, Everett (San Rafael, CA)

1982-01-01T23:59:59.000Z

178

Comparison of Experimental and Model Data for the Evaporation of a Synthetic Topopah Spring Tuff Pore Water, Yucca Mountain, NV  

SciTech Connect (OSTI)

The evaporation of a range of synthetic pore water solutions representative of the potential high-level-nuclear-waste repository at Yucca Mountain, NV is being investigated. The motivation of this work is to understand and predict the range of brine compositions that may contact the waste containers from evaporation of pore waters, because these brines could form corrosive thin films on the containers and impact their long-term integrity. A relatively complex synthetic Topopah Spring Tuff pore water was progressively concentrated by evaporation in a closed vessel, heated to 95 C in a series of sequential experiments. Periodic samples of the evaporating solution were taken to determine the evolving water chemistry. According to chemical divide theory at 25 C and 95 C our starting solution should evolve towards a high pH carbonate brine. Results at 95 C show that this solution evolves towards a complex brine that contains about 99 mol% Na{sup +} for the cations, and 71 mol% Cl{sup -}, 18 mol% {Sigma}CO{sub 2}(aq), 9 mol% SO{sub 4}{sup 2-} for the anions. Initial modeling of the evaporating solution indicates precipitation of aragonite, halite, silica, sulfate and fluoride phases. The experiments have been used to benchmark the use of the EQ3/6 geochemical code in predicting the evolution of carbonate-rich brines during evaporation.

Alai, M; Sutton, M; Carroll, S

2003-10-14T23:59:59.000Z

179

Shuffling of DNA Cassettes in a Synthetic Integron  

Science Journals Connector (OSTI)

The complexity of even small gene networks makes them hardly amenable to rational design. Testing random combinations of genetic elements in a directed evolution procedure is thus of interest for many applicat...

David Bikard; Didier Mazel

2013-01-01T23:59:59.000Z

180

Evolution Vs. Thermodynamics  

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

Evolution Vs. Thermodynamics Evolution Vs. Thermodynamics Name: Murphy iii Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: Does the THEORY of evolution contradict the Second Law of thermodynamics? If not, how can an organic system grow in complexity in light of that law? Do not even try to tell me that hot methane soup has less chaos than cool DNA. Replies: The second law only says that the entropy (disorder) of a complete closed system must increase with time, not that the orderliness of one part of that system cannot increase. Increasing complexity of life must be balanced with more increase of disorder somewhere else in the system. Life itself increases order, but only of a small part of the overall system, whose entropy, when all parts are added up, must always be increasing

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" from the National Library of EnergyBeta (NLEBeta).
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181

Highly Sensitive in Vitro Selections for DNA-Linked Synthetic Small Molecules with Protein Binding Affinity and Specificity  

E-Print Network [OSTI]

Highly Sensitive in Vitro Selections for DNA-Linked Synthetic Small Molecules with Protein Binding oligonucleotides to corresponding synthetic molecules, either as a consequence of DNA-templated organic synthesis3 or as a result of conjugating DNA to synthetic molecules, in theory enables synthetic molecules to satisfy

Liu, David R.

182

Automating the purification and isolation of synthetic DNA  

SciTech Connect (OSTI)

The authors describe the application of robotics to the purification and isolation of synthetic oligodeoxyribunucleotides. Starting with commercially available components, they have designed and programmed a robot based system that can isolate oligonucleotides from polyacrylamide gel slices, prepare oligonucleotides for purification by polyacrylamide gel electrophoresis and execute a rapid purification protocol on a disposable C-18 reverse phase column. Each operation has been fully automated, including evaporative centrifugation, such that the system can execute any two procedures simultaneously with a throughput of 12 samples in about six hours.

Jones, S.S.; Brown, J.E.; Vanstone, D.A.; Stone, D.K.; Brown, E.L.

1987-01-01T23:59:59.000Z

183

Fate of Mercury in Synthetic Gypsum Used for Wallboard Production  

SciTech Connect (OSTI)

This report presents and discusses results from the project 'Fate of Mercury in Synthetic Gypsum Used for Wallboard Production', performed at five different full-scale commercial wallboard plants. Synthetic gypsum produced by wet flue gas desulfurization (FGD) systems on coal-fired power plants is commonly used in the manufacture of wallboard. This practice has long benefited the environment by recycling the FGD gypsum byproduct, which is becoming available in increasing quantities, decreasing the need to landfill this material, and increasing the sustainable design of the wallboard product. However, new concerns have arisen as recent mercury control strategies involve the capture of mercury in FGD systems. The objective of this study has been to determine whether any mercury is released into the atmosphere at wallboard manufacturing plants when the synthetic gypsum material is used as a feedstock for wallboard production. The project has been co-funded by the U.S. DOE National Energy Technology Laboratory (Cooperative Agreement DE-FC26-04NT42080), USG Corporation, and EPRI. USG Corporation is the prime contractor, and URS Group is a subcontractor. The project scope included seven discrete tasks, each including a test conducted at various USG wallboard plants using synthetic gypsum from different wet FGD systems. The project was originally composed of five tasks, which were to include (1) a base-case test, then variations representing differing power plant: (2) emissions control configurations, (3) treatment of fine gypsum particles, (4) coal types, and (5) FGD reagent types. However, Task 5,could not be conducted as planned and instead was conducted at conditions similar to Task 3. Subsequently an opportunity arose to test gypsum produced from the Task 5 FGD system, but with an additive expected to impact the stability of mercury, so Task 6 was added to the project. Finally, Task 7 was added to evaluate synthetic gypsum produced at a power plant from an additional coal type. In the project, process stacks in the wallboard plant were sampled using the Ontario Hydro method. In every task, the stack locations sampled included a gypsum dryer and a gypsum calciner. In Tasks 1 and 4 through 7, the stack of the dryer for the wet wallboard product was also tested. Also at each site, in-stream process samples were collected and analyzed for mercury concentration before and after each significant step in wallboard production. These results and process data were used to construct mercury mass balances across the wallboard plants. The results from the project showed a wide range of percentage mercury losses from the synthetic gypsum feedstocks as measured by the Ontario Hydro method at the process stacks, ranging from 2% to 55% of the mercury in the gypsum feedstock. For the tasks exceeding 10% mercury loss across the wallboard plant, most of the loss occurred across the gypsum calciner. When total wallboard emissions remained below 10%, the primary emission location varied with a much less pronounced difference in emission between the gypsum dryer, calciner and board dryer. For all seven tasks, the majority of the mercury emissions were measured to be in the elemental form (Hg{sup 0}). Overall, the measured mercury loss mass rates ranged from 0.01 to 0.17 grams of mercury per dry ton of synthetic gypsum processed, or 0.01 to 0.4 pounds of mercury released per million square feet of wallboard produced from synthetic gypsum. The Coal Combustion Product Production and Use Survey from the American Coal Ash Association (ACAA) indicate that 7,579,187 short tons of synthetic gypsum were used for wallboard production in 2006. Extrapolating the results of this study to the ACAA industry usage rate, we estimate that mercury releases from wallboard production plants in 2006 ranged between 150 to 3000 pounds for the entire U.S. wallboard industry. With only seven sets of wallboard plant measurements, it is difficult to draw firm conclusions about what variables impact the mercury loss percentages across the wallboard plants. One significant o

Jessica Sanderson

2007-12-31T23:59:59.000Z

184

Frequency domain computation of synthetic vertical seismic profiles  

E-Print Network [OSTI]

, and the artifacts in the time function. The algorithm fails when the total attenuation xfx/Qv is so large that underflow occurs. For this model and multi-precision computation the failure point of the algorithm occurs when sfx/Qv is about 30. Synthetic VSPs were... in Figure 6c. The relative amplitude between events Al and A2 at interface 1 has been checked against the theoretical expression: Amp(A2)/Amp(A') = [(r /r )-r r ]exp[ (~f0/Qv)2x] = -1. 2693 exp(-0. 050265f ). 0 (28) This formula is the exact expression...

Wu, Ru-Chuan

2012-06-07T23:59:59.000Z

185

ECOLOGY & EVOLUTION CONSERVATION BIOLOGY  

E-Print Network [OSTI]

.arlettaz@iee.unibe.ch www.conservation.unibe.ch Grassland management: designing tomorrow's farmland for biodiversity 1ECOLOGY & EVOLUTION CONSERVATION BIOLOGY Prof. Dr Raphaël Arlettaz Head of the division of Conservation Biology Office: Erlachstrasse 9a Mail: Baltzerstrasse 6 CH­3012 Bern +41 31 631 31 61 +41 79 637

Richner, Heinz

186

Evolution of Life on Earth EVOLUTION OF LIFE ON EARTH  

E-Print Network [OSTI]

Evolution of Life on Earth #12;EVOLUTION OF LIFE ON EARTH #12;Earth ~4.5 billion years ago A bad day .... #12;Old (Archean) Rocks #12;4.4 Billion year old Zircon Earth was temperate and had water 4.4 billion years ago! #12;#12;EVOLUTION OF LIFE ON EARTH #12;Making Organic Molecules : Miller & Urey Famous

Shirley, Yancy

187

Power Grid Growth and Evolution  

Science Journals Connector (OSTI)

This chapter models and analyzes in detail the slow dynamics in power grids. The driving forces for power grid evolutions are identified and then utilized to construct the general evolution model for complex power grids

Shengwei Mei; Xuemin Zhang; Ming Cao

2011-01-01T23:59:59.000Z

188

A comparison of spotlight synthetic aperture radar image formation techniques  

SciTech Connect (OSTI)

Spotlight synthetic aperture radar images can be formed from the complex phase history data using two main techniques: (1) polar-to-cartesian interpolation followed by two-dimensional inverse Fourier transform (2DFFT), and (2) convolution backprojection (CBP). CBP has been widely used to reconstruct medical images in computer aided tomography, and only recently has been applied to form synthetic aperture radar imagery. It is alleged that CBP yields higher quality images because (1) all the Fourier data are used and (2) the polar formatted data is used directly to form a 2D Cartesian image and therefore 2D interpolation is not required. This report compares the quality of images formed by CBP and several modified versions of the 2DFFT method. We show from an image quality point of view that CBP is equivalent to first windowing the phase history data and then interpolating to an exscribed rectangle. From a mathematical perspective, we should expect this conclusion since the same Fourier data are used to form the SAR image. We next address the issue of parallel implementation of each algorithm. We dispute previous claims that CBP is more readily parallelizable than the 2DFFT method. Our conclusions are supported by comparing execution times between massively parallel implementations of both algorithms, showing that both experience similar decreases in computation time, but that CBP takes significantly longer to form an image.

Knittle, C.D.; Doren, N.E.; Jakowatz, C.V.

1996-10-01T23:59:59.000Z

189

Spatially Interpolated Nonlinear Anodization in Synthetic Aperture Radar Imagery  

SciTech Connect (OSTI)

Spatially Interpolated Nonlinear Anodization in Synthetic Aperture Original formulation of spatially variant anodization for complex synthetic aperture radar (SAR) imagery oversampled at twice the Nyquist rate (2.OX). Here we report a spatially interpolating, noninteger-oversampled SVA sidelobe. The pixel's apparent IPR location is assessed by comparing its value to the sum of its value plus weighted comparable for exact interpolation. However, exact interpolation implies an ideal sine interpolator3 and large components may not be necessary. Note that P is the summation of IPR diagonal values. The value of a sine IPR on the diagonals is a sine-squared; values much less than cardinal direction (m, n) values. This implies that cardinal direction interpolation requires higher precision than diagonal interpolation. Consequently, we employed a smaller set. The spatially interpolated SVA used an 8-point/4-point sine interpolator described above. Table 1 shows the Table 1 results show a two-times speed-up using the 1.3x oversampled and spatially interpolated SVA over the Figure 1d. Detected results of 1.3x oversampled sine interpolated spatially variant

Eichel, Paul H.; Jakowatz, Jr., Charles V.; Yocky, David A.

1999-06-29T23:59:59.000Z

190

Synthetic Generation of Social Network Data With Endorsements  

E-Print Network [OSTI]

In many simulation studies involving networks there is the need to rely on a sample network to perform the simulation experiments. In many cases, real network data is not available due to privacy concerns. In that case we can recourse to synthetic data sets with similar properties to the real data. In this paper we discuss the problem of generating synthetic data sets for a certain kind of online social network, for simulation purposes. Some popular online social networks, such as LinkedIn and ResearchGate, allow user endorsements for specific skills. For each particular skill, the endorsements give rise to a directed subgraph of the corresponding network, where the nodes correspond to network members or users, and the arcs represent endorsement relations. Modelling these endorsement digraphs can be done by formulating an optimization problem, which is amenable to different heuristics. Our construction method consists of two stages: The first one simulates the growth of the network, and the second one solves ...

Pérez-Rosés, Hebert

2014-01-01T23:59:59.000Z

191

Synthesis, Structure, and Photochemistry of Exceptionally Stable Synthetic DNA Hairpins with Stilbene Diether Linkers  

Science Journals Connector (OSTI)

Synthesis, Structure, and Photochemistry of Exceptionally Stable Synthetic DNA Hairpins with Stilbene Diether Linkers ... Bis(oligonucleotide) conjugates with synthetic linkers connecting short complementary oligonucleotides are known to form synthetic DNA or RNA hairpins which are, in some cases, more stable than natural hairpins possessing nucleotide linkers.1 Letsinger and Wu2 reported the use of a stilbenedicarboxamide (Sa, Chart 1) linker which formed stable hairpin structures possessing as few as three T:A or two G:C base pairs. ... The ability of the Sa linker to serve as an electron acceptor has been exploited in our studies of hole injection and migration processes in synthetic DNA hairpins. ...

Frederick D. Lewis; Yansheng Wu; Xiaoyang Liu

2002-09-21T23:59:59.000Z

192

E-Print Network 3.0 - atp synthetic flux Sample Search Results  

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

flux Search Powered by Explorit Topic List Advanced Search Sample search results for: atp synthetic flux Page: << < 1 2 3 4 5 > >> 1 A genetically encoded fluorescent reporter...

193

Feasibility of Steam Hydrogasification of Microalgae for Production of Synthetic Fuels  

E-Print Network [OSTI]

Gasifier Intermediate products Low Energy Gas Final product Power Steam Gas Synthetic Liquids Spark and diesel engines Process Heat & Power Medium &

Suemanotham, Amornrat

2014-01-01T23:59:59.000Z

194

Effect of synthetic conditions on the properties of methyltrimethoxysilane-based aerogels  

Science Journals Connector (OSTI)

The effect of synthetic conditions on the properties of methyltrimethoxysilane-based aerogels is reported. All of the aerogels are hydrophobic and can efficiently adsorb organic...

S. A. Lermontov; N. A. Sipyagina; A. N. Malkova…

2014-12-01T23:59:59.000Z

195

Use of Waste Materials from the Production of Synthetic Rubber for Preparing Aluminosilicate Ceramics  

Science Journals Connector (OSTI)

An aluminum-silicon-chromium powder (ASC) extracted from waste gases in synthetic rubber production is used as an addition to kaolin-...

V. N. Antsiferov; T. S. Golodnova; S. E. Porozova…

2002-09-01T23:59:59.000Z

196

A new technology for producing synthetic liquid hydrocarbons from gaseous hydrocarbons  

Science Journals Connector (OSTI)

Conventional technologies of synthetic liquid fuels (SLF) production from gaseous hydrocarbons by producing synthesis ... liquid hydrocarbons are examined. A high-efficiency SLF production technology that allows ...

D. L. Astanovskii; L. Z. Astanovskii; A. L. Lapidus

2012-09-01T23:59:59.000Z

197

Uncertainty in synthetic biology for release and possibilities for regulation under the Toxic Substances Control Act  

E-Print Network [OSTI]

The emerging field of synthetic biology is developing rapidly and promises diverse applications. Many anticipated applications, particularly those involving release of engineered microbes into the environment or human ...

Lightfoot, Shlomiya

2014-01-01T23:59:59.000Z

198

Fate of Mercury in Synthetic Gypsum Used for Wallboard Production  

SciTech Connect (OSTI)

This report presents and discusses results from Task 6 of the study 'Fate of Mercury in Synthetic Gypsum Used for Wallboard Production,' performed at a full-scale commercial wallboard plant. Synthetic gypsum produced by wet flue gas desulfurization (FGD) systems on coal-fired power plants is commonly used in the manufacture of wallboard. This practice has long benefited the environment by recycling the FGD gypsum byproduct, which is becoming available in increasing quantities, decreasing the need to landfill this material, and increasing the sustainable design of the wallboard product. However, new concerns have arisen as recent mercury control strategies involve the capture of mercury in FGD systems. The objective of this study is to determine whether any mercury is released into the atmosphere when the synthetic gypsum material is used as a feedstock for wallboard production. The project is being co-funded by the U.S. DOE National Energy Technology Laboratory (Cooperative Agreement DE-FC26-04NT42080), USG Corporation, and EPRI. USG Corporation is the prime contractor, and URS Group is a subcontractor. The project scope now includes six discrete tasks, each conducted at various USG wallboard plants using synthetic gypsum from different FGD systems. The project was originally composed of five tasks, which were to include (1) a baseline test, then variations representing differing power plant: (2) emissions control configurations, (3) treatment of fine gypsum particles, (4) coal types, and (5) FGD reagent types. However, Task 5, which was to include testing with an alternate FGD reagent, could not be conducted as planned. Instead, Task 5 was conducted at conditions similar to Task 3, although with gypsum from an alternate FGD system. Subsequent to conducting Task 5 under these revised conditions, an opportunity arose to test gypsum produced at the same FGD system, but with an additive (Degussa Corporation's TMT-15) being used in the FGD system. TMT-15 was expected to impact the stability of mercury in synthetic gypsum used to produce wallboard, so Task 6 was added to the project to test this theory. In this project, process stacks in the wallboard plant have been sampled using the Ontario Hydro method. For every task, the stack locations sampled have included a dryer for the wet gypsum as it enters the plant and a gypsum calciner. For Tasks 1, 4, 5 and 6, the stack of the dryer for the wet wallboard product was also tested. Also at each site, in-stream process samples were collected and analyzed for mercury concentration before and after each significant step in wallboard production. The Ontario Hydro results, process sample mercury concentration data, and process data were used to construct mercury mass balances across the wallboard plants. Task 6 was conducted at a wallboard plant processing synthetic gypsum from a power plant that fires Eastern bituminous coal. The power plant has a single-loop, open spray tower limestone forced oxidation FGD system, with the forced oxidation conducted in the reaction tank integral with the FGD absorber. The FGD system has gypsum fines blow down as part of the dewatering step. The power plant is equipped with a selective catalytic reduction (SCR) system for NOX emissions control, and the SCR was in service during the time period the gypsum tested was produced. Also, as mentioned above, Degussa additive TMT-15 was being added to the FGD system when this gypsum was produced. The results of the Task 6 stack testing, as measured by the Ontario Hydro method, detected that an average of 55% of the incoming mercury was emitted during wallboard production. These losses were distributed as about 4% across the dryer mill, 6% across the board dryer kiln, and 45% across the kettle calciner. Emissions were similar to what Task 5 results showed on a percentage basis, but about 30% lower on a mass basis. The same power plant FGD system produced the synthetic gypsum used in Task 5 (with no use of TMT-15) and in Task 6 (with TMT-15 added to the FGD system). The lower emissions on a mass basis appeared

Jessica Sanderson; Gary M. Blythe; Mandi Richardson

2006-12-01T23:59:59.000Z

199

Environment and Protostellar Evolution  

E-Print Network [OSTI]

Even today in our Galaxy, stars form from gas cores in a variety of environments, which may affect the properties of resulting star and planetary systems. Here we study the role of pressure, parameterized via ambient clump mass surface density, on protostellar evolution and appearance, focussing on low-mass, Sun-like stars and considering a range of conditions from relatively low pressure filaments in Taurus, to intermediate pressures of cluster-forming clumps like the Orion Nebula Cluster (ONC), to very high pressures that may be found in the densest Infrared Dark Clouds (IRDCs) or in the Galactic Center (GC). We present unified analytic and numerical models for collapse of prestellar cores, accretion disks, protostellar evolution and bipolar outflows, coupled to radiative transfer (RT) calculations and a simple astrochemical model to predict CO gas phase abundances. Prestellar cores in high pressure environments are smaller and denser and thus collapse with higher accretion rates and efficiencies, resulting...

Zhang, Yichen

2014-01-01T23:59:59.000Z

200

Improved practices, synthetic mud drive record 24-hr drilling  

SciTech Connect (OSTI)

Revised and improved drilling practices resulted in increased rate of penetration (ROP), improved hole cleaning, decreased circulating time, fewer instances of stuck pipe and reduced total drilling days. Rig equipment modifications and optimized techniques, combined with olefin-based synthetic fluid, produced significant efficiency improvements and cost reductions. Total-project strategy allows best technologies to be used, even if they are not low bid. In the Gulf of Mexico, a total-project concept helped Marathon drill back-to-back record 24-hr footages. Methods and philosophy described in this article allow drillers to choose optimum technologies, tools, materials and service performance for achieving optimum or lowest cost per foot rather than always using low bid.

Collins, G.J. [Marathon Oil Co., Houston, TX (United States); White, W.W. [Marathon Oil Co., Lafayette, LA (United States)

1995-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Synthetic fuels technology overview with health and environmental impacts  

SciTech Connect (OSTI)

An introduction is presented to the following synthetic fuels technologies: (1) the Lurgi gasification of coal (2) the Fischer-Tropsch liquefaction of coal (3) coal-methanol conversion (4) donor solvent gas liquefaction (5) Tosco surface shale retorting ethanol production from coal and (6) the coal-methanol-gasoline conversion process. After establishing the system characteristics of these six technologies, consideration is given to their potential major health, safety, environmental and socio-economic impacts at the global, regional and local levels. It is determined that the main global consequence of synfuels development is climate modification, to which may be added the regional impact of dry and wet deposition of gaseous and particulate pollutants, and land and water quality deterioration due to soil erosion at the local level.

Bentz, E.J. Jr.; Salmon, E.J.

1981-01-01T23:59:59.000Z

202

R2oDNA Designer: Computational Design of Biologically Neutral Synthetic DNA Sequences  

Science Journals Connector (OSTI)

R2oDNA Designer: Computational Design of Biologically Neutral Synthetic DNA Sequences ... As the cost of whole gene synthesis is decreasing, whole genome synthesis at the other end of the spectrum has expanded our horizons to the prospect of fully engineered synthetic cells. ...

Arturo Casini; Georgia Christodoulou; Paul S. Freemont; Geoff S. Baldwin; Tom Ellis; James T. MacDonald

2014-01-31T23:59:59.000Z

203

Estimation of Probe Cell Locations in High-density Synthetic-oligonucleotide DNA Microarrays  

E-Print Network [OSTI]

Estimation of Probe Cell Locations in High-density Synthetic-oligonucleotide DNA Microarrays Harry Institute, Durham, NC 27710 1 #12;High-density synthetic-oligonucliotide DNA microarrays (HSDMs), which area required to hybridise an RNA sample to DNA probes. On an HSDM surface, hundreds of thousands

West, Mike

204

A synthetic peptide with estrogen-like activity derived from a phage-display peptide library  

E-Print Network [OSTI]

A synthetic peptide with estrogen-like activity derived from a phage- display peptide library. ER and ER exhibit a high degree of homology at the DNA binding domain (97%) whereas at the ligand agonists or antagonists are mainly synthetic compounds prepared by modifications that retain the core

Kasher, Roni

205

Orthogonal Control of Endogenous Gene Expression in Mammalian Cells Using Synthetic Ligands  

E-Print Network [OSTI]

ARTICLE Orthogonal Control of Endogenous Gene Expression in Mammalian Cells Using Synthetic Ligands South Mathews Avenue, Urbana, Illinois 61801 ABSTRACT: Gene switches have wide utility in synthetic-finger DNA binding domain (DBD). Our gene switch is specifically and reversibly con- trolled by 4

Zhao, Huimin

206

Synthetic Biology Slides by Daisuke KigaSlides by Daisuke Kiga  

E-Print Network [OSTI]

#12; DNA RNA #12;Synthetic Biology Slides by Daisuke KigaSlides by Daisuke Kiga #12;Two #12; DNA RNA DNA DNA #12; DNA RNA DNA DNA #12; DNA RNA DNA DNA translation DNAamino acid translation signal transduction rhythm RNA protein nucleotide Synthetic Biology #12

Hagiya, Masami

207

Analysis of Combinatorial cis-Regulation in Synthetic and Genomic Promoters  

E-Print Network [OSTI]

Analysis of Combinatorial cis-Regulation in Synthetic and Genomic Promoters Jason Gertz1, Eric D. Here we present such a model based on the analysis of synthetic promoter libraries in yeast. Thermodynamic models based only on the equilibrium binding of transcription factors to DNA and to each other

Siggia, Eric

208

Synthetic incoherent feedforward circuits show adaptation to the amount of their genetic template  

E-Print Network [OSTI]

Synthetic incoherent feedforward circuits show adaptation to the amount of their genetic template.12.10; accepted 6.6.11 Natural and synthetic biological networks must function reliably in the face of fluctuating expression efficiency and the DNA template amount of the network-coding genes. Gene product levels could

Sontag, Eduardo

209

Constructing High Complexity Synthetic Libraries of Long ORFs Using In Vitro Selection  

E-Print Network [OSTI]

for the design and synthesis of large synthetic DNA libraries coding for protein sequences suitable for useConstructing High Complexity Synthetic Libraries of Long ORFs Using In Vitro Selection Glen Cho selection experiments. Protein libraries are often encoded by chemically synthesized DNA, in which part

Heller, Eric

210

SYNTHESIS 0.1: BETA RELEASE OF A SYNTHETIC WAVEFORMS M. D'amico1  

E-Print Network [OSTI]

SYNTHESIS 0.1: BETA RELEASE OF A SYNTHETIC WAVEFORMS REPOSITORY M. D'amico1 , F. Pacor1 , R. PugliaISmograms (SYNTHESIS 0.1). It is designed to archive and distribute synthetic waveforms computed for earthquake hazard describing each scenario-event. The structure of SYNTHESIS is adopted from the ITACA database (http

Cerveny, Vlastislav

211

Inverse-synthetic-aperture imaging of trees over a ground plane  

SciTech Connect (OSTI)

Recent data collections with the Sandia VHF-UHF synthetic-aperture radar have yielded surprising results; trees appear brighter in the images than expected! In an effort to understand this phenomenon, various small trees have been measured on the Sandia folded compact range with the inverse-synthetic-aperture imaging system. A compilation of these measurements is contained in this report.

Zittel, D.H.; Brock, B.C.; Littlejohn, J.H.; Patitz, W.E.

1995-11-01T23:59:59.000Z

212

Four Postmortem Case Reports with Quantitative Detection of the Synthetic Cannabinoid, 5F-PB-22  

Science Journals Connector (OSTI)

......2 (CB2). The consumption of synthetic cannabinoids...V) Collision energy (eV) 5F-PB-22...5F-PB-22. The average ion transition ratio...pronounced dead in the home of friends during...returned to his home around noon the...highs-seizures after consumption of synthetic cannabinoids......

George Behonick; Kevin G. Shanks; Dennis J. Firchau; Gagan Mathur; Charles F. Lynch; Marcus Nashelsky; David J. Jaskierny; Chady Meroueh

2014-10-01T23:59:59.000Z

213

Optimal Part and Module Selection for Synthetic Gene Circuit Design Automation  

Science Journals Connector (OSTI)

Optimal Part and Module Selection for Synthetic Gene Circuit Design Automation ... A step toward automated synthetic circuit design is the selection of a part set so that the final circuit exhibits the desired behavior. ... Our workflow is the first to automate the prodn. of biol. ...

Linh Huynh; Ilias Tagkopoulos

2014-01-28T23:59:59.000Z

214

Polishing of synthetic electroplating wastewater in microcosm upflow constructed wetlands: Metals removal mechanisms  

E-Print Network [OSTI]

Polishing of synthetic electroplating wastewater in microcosm upflow constructed wetlands: Metals in microcosm upflow constructed wetlands used for polishing of synthetic electroplating wastewater. Four types (2014) 53-42" DOI : 10.1016/j.cej.2013.12.075 #12;Keywords electroplating wastewater, metals, cyanides

Paris-Sud XI, Université de

215

Fe(II) Sorption on a Synthetic Montmorillonite. A Combined Macroscopic and Spectroscopic Study  

E-Print Network [OSTI]

Fe(II) Sorption on a Synthetic Montmorillonite. A Combined Macroscopic and Spectroscopic Study fine structure (EXAFS) and Mossbauer spectroscopy combined with macroscopic sorption experiments were employed to investigate the sorption mechanism of Fe(II) on an iron-free synthetic montmorillonite (Na

Wehrli, Bernhard

216

FSAAWG, ROME 2011 1 Synthetic Voice Forgery in the Forensic Context: a  

E-Print Network [OSTI]

FSAAWG, ROME 2011 1 Synthetic Voice Forgery in the Forensic Context: a short tutorial Guillaume Paristech, dép. TSI 37-39 rue Dareau 75014 PARIS Abstract--Technical voice forgery in the forensic area has, the forensic context is quite different since the human ear might be able to detect a synthetic voice, thus

Paris-Sud XI, Université de

217

Synthetic jets at large Reynolds number and comparison to continuous jets  

SciTech Connect (OSTI)

Experimental measurements and flow visualization of synthetic jets and similar continuous jets are described. The dimensionless stroke length necessary to form a 2-D synthetic jet is between 5 and 10, with wider-nozzle jets consistently requiring a smaller value. Synthetic jets are wider, slower and have more momentum than similar continuous jets. Synthetic jets are generated using four nozzle widths that vary by a factor of four, and the driving frequency is varied over an order of magnitude. The resultant jets are in the range 13.5 < L{sub o}/h < 80.8 and 695 < Re{sub Uo} < 14700. In spite of the large range of stroke lengths, the near-field behavior of the synthetic jets scales with L{sub o}/h.

Smith, B. L. (Barton L.); Swift, G. W. (Gregory W.)

2001-01-01T23:59:59.000Z

218

Fate of Mercury in Synthetic Gypsum Used for Wallboard Production  

SciTech Connect (OSTI)

This report presents and discusses results from Task 5 of the study ''Fate of Mercury in Synthetic Gypsum Used for Wallboard Production,'' performed at a full-scale commercial wallboard plant. Synthetic gypsum produced by wet flue gas desulfurization (FGD) systems on coal-fired power plants is commonly used in the manufacture of wallboard. The FGD process is used to control the sulfur dioxide emissions which would result in acid rain if not controlled. This practice has long benefited the environment by recycling the FGD gypsum byproduct, which is becoming available in increasing quantities, decreasing the need to landfill this material, and increasing the sustainable design of the wallboard product. However, new concerns have arisen as recent mercury control strategies developed for power plants involve the capture of mercury in FGD systems. The objective of this study is to determine whether any mercury is released into the atmosphere when the synthetic gypsum material is used as a feedstock for wallboard production. The project is being co-funded by the U.S. DOE National Energy Technology Laboratory (Cooperative Agreement DE-FC26-04NT42080), USG Corporation, and EPRI. USG Corporation is the prime contractor, and URS Group is a subcontractor. The project scope includes five discrete tasks, each conducted at various USG wallboard plants using synthetic gypsum from different FGD systems. The five tasks were to include (1) a baseline test, then variations representing differing power plant (2) emissions control configurations, (3) treatment of fine gypsum particles, (4) coal types, and (5) FGD reagent types. However, Task 5, which was to evaluate gypsum produced from an alternate FGD reagent, could not be conducted as planned. Instead, Task 5 was conducted at conditions similar to a previous task, Task 3, although with gypsum from an alternate FGD system. In this project, process stacks in the wallboard plant have been sampled using the Ontario Hydro method. The stack locations sampled for each task include a dryer for the wet gypsum as it enters the plant and a gypsum calciner. The stack of the dryer for the wet wallboard product was also tested as part of this task, and was tested as part of Tasks 1 and 4. Also at each site, in-stream process samples were collected and analyzed for mercury concentration before and after each significant step in wallboard production. The Ontario Hydro results, process sample mercury concentration data, and process data were used to construct mercury mass balances across the wallboard plants. Task 5 was conducted at a wallboard plant processing synthetic gypsum from a power plant that fires Eastern bituminous coal. The power plant is equipped with a selective catalytic reduction (SCR) system for NOX emissions control, but the SCR was bypassed during the time period the gypsum tested was produced. The power plant has a single-loop, open spray tower, limestone reagent FGD system, with forced oxidation conducted in a reaction tank integral with the FGD absorber. The FGD system has gypsum fines blow down as part of the dewatering step. Gypsum fines blow down is believed to be an important variable that impacts the amount of mercury in the gypsum byproduct and possibly its stability during the wallboard process. The results of the Task 5 stack testing, as measured by the Ontario Hydro method, detected that an average of 51% of the incoming mercury in the FGD gypsum was emitted during wallboard production. These losses were distributed as 2% or less each across the wet gypsum dryer and product wallboard dryer, and about 50% across the gypsum calciner. Emissions were similar to what Task 3 results showed, on both a percentage and a mass basis, for gypsum produced by a power plant firing bituminous coal and also having gypsum fines blow down as part of the FGD dewatering scheme. As was seen in the Task 1 through 4 results, most of the mercury detected in the stack testing on the wet gypsum dryer and kettle calciner was in the form of elemental mercury. In the wallboard dryer kiln, a more signific

Jessica Marshall Sanderson

2006-06-01T23:59:59.000Z

219

Cerebellar evolution in Darwin's Finches  

E-Print Network [OSTI]

CEREBELLAR EVOLUTION IN DARWIN' S FINCHES A Thesis by ROBERT SHERMAN ST. JULES Submitted to the Graduate College of Texas MM University in partial fulfillment of roe reouiremert for the degree of MASTER OF SCIENCE May 1977 Major Subject...: Zoology CEREBELLAR EVOLUTION IN DARWIN'S FINCHES A Thesis by ROBERT SHERMAN ST. JULES Approved as to style and content by: Chairman of Committee Head of p'artment Member May 1977 ABSTRACT Cerebellar Evolution in Darwin's Finches. (Hay 1977...

St. Jules, Robert Sherman

2012-06-07T23:59:59.000Z

220

Concrete Chemical Evolution  

SciTech Connect (OSTI)

The objectives of this analysis are to discuss and evaluate testing results that were performed for the M&O by the Pennsylvania State University (PSU) to evaluate the potential long-term evolution of organic admixtures in cementitious materials at elevated temperatures. The testing was designed to help provide a basis for a determination by the Performance Assessment group (PA) of the long-term acceptability and longevity of cementitious materials for repository use. The main purpose of the testing was to assess the evolution of gases (especially CO{sub 2}) from hydrated cement paste at elevated temperatures and to determine the impact on alkalinity, i.e., the pH value of cement paste pore solution. This information in turn can be used as scoping information to determine if further tests of this nature are needed to support PA. As part of this discussion and evaluation of the PSU results, an assessment of alkalinity in a ''cementitious repository'' and an evaluation of organic materials are presented.

D.H. Tang

1998-07-31T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Successful Radiotherapy of Tumor in Pretargeted Mice by 188Re-Radiolabeled Phosphorodiamidate Morpholino Oligomer, a Synthetic DNA Analogue  

Science Journals Connector (OSTI)

...188Re-Radiolabeled Phosphorodiamidate Morpholino Oligomer, a Synthetic DNA Analogue Guozheng Liu 1 Requests for reprints: Guozheng...188Re-radiolabeled phosphorodiamidate morpholino oligomer, a synthetic DNA analogue. | Pretargeting has been attracting increasing...

Guozheng Liu; Shuping Dou; George Mardirossian; Jiang He; Surong Zhang; Xinrong Liu; Mary Rusckowski; Donald J. Hnatowich

2006-08-15T23:59:59.000Z

222

Nuclear magnetic resonance studies of drug-nucleic acid interactions at the synthetic DNA level in solution  

Science Journals Connector (OSTI)

Nuclear magnetic resonance studies of drug-nucleic acid interactions at the synthetic DNA level in solution ...

Dinshaw J. Patel

1979-04-01T23:59:59.000Z

223

Detection of human rotavirus by using an alkaline phosphatase-conjugated synthetic DNA probe in comparison with enzyme-linked immunoassay and polyacrylamide gel analysis.  

Science Journals Connector (OSTI)

...alkaline phosphatase-conjugated synthetic DNA probe in comparison with enzyme-linked...alkaline phosphatase-conjugated synthetic DNA probe in comparison with enzyme-linked...Alkaline Phosphatase-Conjugated Synthetic DNA Probe in Comparison with Enzyme-Linked...

D M Olive; S K Sethi

1989-01-01T23:59:59.000Z

224

An Optimized, Synthetic DNA Vaccine Encoding the Toxin A and Toxin B Receptor Binding Domains of Clostridium difficile Induces Protective Antibody Responses In Vivo  

Science Journals Connector (OSTI)

...Immunity and Vaccines An Optimized, Synthetic DNA Vaccine Encoding the Toxin A and...these advantages make newer, synthetic DNA-based immunizations a desirable...our work demonstrates that a synthetic DNA vaccine encoding the toxin RBDs...

Scott M. Baliban; Amanda Michael; Berje Shammassian; Shikata Mudakha; Amir S. Khan; Simon Cocklin; Isaac Zentner; Brian P. Latimer; Laurent Bouillaut; Meredith Hunter; Preston Marx; Niranjan Y. Sardesai; Seth L. Welles; Jeffrey M. Jacobson; David B. Weiner; Michele A. Kutzler

2014-07-14T23:59:59.000Z

225

Detection of rotavirus by hybridization with a nonradioactive synthetic DNA probe and comparison with commercial enzyme immunoassays and silver-stained polyacrylamide gels.  

Science Journals Connector (OSTI)

...hybridization with a nonradioactive synthetic DNA probe and comparison with commercial...hybridization with a nonradioactive synthetic DNA probe and comparison with commercial...Hybridization with a Nonradioactive Synthetic DNA Probe and Comparison with Commercial...

M Arens; E M Swierkosz

1989-06-01T23:59:59.000Z

226

Lynx: A High-Resolution Synthetic Aperture Radar  

SciTech Connect (OSTI)

Lynx is a high resolution, synthetic aperture radar (SAR) that has been designed and built by Sandia National Laboratories in collaboration with General Atomics (GA). Although Lynx may be operated on a wide variety of manned and unmanned platforms, it is primarily intended to be fielded on unmanned aerial vehicles. In particular, it may be operated on the Predator, I-GNAT, or Prowler II platforms manufactured by GA Aeronautical Systems, Inc. The Lynx production weight is less than 120 lb. and has a slant range of 30 km (in 4 mm/hr rain). It has operator selectable resolution and is capable of 0.1 m resolution in spotlight mode and 0.3 m resolution in stripmap mode. In ground moving target indicator mode, the minimum detectable velocity is 6 knots with a minimum target cross-section of 10 dBsm. In coherent change detection mode, Lynx makes registered, complex image comparisons either of 0.1 m resolution (minimum) spotlight images or of 0.3 m resolution (minimum) strip images. The Lynx user interface features a view manager that allows it to pan and zoom like a video camera. Lynx was developed under corporate finding from GA and will be manufactured by GA for both military and commercial applications. The Lynx system architecture will be presented and some of its unique features will be described. Imagery at the finest resolutions in both spotlight and strip modes have been obtained and will also be presented.

Doerry, A.W.; Hensley, W.H.; Pace, F.; Stence, J.; Tsunoda, S.I.; Walker, B.C.; Woodring, M.

1999-03-08T23:59:59.000Z

227

Cyclic testing of continuously wetted synthetic fiber ropes  

SciTech Connect (OSTI)

A laboratory study of the cyclic loading endurance properties of continuously wetted synthetic, or manmade, fibre ropes has been conducted on ropes of various materials and forms of construction. The materials investigated were polyamides, polyester and polypropylene. Forms of construction studied were braid-on-braid, eight strand (square) and parallel lay. Rope sizes researched were 100 kN (10 tonf) nominal breaking force and up to 1.0 MN (100 tonf) nominal breaking force. All specimens were single leg. The test results indicate the superior bollard abrasion resistance and interstrand friction wear resistance of polyester and polypropylene over the polyamides. Trends, where observed, are also reported upon for the cyclic endurance performance of the forms of construction investigated. The improvements (or otherwise) in endurance effected by sheathing, coating and thimble protection of the eyes are also discussed. The results and performance trends observed on this test programme will be of interest to designers and users of mooring or tethering systems which operate continuously wet.

Crawford, H.; McTernan, L.M.

1983-05-01T23:59:59.000Z

228

Observation of Dirac Monopoles in a Synthetic Magnetic Field  

E-Print Network [OSTI]

Magnetic monopoles --- particles that behave as isolated north or south magnetic poles --- have been the subject of speculation since the first detailed observations of magnetism several hundred years ago. Numerous theoretical investigations and hitherto unsuccessful experimental searches have followed Dirac's 1931 development of a theory of monopoles consistent with both quantum mechanics and the gauge invariance of the electromagnetic field. The existence of even a single Dirac magnetic monopole would have far-reaching physical consequences, most famously explaining the quantization of electric charge. Although analogues of magnetic monopoles have been found in exotic spin-ices and other systems, there has been no direct experimental observation of Dirac monopoles within a medium described by a quantum field, such as superfluid helium-3. Here we demonstrate the controlled creation of Dirac monopoles in the synthetic magnetic field produced by a spinor Bose-Einstein condensate. Monopoles are identified, in both experiments and matching numerical simulations, at the termini of vortex lines within the condensate. By directly imaging such a vortex line, the presence of a monopole may be discerned from the experimental data alone. These real-space images provide conclusive and long-awaited experimental evidence of the existence of Dirac monopoles. Our result provides an unprecedented opportunity to observe and manipulate these quantum-mechanical entities in a controlled environment.

M. W. Ray; E. Ruokokoski; S. Kandel; M. Möttönen; D. S. Hall

2014-08-13T23:59:59.000Z

229

Production of synthetic gasoline and diesel fuel from nonpetroleum resources  

SciTech Connect (OSTI)

In late 1985, the New Zealand Gas-to-Gasoline Complex was successfully streamed producing high octane gasoline from natural gas. The heart of this complex is the Mobil fixed-bed Methanol-to-Gasoline (MTG) section which represents one of several newly developed technologies for production of synthetic gasoline and diesel fuels. All of these technologies are based on production of methanol by conventional technology, followed by conversion of the methanol to transportation fuel. The fixed-bed (MTG) process has been developed and commercialized. The fluid-bed version of the MTG process, which is now also available for commercial license, has a higher thermal efficiency and possesses substantial yield and octane number advantages over the fixed-bed. Successful scale-up was completed in 1984 in a 100 BPD semi-works plant in Wesseling, Federal Republic of Germany. The project was funded jointly by the U.S. and German governments and by the industrial participants: Mobil, Union Rheinsche Braunkohlen Kraftstoff, AG; and Uhde, GmbH. This fluid-bed MTG project was extended recently to demonstrate a related fluid-bed process for selective conversion of methanol to olefins (MTO). The MTO process can be combined with Mobil's commercially available olefins conversion process (Mobil-Olefins-to-Gasoline-and-Distillate, MOGD) for coproduction of high quality gasoline and distillate via methanol. This MTO process was also successfully demonstrated at the Wesseling semiworks with this project being completed in late 1985.

Tabak, S.A.; Avidan, A.A.; Krambeck, F.J.

1986-04-01T23:59:59.000Z

230

The emerging technology of synthetic aperture focusing for ultrasonic testing  

SciTech Connect (OSTI)

The capabilities of synthetic aperture focusing techniques for ultrasonic testing (SAFT-UT) as a nondestructure testing technique are presented. SAFT-UT is a digital ultrasonic imaging method, which can be adapted to many different materials, specimen geometries, and wave propagation modes. The process allows each point within the inspected volume to be focused upon by mathematically simulating the action of a lens, specifically formed for imaging that point in the volume. All points are therefore imaged at the maximum available resolution. The PNL effort in SAFT-UT is a continuation of a program started earlier by the NRC at the University of Michigan. The objectives of the present program are: (1) to engineer and evaluate a real-time flaw detection and imaging system based on SAFT-UT for inservice inspection of all required LWR components, (2) to establish calibration and field test procedures, (3) to demonstrate and validate the system through field reactor inspections, and (4) to gain ASME Code acceptance of the real-time SAFT-UT technique. The following aspects of SAFT-UT are presented in this paper: (1) brief overview of SAFT imaging theory, (2) results demonstrating achievable lateral resolution, and (3) presentation of shear wave SAFT-UT images.

Busse, L.J.; Collins, H.D.; Doctor, S.R.

1984-06-01T23:59:59.000Z

231

Natural and synthetic DNA elements with the CArG motif differ in expression and protein-binding properties.  

Science Journals Connector (OSTI)

...research-article Research Article Natural and synthetic DNA elements with the CArG motif differ...cognate promoters. Natural and synthetic DNA elements with the CArG motif differ...Vol. 11, No. 12 Natural and Synthetic DNA Elements with the CArG Motif Differ...

I M Santoro; K Walsh

1991-12-01T23:59:59.000Z

232

Ultrafast Spectroscopic Study on Caffeine Mediated Dissociation of Mutagenic Ethidium from Synthetic DNA and Various Cell Nuclei  

Science Journals Connector (OSTI)

Ultrafast Spectroscopic Study on Caffeine Mediated Dissociation of Mutagenic Ethidium from Synthetic DNA and Various Cell Nuclei ... (10) The purified (reverse-phase cartridge) synthetic DNA oligonucleotides of 12 bases (dodecamer) with sequence CGCGAATTCGCG were obtained from TriLink. ... In Figure 1a,b steady-state and time-resolved studies on the Et intercalated to the synthetic DNA are presented. ...

Soma Banerjee; Debajit Bhowmik; Pramod Kumar Verma; Rajib Kumar Mitra; Anirban Sidhhanta; Gautam Basu; Samir Kumar Pal

2011-10-27T23:59:59.000Z

233

Face-to-Face and Edge-to-Face ??? Interactions in a Synthetic DNA Hairpin with a Stilbenediether Linker  

Science Journals Connector (OSTI)

Face-to-Face and Edge-to-Face ??? Interactions in a Synthetic DNA Hairpin with a Stilbenediether Linker ... This property allowed investigation of hole injection and migration processes in the synthetic DNA hairpins. ... Structure and Photoinduced Electron Transfer in Exceptionally Stable Synthetic DNA Hairpins with Stilbenediether Linkers ...

Martin Egli; Valentina Tereshko; Garib N. Mushudov; Ruslan Sanishvili; Xiaoyang Liu; Frederick D. Lewis

2003-08-16T23:59:59.000Z

234

1008 ieee transactions on ultrasonics, ferroelectrics, and frequency control, vol. 53, no. 5, may 2006 An Iterative Synthetic Aperture Imaging  

E-Print Network [OSTI]

as synthetic aperture focusing technique (SAFT) [1] has been inspired by synthetic aperture sonar (SAS) [2] and synthetic aper- ture radar (SAR) [3]. SAFT has been applied both in med- ical and nondestructive material that this technique is superior to many other common SAI algo- rithms, such as conventional SAFT and phased-array tech

235

Driving Force Dependence of Electron Transfer Dynamics in Synthetic DNA Hairpins  

Science Journals Connector (OSTI)

Driving Force Dependence of Electron Transfer Dynamics in Synthetic DNA Hairpins ... The driving force dependence of photoinduced electron-transfer dynamics in duplex DNA has been investigated for 16 synthetic DNA hairpins in which an acceptor chromophore serves as a linker connecting two complementary oligonucleotide arms containing a single donor nucleobase located either adjacent to the linker or separated from the linker by two unreactive base pairs. ... for a family of synthetic DNA hairpins in which a stilbene dicarboxamide forms a bridge connecting two oligonucleotide arms. ...

Frederick D. Lewis; Rajdeep S. Kalgutkar; Yansheng Wu; Xiaoyang Liu; Jianqin Liu; Ryan T. Hayes; Scott E. Miller; Michael R. Wasielewski

2000-11-23T23:59:59.000Z

236

Synthetic Nano-Low Density Lipoprotein as Targeted Drug DeliveryVehicle for Glioblastoma Multiforme  

SciTech Connect (OSTI)

This paper discribes a synthetic low density lipoprotein(LDL) made by complexing a 29 amino acid that consists of a lipid bindingdomain and the LDL receptor binding domain with a lipid microemulsion.The nano-LDL particles were intermdiate in size between LDL and HDL andbound to LDL receptors on GBM brain tumor cells. Synthetic nano-LDLuptake by GBM cells was LDL receptor specific and dependent on cellreceptor number. It is suggested that these synthetic particles can serveas a delivery vehicle for hydophobic anti-tumor drugs by targeting theLDL receptor.

Nikanjam, Mina; Blakely, Eleanor A.; Bjornstad, Kathleen A.; Shu,Xiao; Budinger, Thomas F.; Forte, Trudy M.

2006-06-14T23:59:59.000Z

237

Planet Formation: Planet Formation: Evolution of The Solar NebulaEvolution of The Solar Nebula  

E-Print Network [OSTI]

Planet Formation: Planet Formation: Evolution of The Solar NebulaEvolution of The Solar Nebula #12;Evolution of the Solar NebulaEvolution of the Solar Nebula 1.1. Nebula collapses into a disk 2000 KTemperatures near the Sun reach 2000 K #12;Evolution of the Solar NebulaEvolution of the Solar

Herrick, Robert R.

238

Effect of a synthetic leu-enkephalin analog on the intensity of DNA synthesis in insects  

Science Journals Connector (OSTI)

The hexapeptide dalargin (a synthetic analog of leu-enkephalin) injected in the...Galleria mellonella) and of mealworm (Tenebrio molitor...) causes a dose-dependent increase in the DNA content and an increase in ...

T. I. Lapteva; N. O. Min’kova…

1997-04-01T23:59:59.000Z

239

A novel synthetic DNA minor groove binder, MS-247: antitumor activity and cytotoxic mechanism  

Science Journals Connector (OSTI)

Purpose: MS-247 is a novel synthetic compound possessing a DNA-binding moiety and a DNA-alkylating residue, chlorambucil. In this study, ... murine tumor cell lines and its effects on DNA molecul...

Y. Matsuba; H. Edatsugi; I. Mita; A. Matsunaga…

2000-06-01T23:59:59.000Z

240

DNA synthetic phase duration of mouse ileal epithelium in acute renal failure  

Science Journals Connector (OSTI)

The effect of progressive acute renal failure on the DNA synthetic phase duration of ileal epithelium was assessed...3-thymidine approximately 18 hours after urinary outflow obstruction in mice. Controls were sub...

Francis T. McDermott; Melinda K. Dalton

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Nuclear DNA content in allopolyploid species and synthetic hybrids in the grass genus Paspalum  

Science Journals Connector (OSTI)

DNA content was estimated by flow cytometry in...Paspalum and five synthetic hybrids. Results were compared to known genome constitutions and phylogenetic relationships. DNA 2C-values ranged from 1.24 pg...P. jue...

M. Vaio; C. Mazzella; V. Porro; P. Speranza…

2007-05-01T23:59:59.000Z

242

Synthetic Lethality”: Molecular Co-targeting to Restore the DNA Repair Mechanisms in Prostate Cancer Cells  

Science Journals Connector (OSTI)

To this end, PARP inhibitors are the well-known class of drugs that have recently been proposed to reach synthetic lethality in DNA repair-defective, radio-resistant prostate tumors.

Gennaro Ilardi; Stefania Staibano

2013-01-01T23:59:59.000Z

243

Depression of Protein Synthetic Capacity Due to Cloned-Gene Expression in E. coli  

E-Print Network [OSTI]

Depression of Protein Synthetic Capacity Due to Cloned-Gene Expression in E. coli Thomas K. Wood using pulse-labelling and RNA-DNA hybridiza- tions. Specifically, the steady-state level, synthesis rate

Wood, Thomas K.

244

Stabilization of DNA Triple Helices Using Conjugates of Oligonucleotides and Synthetic Ligands  

Science Journals Connector (OSTI)

The possibility is discussed of stabilizing a DNA triple helix by covalent conjugation to the ... triplex-specific intercalators. As a target, a synthetic 29-mer duplex containing a natural polypurine...

A. N. Sinyakov; V. A. Ryabinin; G. N. Grimm; A. S. Boutorine

2001-03-01T23:59:59.000Z

245

Consequences of Substituting 2NH2A for a in Synthetic DNA’S  

Science Journals Connector (OSTI)

Chemical and spectroscopic consequences of replacing A with 2NH2A have been examined in a variety of synthetic DNA’s. This substitution, which permits formation...m elevation, however, is much smaller in the deox...

Frank B. Howard; H. Todd Miles

1983-01-01T23:59:59.000Z

246

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

247

Thermal stability of synthetic aurichalcite implications for making mixed metal oxides for use as catalysts  

Science Journals Connector (OSTI)

TG combined with MS has been used to study the thermal decomposition of a synthetic aurichalcite with varying copper-zinc ratios from 0....3 and CuCO3.... A higher temperature decomposition at around 805°C, based...

R. L. Frost; A. J. Locke; M. C. Hales…

2008-10-01T23:59:59.000Z

248

Structural Analysis of Human and Bovine Bone for Development of Synthetic Materials  

E-Print Network [OSTI]

bones, as well as mimicking nature by developing a synthetic material to repair bones. Experimentally, bovine bone, tumor-free human bone, and cancerous human bone were studied via the small scale mechanical loading test. Failure analysis was conducted...

Jang, Eunhwa

2012-10-19T23:59:59.000Z

249

BTI Undergraduate Fellows Biotechnology, biofuels, synthetic ecology summer research fellowships for undergraduates at  

E-Print Network [OSTI]

BTI Undergraduate Fellows Biotechnology, biofuels, synthetic ecology summer research fellowships for undergraduates at the University of Minnesota's Biotechnology Institute. Summer research fellowships available of a faculty mentor in the Biotechnology Institute. The fellowship includes special activities for professional

Weiblen, George D

250

BTI undergraduate fellows Biotechnology, biofuels, synthetic ecology summer research fellowships for  

E-Print Network [OSTI]

BTI undergraduate fellows Biotechnology, biofuels, synthetic ecology summer research fellowships for undergraduates at the University of Minnesota's Biotechnology Institute. Summer research fellowships available of a faculty mentor in the Biotechnology Institute. The fellowship includes special activities for professional

Amin, S. Massoud

251

A Path to the Formulation of New Generations of Synthetic Jet Fuel Derived from Natural Gas  

E-Print Network [OSTI]

with industry and academia to study synthetic jet fuels derived from natural gas. These studies are being implemented at its Fuel Characterization Lab where the most advanced testing equipment is used and strict Quality Management and safety systems are followed...

Al-Nuaimi, Ibrahim Awni Omar Hassan

2013-05-20T23:59:59.000Z

252

Experimental plant for production of synthetic triplex-polymerized ethylene-propylene rubber  

Science Journals Connector (OSTI)

An experimental plant with an output of 500 kg/day, which is intended for the formulation of process production regimes, and the running times of experimental ... various grades of synthetic triple-polymerized et...

V. I. Peretyatko; V. P. Pogrebtsov; V. A. Shepelin

2010-05-01T23:59:59.000Z

253

Volumetric analysis of fish swimming hydrodynamics using synthetic aperture particle image velocimetry  

E-Print Network [OSTI]

Abstract This thesis details the implementation of a three-dimensional PIV system to study the hydrodynamics of freely swimming Giant Danio (Danio aequipinnatus). Volumetric particle fields are reconstructed using synthetic ...

Mendelson, Leah Rose

2013-01-01T23:59:59.000Z

254

Ribozyme-based "insulator parts" buffer synthetic circuits from genetic context  

E-Print Network [OSTI]

Synthetic genetic programs are built from circuits that integrate sensors and implement temporal control of gene expression1–4. Transcriptional circuits are layered by using promoters to carry the signal between circuits. ...

Lou, Chunbo

255

A fast, robust and tunable synthetic gene oscillator Jesse Stricker1  

E-Print Network [OSTI]

LETTERS A fast, robust and tunable synthetic gene oscillator Jesse Stricker1 *, Scott Cookson1 *, Matthew R. Bennett1,2 *, William H. Mather1 , Lev S. Tsimring2 & Jeff Hasty1,2 One defining goal

Hasty, Jeff

256

Development of a high-resolution gamma-ray imaging system with synthetic collimation.  

E-Print Network [OSTI]

??This work outlines the development of a multi-pinhole single-photon emission computed tomography (SPECT) system designed to produce a synthetic-collimator image of a small field of… (more)

Havelin, Ronan

2013-01-01T23:59:59.000Z

257

Polishing of synthetic electroplating wastewater in microcosm upflow constructed wetlands: Effect of operating conditions  

E-Print Network [OSTI]

Polishing of synthetic electroplating wastewater in microcosm upflow constructed wetlands: Effect of polishing electroplating wastewater in subsurface vertical flow constructed wetland. Electroplating wastewater treatment or polishing in constructed wetlands (CWs) was studied to a very limited degree. Four

Paris-Sud XI, Université de

258

High-resolution seismology and comparison of synthetic seismograms for the Powderhorn field  

E-Print Network [OSTI]

. This method requires one more step than second method but the result is much better. Synthetic seismograms were generated by two methods. one used the reflection-coefficients model and the other used the impulse-response model (including multiples...

Lee, Kyoung-Jin

2012-06-07T23:59:59.000Z

259

Transport synthetic acceleration methods for one-dimensional deterministic transport problems  

E-Print Network [OSTI]

We construct and analyze three transport synthetic acceleration schemes. Our goal is the development of a rapidly convergent acceleration scheme that is robust and computationally efficient even for thick, diffusive problems. Additionally, we hope...

Hawkins, William Daryl

2012-06-07T23:59:59.000Z

260

High-field remanence properties of synthetic and natural submicrometre haematites and goethites: significance  

E-Print Network [OSTI]

High-field remanence properties of synthetic and natural submicrometre haematites and goethites September 2004 Editor: V. Courtillot Abstract Haematite and goethite are significant magnetic components both of marine and terrestrial sediments. Variable magnetic behaviour in haematite and goethite has

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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 Method for Fast, High-Precision Characterization of Synthetic Biology Devices  

E-Print Network [OSTI]

Engineering biological systems with predictable behavior is a foundational goal of synthetic biology. To accomplish this, it is important to accurately characterize the behavior of biological devices. Prior characterization ...

Beal, Jacob

2012-04-07T23:59:59.000Z

262

Porphyrin–quinone compounds as synthetic models of the reaction centre  

Science Journals Connector (OSTI)

Data on the synthesis, steric structure, and photochemical properties of porphyrin–quinone compounds as synthetic models of the reaction centre in photosynthesis are examined and described systematically. The bibliography includes 113 references.

V V Borovkov; Rima P Evstigneeva; L N Strekova; E I Filippovich

1989-01-01T23:59:59.000Z

263

Modeling Solar Energy Technology Evolution breakout session ...  

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

Modeling Solar Energy Technology Evolution breakout session Modeling Solar Energy Technology Evolution breakout session This presentation summarizes the information given on the...

264

Procedure for matching synfuel users with potential suppliers. Appendix B. Proposed and ongoing synthetic fuel production projects  

SciTech Connect (OSTI)

To assist the Department of Energy, Office of Fuels Conversion (OFC), in implementing the synthetic fuel exemption under the Powerplant and Industrial Fuel Use Act (FUA) of 1978, Resource Consulting Group, Inc. (RCG), has developed a procedure for matching prospective users and producers of synthetic fuel. The matching procedure, which involves a hierarchical screening process, is designed to assist OFC in: locating a supplier for a firm that wishes to obtain a synthetic fuel exemption; determining whether the fuel supplier proposed by a petitioner is technically and economically capable of meeting the petitioner's needs; and assisting the Synthetic Fuels Corporation or a synthetic fuel supplier in evaluating potential markets for synthetic fuel production. A data base is provided in this appendix on proposed and ongoing synthetic fuel production projects to be used in applying the screening procedure. The data base encompasses a total of 212 projects in the seven production technologies.

None

1981-08-07T23:59:59.000Z

265

Process for gasification using a synthetic CO.sub.2 acceptor  

DOE Patents [OSTI]

A gasification process is disclosed using a synthetic CO.sub.2 acceptor consisting essentially of at least one compound selected from the group consisting of calcium oxide and calcium carbonate supported in a refractory carrier matrix, the carrier having the general formula Ca.sub.5 (SiO.sub.4).sub.2 CO.sub.3. A method for producing the synthetic CO.sub.2 acceptor is also disclosed.

Lancet, Michael S. (Pittsburgh, PA); Curran, George P. (Pittsburgh, PA)

1980-01-01T23:59:59.000Z

266

Crystallization of Synthetic Coal?Petcoke Slag Mixtures Simulating Those Encountered in Entrained Bed Slagging Gasifiers  

Science Journals Connector (OSTI)

Crystallization of Synthetic Coal?Petcoke Slag Mixtures Simulating Those Encountered in Entrained Bed Slagging Gasifiers† ... Commercial entrained bed slagging gasifiers use a carbon feedstock of coal, petcoke, or combinations of them to produce CO and H2. ... A hot-stage confocal scanning laser microscope (CSLM) was used to analyze the kinetic behavior of slag crystallization for a range of synthetic coal?petcoke mixtures. ...

Jinichiro Nakano; Seetharaman Sridhar; Tyler Moss; James Bennett; Kyei-Sing Kwong

2009-04-07T23:59:59.000Z

267

Estimation of heterosis and heterosis retention in the development of a synthetic breed of goat  

E-Print Network [OSTI]

ESTIMATION OF HETEROSIS AND HETEROSIS RETENTION IN THE DEVELOPMENT OF A SYNTHETIC BREED OF GOAT A Thesis by MATTHEW BLAIN JONES Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1994 Major Subject Animal Breeding ESTIMATION OF HETEROSIS AND HETEROSIS RETENTION IN THE DEVELOPMENT OF A SYNTHETIC BREED OF GOAT A Thesis by MATTHEW BLAIN JONES Submitted to Texas A&M University in partial...

Jones, Matthew Blain

2012-06-07T23:59:59.000Z

268

Interactions of Jet Fuels with Nitrile O-Rings: Petroleum-Derived versus Synthetic Fuels  

SciTech Connect (OSTI)

A transition from petroleum-derived jet fuels to blends with Fischer-Tropsch (F-T) fuels, and ultimately fully synthetic hydro-isomerized F-T fuels has raised concern about the fate of plasticizers in nitrile-butadiene rubber o-rings that are contacted by the fuels as this transition occurs. The partitioning of plasticizers and fuel molecules between nitrile o-rings and petroleum-derived, synthetic, and additized-synthetic jet fuels has been measured. Thermal desorption of o-rings soaked in the various jet fuels followed by gas chromatographic analysis with a mass spectrometric detector showed many of the plasticizer and stabilizer compounds were removed from the o-rings regardless of the contact fuel. Fuel molecules were observed to migrate into the o-rings for the petroleum-derived fuel as did both the fuel and additive for a synthetic F-T jet fuel additized with benzyl alcohol, but less for the unadditized synthetic fuel. The specific compounds or classes of compounds involved in the partitioning were identified and a semiquantitative comparison of relative partitioning of the compounds of interest was made. The results provide another step forward in improving the confidence level of using additized, fuIly synthetic jet fuel in the place of petroleum-derived fueL

Gormley, R.J.; Link, D.D.; Baltrus, J.P.; Zandhuis, P.H.

2008-01-01T23:59:59.000Z

269

Interactions of Jet Fuels with Nitrile O-Rings: Petroleum-Derived versus Synthetic Fuels  

SciTech Connect (OSTI)

A transition from petroleum-derived jet fuels to blends with Fischer-Tropsch (F-T) fuels, and ultimately fully synthetic hydro-isomerized F-T fuels has raised concern about the fate of plasticizers in nitrile-butadiene rubber a-rings that are contacted by the fuels as this transition occurs. The partitioning of plasticizers and fuel molecules between nitrile a-rings and petroleum-derived, synthetic, and additized-synthetic jet fuels has been measured. Thermal desorption of o-rings soaked in the various jet fuels followed by gas chromatographic analysis with a mass spectrometric detector showed many of the plasticizer and stabilizer compounds were removed from the o-rings regardless of the contact fuel. Fuel molecules were observed to migrate into the o-rings for the petroleum-derived fuel as did both the fuel and additive for a synthetic F-T jet fuel additized with benzyl alcohol, but less for the unadditized synthetic fuel. The specific compounds or classes of compounds involved in the partitioning were identified and a semiquantitative comparison of relative partitioning of the compounds of interest was made. The results provide another step forward in improving the confidence level of using additized, fully synthetic jet fuel in the place of petroleum-derived fuel.

Gormley, R.J.; Link, D.D.; Baltrus, J.P.; Zandhuis, P.H.

2009-01-01T23:59:59.000Z

270

Evolution Securities Ltd formerly Evolution Beeson Gregory | Open Energy  

Open Energy Info (EERE)

Securities Ltd formerly Evolution Beeson Gregory Securities Ltd formerly Evolution Beeson Gregory Jump to: navigation, search Name Evolution Securities Ltd (formerly Evolution Beeson Gregory) Place London, United Kingdom Zip EC2V 7AN Product Evolution Securities is the investment banking business of Evolution Group plc providing equity research, institutional sales and trading and corporate finance advice. Coordinates 51.506325°, -0.127144° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.506325,"lon":-0.127144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

271

Combustion behavior of a spark ignition engine fueled with synthetic gases derived from biogas  

Science Journals Connector (OSTI)

Abstract Combustion results obtained from a spark ignition engine fueled with two synthetic gases obtained from catalytic decomposition of biogas are presented in this paper. These results are compared with those obtained when the engine was fueled with gasoline, methane and with the biogas from which synthetic gases are extracted. Experimental tests were performed under a wide range of speeds and at three equivalence ratios. Results showed that fractions of hydrogen in synthetic gases increased maximum pressures inside cylinder. Moreover, peak pressures were detected closer to top dead center than methane and biogas. Despite the fraction of diluents in the composition of synthetic gases, high speeds and lean conditions resulted in higher indicated efficiencies than those obtained with gasoline. Moreover, combustion speed and heat release rate were strongly influenced by the proportion of diluents and hydrogen in gaseous blends. CO and CO2 content in the composition of synthetic gases contributed to increase the exhaust concentrations of these pollutants compared with the other fuels, while HC decreased because of the small fraction of methane which remained unburned. Although \\{NOx\\} emissions were mitigated by diluents, like CO2 and air excess, high hydrogen fraction in composition of syngas involved elevated \\{NOx\\} emissions due to the increase in flame temperature that hydrogen produces.

J. Arroyo; F. Moreno; M. Muñoz; C. Monné; N. Bernal

2014-01-01T23:59:59.000Z

272

I. ISOLATION AND CHARACTERIZATION OF BIOACTIVE COMPOUNDS FROM SURINAME AND MADAGASCAR FLORA. II. A SYNTHETIC APPROACH TO LUCILACTAENE.  

E-Print Network [OSTI]

??ISOLATION AND CHARACTERIZATION OF BIOACTIVE COMPOUNDS FROM SURINAME AND MADAGASCAR FLORA AND A SYNTHETIC APPROACH TO LUCILACTAENE ABSTRACT Eba Adou As part of an International… (more)

Adou, Eba

2006-01-01T23:59:59.000Z

273

Vehicle Technologies Office Merit Review 2014: Synthetic Solutions for Correcting Voltage Fade in LMR-NMC Cathodes  

Broader source: Energy.gov [DOE]

Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about synthetic...

274

A bio-synthetic interface for discovery of viral entry mechanisms.  

SciTech Connect (OSTI)

Understanding and defending against pathogenic viruses is an important public health and biodefense challenge. The focus of our LDRD project has been to uncover the mechanisms enveloped viruses use to identify and invade host cells. We have constructed interfaces between viral particles and synthetic lipid bilayers. This approach provides a minimal setting for investigating the initial events of host-virus interaction - (i) recognition of, and (ii) entry into the host via membrane fusion. This understanding could enable rational design of therapeutics that block viral entry as well as future construction of synthetic, non-proliferating sensors that detect live virus in the environment. We have observed fusion between synthetic lipid vesicles and Vesicular Stomatitis virus particles, and we have observed interactions between Nipah virus-like particles and supported lipid bilayers and giant unilamellar vesicles.

Gutzler, Mike; Maar, Dianna; Negrete, Oscar; Hayden, Carl C.; Sasaki, Darryl Yoshio; Stachowiak, Jeanne C.; Wang, Julia

2010-09-01T23:59:59.000Z

275

Comparison of Nonlinear Model Results Using Modified Recorded and Synthetic Ground Motions  

SciTech Connect (OSTI)

A study has been performed that compares results of nonlinear model runs using two sets of earthquake ground motion time histories that have been modified to fit the same design response spectra. The time histories include applicable modified recorded earthquake ground motion time histories and synthetic ground motion time histories. The modified recorded earthquake ground motion time histories are modified from time history records that are selected based on consistent magnitude and distance. The synthetic ground motion time histories are generated using appropriate Fourier amplitude spectrums, Arias intensity, and drift correction. All of the time history modification is performed using the same algorithm to fit the design response spectra. The study provides data to demonstrate that properly managed synthetic ground motion time histories are reasonable for use in nonlinear seismic analysis.

Robert E. Spears; J. Kevin Wilkins

2011-11-01T23:59:59.000Z

276

Analysis of synthetic motor oils for additive elements by ICP-AES  

SciTech Connect (OSTI)

Standard motor oils are made by blending paraffinic or naphthenic mineral oil base stocks with additive packages containing anti-wear agents, dispersants, corrosion inhibitors, and viscosity index improvers. The blender can monitor the correct addition of the additives by determining the additive elements in samples dissolved in a solvent by ICP-AES. Internal standardization is required to control sample transport interferences due to differences in viscosity between samples and standards. Synthetic motor oils, made with poly-alpha-olefins and trimethylol propane esters, instead of mineral oils, pose an additional challenge since these compounds affect the plasma as well as having sample transport interference considerations. The synthetic lubricant base stocks add significant oxygen to the sample matrix, which makes the samples behave differently than standards prepared in mineral oil. Determination of additive elements in synthetic motor oils will be discussed.

Williams, M.C.; Salmon, S.G. [Texaco Inc., Beacon, NY (United States)

1995-12-31T23:59:59.000Z

277

Organism, machine, artifact: The conceptual and normative challenges of synthetic biology  

Science Journals Connector (OSTI)

Abstract Synthetic biology is an emerging discipline that aims to apply rational engineering principles in the design and creation of organisms that are exquisitely tailored to human ends. The creation of artificial life raises conceptual, methodological and normative challenges that are ripe for philosophical investigation. This special issue examines the defining concepts and methods of synthetic biology, details the contours of the organism–artifact distinction, situates the products of synthetic biology vis-à-vis this conceptual typology and against historical human manipulation of the living world, and explores the normative implications of these conclusions. In addressing the challenges posed by emerging biotechnologies, new light can be thrown on old problems in the philosophy of biology, such as the nature of the organism, the structure of biological teleology, the utility of engineering metaphors and methods in biological science, and humankind’s relationship to nature.

Sune Holm; Russell Powell

2013-01-01T23:59:59.000Z

278

Universality and Evolution of TMDs  

E-Print Network [OSTI]

In this talk, we summarize how QCD evolution can be exploited to improve the treatment of transverse momentum dependent (TMD) parton distribution and fragmentation functions. The methods allow existing non-perturbative fits to be turned into fully evolved TMDs that are consistent with a complete TMD-factorization formalism over the full range of kT. We argue that evolution is essential to the predictive power of calculations that utilize TMD parton distribution and fragmentation functions, especially TMD observables that are sensitive to transverse spin.

S. Mert Aybat; Ted C. Rogers

2011-10-27T23:59:59.000Z

279

Fluorescence of synthetic DNA's at room temperature and neutral pH  

Science Journals Connector (OSTI)

The fluorescence of two synthetic DNA's, polyd(m5C) and poly[d(I-m5C)] is demonstrated at room temperature and neutral pH. Polyd(m5C) at pH 8.0 exhibits fluorescence qualitatively the same as the mononucleotide: the quantum yield is independent of excitation energy; the emission maximum is at 2.92 ??1 (355 nm). Poly[d(I-m5C)] exhibits fluorescence resembling that of the 5-methyldeoxycytidine component with an additional feature that is probably due to weak deoxyinosine fluorescence. Neither of these synthetic DNA's exhibits spectra suggestive of exciplex formation.

James E. Gill

1971-01-01T23:59:59.000Z

280

Synthetic peptides that cause F-actin bundling and block actin depolymerization  

DOE Patents [OSTI]

Synthetic peptides derived from sucrose synthase, and having homology to actin and actin-related proteins, sharing a common motif, useful for causing acting bundling and preventing actin depolymerization. Peptides exhibiting the common motif are described, as well as specific synthetic peptides which caused bundled actin and inhibit actin depolymerization. These peptides can be useful for treating a subject suffering from a disease characterized by cells having neoplastic growth, for anti-cancer therapeutics, delivered to subjects solely, or concomitantly or sequentially with other known cancer therapeutics. These peptides can also be used for stabilizing microfilaments in living cells and inhibiting growth of cells.

Sederoff, Heike (Raleigh, NC); Huber, Steven C (Savoy, IL); Larabell, Carolyn A (Berkeley, CA)

2011-10-18T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

The German plan for synthetic fuel self-sufficiency, 1933-1942  

E-Print Network [OSTI]

Major Subject: History THE GERMAN PLAN FOR SYNTHETIC FUEL SELF-SUFFICIENCY, 1933-1942 A Thesis by TERRY HUNT TOOLEY Approved as to style and content by: Chairman of Committee Head of Depart ent ~kaM PL~~~~ Member Member Member -. December... 1978 111 ABSTRACT The German Plan for Synthet1c Fuel Self-SuFficiency, 1933-1942 (December 1978) Terry Hunt Tooley, B. A. , Texas ARM Dn1versity Cha1rman of Advisory Committee: Or. Arnold P. Krammer By ach1eving a cooperation between industry...

Tooley, Terry Hunt

2012-06-07T23:59:59.000Z

282

VIRAL EVOLUTION Genomic surveillance elucidates  

E-Print Network [OSTI]

VIRAL EVOLUTION Genomic surveillance elucidates Ebola virus origin and transmission during the 2014,12,13 � Robert F. Garry,8 � S. Humarr Khan,3 � Pardis C. Sabeti1,2 � In its largest outbreak, Ebola virus disease is spreading through Guinea, Liberia, Sierra Leone, and Nigeria. We sequenced 99 Ebola virus genomes from 78

Napp, Nils

283

Convergent evolution of protein structure  

E-Print Network [OSTI]

Convergent evolution of protein structure prediction and computer chess tournaments: CASP, Kasparov, and CAFASP by N. Siew D. Fischer Predicting the three-dimensional structure of a protein from its amino acid of Structure Prediction) blind prediction experiments aim to assess the prediction capabilities in the field

Fischer, Daniel

284

Emerging principles of regulatory evolution  

Science Journals Connector (OSTI)

...principles of regulatory evolution 10.1073/pnas.0700488104 Benjamin Prud'homme Nicolas Gompel Sean B. Carroll *Howard Hughes...1873 . 48 Protas ME Hersey C Kochanek D Zhou Y Wilkens H Jeffery WR Zon LI Borowsky R Tabin CJ ( 2006 ) Nat Genet 38 : 107...

Benjamin Prud'homme; Nicolas Gompel; Sean B. Carroll

2007-01-01T23:59:59.000Z

285

Cloud Formation, Evolution and Destruction  

E-Print Network [OSTI]

Chapter 4 Cloud Formation, Evolution and Destruction We now begin to trace the journey towards a star. How long does this take? The answer is surprisingly short: a good many clouds already contain new stars and these stars tend to be young. The typical cloud cannot spend long, if any time at all

Estalella, Robert

286

Requirements-driven software evolution  

Science Journals Connector (OSTI)

It is often the case that stakeholders want to strengthen/weaken or otherwise change their requirements for a system-to-be when certain conditions apply at runtime. For example, stakeholders may decide that if requirement R is violated more ... Keywords: Adaptive systems, Evolution, Modeling, Requirements, Requirements engineering

Vítor E. Souza; Alexei Lapouchnian; Konstantinos Angelopoulos; John Mylopoulos

2013-11-01T23:59:59.000Z

287

From mechanical modeling to seismic imaging of faults: A synthetic workflow to study the impact of faults on seismic  

Science Journals Connector (OSTI)

Abstract Although typically interpreted as 2D surfaces, faults are 3D narrow zones of highly and heterogeneously strained rocks, with petrophysical properties differing from the host rock. Here we present a synthetic workflow to evaluate the potential of seismic data for imaging fault structure and properties. The workflow consists of discrete element modeling (DEM) of faulting, empirical relations to modify initial acoustic properties based on volumetric strain, and a ray-based algorithm simulating prestack depth migration (PSDM). We illustrate the application of the workflow in 2D to a 100 m displacement normal fault in a kilometer size sandstone-shale sequence at 1.5 km depth. To explore the effect of particle size on fault evolution, we ran two DEM simulations with particle assemblages of similar bulk mechanical behavior but different particle size, one with coarse (1–3 m particle radii) and the other with fine (0.5–1.5 m particle radii) particles. Both simulations produce realistic but different fault geometries and strain fields, with the finer particle size model displaying narrower fault zones and fault linkage at later stages. Seismic images of these models are highly influenced by illumination direction and wave frequency. Specular illumination highlights flat reflectors outside the fault zone, but fault related diffractions are still observable. Footwall directed illumination produces low amplitude images. Hanging wall directed illumination images the shale layers within the main fault segment and the lateral extent of fault related deformation. Resolution and the accuracy of the reflectors are proportional to wave frequency. Wave frequencies of 20 Hz or more are necessary to image the different fault structure of the coarse and fine models. At 30–40 Hz, there is a direct correlation between seismic amplitude variations and the input acoustic properties after faulting. At these high frequencies, seismic amplitude variations predict both the extent of faulting and the changes in rock properties in the fault zone.

Charlotte Botter; Nestor Cardozo; Stuart Hardy; Isabelle Lecomte; Alejandro Escalona

2014-01-01T23:59:59.000Z

288

Fracture Evolution Following a Hydraulic Stimulation within an...  

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

Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir Fracture Evolution...

289

Comparative genomics and genome evolution in yeasts  

Science Journals Connector (OSTI)

...Sternberg and Janet Thornton Comparative genomics and genome evolution in yeasts Kenneth...powerful model system for comparative genomics research. The availability of multiple...cerevisiae |evolution|bioinformatics|genomics| 1. Introduction The rationale put...

2006-01-01T23:59:59.000Z

290

Modeling Texture Evolution during Recrystallization in Aluminum  

E-Print Network [OSTI]

Modeling Texture Evolution during Recrystallization in Aluminum Abhijit Brahme1,2 , Joseph Fridy3, Aluminum, Grain Boundary Mobility, Nucleation, Oriented Growth, Oriented Nucleation, Stored Energy, Monte Carlo Modeling. #12;Modeling Texture Evolution during Recrystallization in Aluminum 2 1. Introduction

Rollett, Anthony D.

291

Landscape Evolution at an Active Plate Margin  

E-Print Network [OSTI]

Landscape Evolution at an Active Plate Margin edited and compiled by David R. Jessey and Robert E;32009 Desert Symposium Table of contents Landscape evolution at an active plate margin: a field trip

de Lijser, Peter

292

Guiding Architects in Selecting Architectural Evolution Alternatives  

SciTech Connect (OSTI)

Although there exist methods and tools to support architecture evolution, the derivation and evaluation of alternative evolution paths are realized manually. In this paper, we introduce an approach, where architecture specification is converted to a graph representation. Based on this representation, we automatically generate possible evolution paths, evalute quality attributes for different architecture configurations, and optimize the selection of a particular path accordingly. We illustrate our approach by modeling the software architecture evolution of a crisis management system.

Ciraci, Selim; Sozer, Hasan; Aksit, Mehmet

2011-09-09T23:59:59.000Z

293

FEASIBILITY OF PRENATAL DIAGNOSIS OF ?-THALASSAEMIA WITH SYNTHETIC DNA PROBES IN TWO MEDITERRANEAN POPULATIONS  

Science Journals Connector (OSTI)

A feasibility study in two Mediterranean populations showed that prenatal diagnosis of ?-thalassaemia with a limited number of synthetic oligonucleotide probes would have been possible in about 70% of cases. To provide a comprehensive programme of prenatal diagnosis for the thalassaemias it would be necessary, in most populations, to combine fetal DNA analysis with fetal blood sampling and globin-chain synthesis studies.

S.L Thein; J.M Old; G Fiorelli; J.S Wainscoat; M Sampietro; R.B Wallace; D.J Weatherall

1985-01-01T23:59:59.000Z

294

Instrument Design Simulations for Synthetic Aperture Microwave Radiometric Imaging of Wind Speed and  

E-Print Network [OSTI]

Instrument Design Simulations for Synthetic Aperture Microwave Radiometric Imaging of Wind Speed, US Abstract -- The measurement of peak winds in hurricanes is critical to forecasting intensity in radiative transfer modeling for hurricane force winds and large incidence angles are required for HIRad

Ruf, Christopher

295

Validation of a Novel Immunoassay for the Detection of Synthetic Cannabinoids and Metabolites in Urine Specimens  

Science Journals Connector (OSTI)

......these products over the internet, in gas stations, convenience...appeal as substances of abuse. Pharmacologically...Commonly used drugs of abuse and therapeutic drugs...common substances of abuse, including THC and its...Kleinschmidt K., Schwarz E., Young A. Synthetic cannabinoid......

Amanda Arntson; Bill Ofsa; Denise Lancaster; John R. Simon; Matthew McMullin; Barry Logan

2013-06-01T23:59:59.000Z

296

Development and Investigation of Synthetic Skin Simulant Platform (3SP) in Friction Blister Applications  

E-Print Network [OSTI]

significant opportunity to take a similar approach of applying an engineering viewpoint to repeatably model the onset and formation of blisters on human skin. The authors have developed the Synthetic Skin Simulant Platform (3SP) to fulfill this role. The 3SP...

Guerra, Carlos

2012-02-14T23:59:59.000Z

297

BIODEGRADATION OF COMPOSITE NONWOVENS MADE OF NATURAL FIBERS AND SYNTHETIC POLYMERS  

E-Print Network [OSTI]

1 BIODEGRADATION OF COMPOSITE NONWOVENS MADE OF NATURAL FIBERS AND SYNTHETIC POLYMERS Ioan I Research Center, New Orleans, LA ABSTRACT Composite nonwovens have been prepared from bagasse and cotton-co-terephthalate) and poly(hydroxy butyrate). Some nonwoven compositions have been treated with flame retardants containing

298

Synthetic Analogues of Cysteinate-Ligated Non-Heme Iron and Non-Corrinoid Cobalt Enzymes  

E-Print Network [OSTI]

Synthetic Analogues of Cysteinate-Ligated Non-Heme Iron and Non-Corrinoid Cobalt Enzymes Julie A June 24, 2003 Contents 1. Introduction to Non-Heme Iron Enzymes 825 2. Nitrile Hydratase (NHase) 826 2.1. Enzyme Function 826 2.2. Enzyme Active Site Structure 826 2.3. Spectroscopic Properties 827 2

Kovacs, Julie

299

Effects of potential additives to promote seal swelling on the thermal stability of synthetic jet fuels  

SciTech Connect (OSTI)

Synthetic fuels derived from the Fischer-Tropsch (F-T) process using natural gas or coal-derived synthesis gas as feedstocks can be used for powering of ground vehicles, aircraft and ships. Because of their chemical and physical properties, F-T fuels will probably require additives in order to meet specifications with respect to lubricity and seal swell capability for use in ground and air vehicles. These additives can include oxygenates and compounds containing other heteroatoms that may adversely affect thermal stability. In order to understand what additives will be the most beneficial, a comprehensive experimental and computational study of conventional and additized fuels has been undertaken. The experimental approach includes analysis of the trace oxygenate and nitrogen-containing compounds present in conventional petroleum-derived fuels and trying to relate their presence (or absence) to changes in the desired properties of the fuels. This paper describes the results of efforts to test the thermal stability of synthetic fuels and surrogate fuels containing single-component additives that have been identified in earlier research as the best potential additives for promoting seal swelling in synthetic fuels, as well as mixtures of synthetic and petroleum-derived fuels.

Lind, D.D.; Gormley, R.G.; Zandhuis, P.H.; Baltrus, J.P.

2007-10-01T23:59:59.000Z

300

Making Lasting Bonds Through Synthetic Chemistry Tim Hubin and William Kelly  

E-Print Network [OSTI]

1 Making Lasting Bonds Through Synthetic Chemistry Tim Hubin and William Kelly Southwestern 73096 580-774-3026 tim.hubin@swosu.edu William J. Kelly, Ph. D. Professor and Chair Department-774-3026 william.kelly@swosu.edu 3. Development Staff Proposed: a. Full curriculum development and initial testing

Hubin, Tim

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Generating Synthetic Meta-data for Georeferenced Video Sakire Arslan Ay  

E-Print Network [OSTI]

to simulate the behavioral patterns of mobile cameras in the synthetic data. The data generation process can the feasibility and applicability of the proposed approach by providing comparisons with real-world data and GIS; H.3.4 [Information Storage and Retrieval]: Systems and Software--Performance eval- uation

Kim, Seon Ho

302

Basics of Polar-Format algorithm for processing Synthetic Aperture Radar images.  

SciTech Connect (OSTI)

The purpose of this report is to provide a background to Synthetic Aperture Radar (SAR) image formation using the Polar Format (PFA) processing algorithm. This is meant to be an aid to those tasked to implement real-time image formation using the Polar Format processing algorithm.

Doerry, Armin Walter

2012-05-01T23:59:59.000Z

303

The modeling and the simulation of the fluid machines of synthetic biology  

Science Journals Connector (OSTI)

In the past century, several conceptual and technological breakthroughs produced the digital computers and open the digital information age. At the very same time, the Watson --- Crick model of the digital coding of the genetic information was developed. ... Keywords: (DS)2: dynamical systems with a dynamical structure, MGS, computer modeling, domain specific language (DSL), fluid machines, simulation, spatial computing, synthetic biology, topological rewriting

Jean-Louis Giavitto

2011-08-01T23:59:59.000Z

304

Novel synthetic phytochelatin-based capacitive biosensor for heavy metal ion detection  

E-Print Network [OSTI]

to increasing levels of diverse pollutants. Heavy metals represent some of the most toxic ones not only to pollution by heavy metals, and is trying to remediate, control and minimize such pollution as muchNovel synthetic phytochelatin-based capacitive biosensor for heavy metal ion detection Ibolya

Chen, Wilfred

305

2000 Special Issue Synthetic brain imaging: grasping, mirror neurons and imitation  

E-Print Network [OSTI]

2000 Special Issue Synthetic brain imaging: grasping, mirror neurons and imitation M.A. Arbiba,b,*, A. Billardb , M. Iacobonic , E. Oztopa,b a USC Brain Project, University of Southern California, Los, CA 90089-2520, USA c Division of Brain Mapping, Neuropsychiatric Institute, UCLA School of Medicine

Oztop, Erhan

306

Synthetic and Mechanistic Chemistry Security at center of chemical and mechanistic  

E-Print Network [OSTI]

. Synthetic chemistry includes work in ligands for catalysts, fission-products separations for isotope. Conducting separations for (1) medical isotope purification and (2) nuclear fuel cycles. Performing of molybdenum-99 (Mo-99) from uranium sulfate solution using a separation flow sheet designed by Argonne

307

Rock glacier surface motion in Beacon Valley, Antarctica, from synthetic-aperture radar interferometry  

E-Print Network [OSTI]

al., 1998]. [5] Although subsurface ice in Beacon Valley has long been known [Linkletter et al., 1973Rock glacier surface motion in Beacon Valley, Antarctica, from synthetic-aperture radar of rock glaciers in the Beacon Valley sector of the McMurdo Dry Valleys, in East Antarctica, as part

Fountain, Andrew G.

308

Validation of a Novel Immunoassay for the Detection of Synthetic Cannabinoids and Metabolites in Urine Specimens  

Science Journals Connector (OSTI)

......mixed with 0.1% formic acid in water. Two transitions...carryover results worth noting at 5,000...UR-144 pentanoic acid JWH-022-3-OH...synthetic cannabinoid market, it is likely that...oxidized to carboxylic acid metabolites, which......

Amanda Arntson; Bill Ofsa; Denise Lancaster; John R. Simon; Matthew McMullin; Barry Logan

2013-06-01T23:59:59.000Z

309

Co-culture systems and technologies: taking synthetic biology to the next level  

Science Journals Connector (OSTI)

...1. Extracellular environment: a tunable dial The...and synthetic, or to engineer new such interactions...by the extracellular environment, which in turn is...analogy. Just as civil engineers need to consider the...consider the working environment of bio-parts at the...

2014-01-01T23:59:59.000Z

310

Hydrogen and minor element incorporation in synthetic rutile G. D. BROMILEY  

E-Print Network [OSTI]

Hydrogen and minor element incorporation in synthetic rutile G. D. BROMILEY 1,2, * AND N. HILAIRET from substitutional defects. KEYWORDS: rutile, hydrogen, substitution, solubility, spectroscopy of lower- valence cations may be charge-balanced by incorporation of hydrogen in the rutile structure

311

Phosphate Tether-Mediated Synthetic Studies- Applications in Natural Products Synthesis.  

E-Print Network [OSTI]

biological activity, the interesting structural features of these seven-membered bicyclic enol-phosphate triesters, which possess a 7,5-fused butyrolactone ring and chirality at C3, as well as at phosphorus, have identified them as interesting synthetic...

Jayasinghe Mudiyanselage, Susanthi Jayasinghe

2012-08-31T23:59:59.000Z

312

3'-OH LABELLING OF SYNTHETIC OLIGONUCLEOTIDES WITH NUCLEOTIDE ANALOGS TO USE THEM AS NON-RADIOACTIVE PROBES  

E-Print Network [OSTI]

3'-OH LABELLING OF SYNTHETIC OLIGONUCLEOTIDES WITH NUCLEOTIDE ANALOGS TO USE THEM AS NON. They can detect single base pair mismatch (for review, see Itakura et al 1984). Synthetic oligonucleotide probes are anticipated to be increasingly used in future with the easy accessibility to the automated DNA

Paris-Sud XI, Université de

313

Precisely Defined Protein–Polymer Conjugates: Construction of Synthetic DNA Binding Domains on Proteins by Using Multivalent Dendrons  

Science Journals Connector (OSTI)

Precisely Defined Protein–Polymer Conjugates: Construction of Synthetic DNA Binding Domains on Proteins by Using Multivalent Dendrons ... The authors describe the parallel synthesis of a library comprising 146 nanoparticles decorated with different synthetic small mols. ... (a) Newkome, G. R.; Moorefield, C. N.; Vögtle, F. Dendrimers and Dendrons:Concepts, Syntheses, Applications; Wiley-VCH: Weinheim, 2001. ...

Mauri A. Kostiainen; Géza R. Szilvay; Julia Lehtinen; David K. Smith; Markus B. Linder; Arto Urtti; Olli Ikkala

2007-08-25T23:59:59.000Z

314

Differential in vitro cellular response induced by exposure to synthetic vitreous fibers (SVFs) and asbestos crocidolite fibers  

E-Print Network [OSTI]

Differential in vitro cellular response induced by exposure to synthetic vitreous fibers (SVFs the effects of synthetic vitreous fibers (SVFs) on a mesothelial (MeT5A) and a fibroblast cell line (NIH3T3 crocidolite asbestos fibers, SVFs did not induce a significant increase in DNA synthesis. © 2005 Elsevier Inc

Ahmad, Sajjad

315

Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio and Richard M. Murray  

E-Print Network [OSTI]

Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio as an insulating device. This circuit is composed of nucleic acids, which can be designed to interact according their functionality. Insulation blocks are crucial to this purpose. Simple direct connection of different synthetic

Murray, Richard M.

316

Po/So Synthetics For A Variety of Oceanic Models and Their Implications For the Structure of the Oceanic Lithosphere  

Science Journals Connector (OSTI)

......realistic oceanic Pn wavetrains, J. geophys. Res., 90, 12755-12776. Sereno T. , Orcutt J., 1987, Synthetic Pn and Sn phases...realistic oceanic Pn wavetrains, 1. geophys. Res., 90, 12755-12776. Sereno, T. & Orcutt, J., 1987. Synthetic Pn and Sn phases......

S. Mallick; L. N. Frazer

1990-02-01T23:59:59.000Z

317

ieee transactions on ultrasonics, ferroelectrics, and frequency control, vol. 54, no. 7, july 2007 1399 An Implementation of Synthetic Aperture  

E-Print Network [OSTI]

, Senior Member, IEEE Abstract--A new implementation of a synthetic aper- ture focusing technique (SAFT-domain SAFT are com- pared in the paper using simulated and real ultrasonic data. I. Introduction Although advanced synthetic aperture focusing tech- niques (SAFT) implemented in frequency domain have been widely

318

Heat transfer characteristics of impinging steady and synthetic jets over vertical flat surface  

Science Journals Connector (OSTI)

Abstract In this paper, heat transfer characteristics of single-slot impinging steady and synthetic jets on a 25.4-mm × 25.4-mm vertical surface were experimentally investigated. The experiments were conducted with a fixed nozzle width of 1 mm. For the steady jet study, the parameters varied in the testing were nozzle length (4 mm, 8 mm, 12 mm, 15 mm), Reynolds (Re) number (100–2500), and dimensionless nozzle-to-plate spacing (H/Dh = 5, 10, 15, 20). Correlations for average Nusselt (Nu) number were developed to accurately describe experimental data. The heat transfer coefficient over a vertical surface increases with increasing Re number. For a small nozzle-to-plate spacing (H/Dh = 5), the average Nu number is not only a function of the Re number, but also a function of nozzle length. For large nozzle-to-plate spacing (H/Dh ? 10) and a nozzle length larger than 8 mm, the heat transfer coefficient is insensitive to H/Dh and nozzle length. An 8-mm × 1-mm synthetic jet was studied by varying the applied voltage (20–100 V), frequency (200–600 Hz), and dimensionless nozzle-to-plate spacing (H/Dh = 5, 10, 15, 20). Compared to the steady jet, the synthetic jet exhibited up to a 40% increase in the heat transfer coefficient. The dynamic Re number was introduced to correlate heat transfer characteristics between synthetic jets and steady jets. Using the dynamic Re number collapses the synthetic and steady jet data into a single Nu number curve.

Xin He; Jason A. Lustbader; Mehmet Arik; Rajdeep Sharma

2015-01-01T23:59:59.000Z

319

The Geography of Evolution and the Evolution of Geography  

E-Print Network [OSTI]

. 1980;6:383–96. Gulick JT. On the variation of species as related to their geographic distribution, illustrated by the Achatinellidae. Nature. 1872;6:222–4. Jordan DS. The law of geminate species. Am Nat. 1908;42:73–80. Lieberman BS. Paleobiogeography... this pattern helped convince Darwin that evolution had happened, he later came to de-emphasize allopatric speciation, particularly in Darwin (1859). There he held that rather than geographic isolation, it was primar- ily competition that led to the formation...

Lieberman, Bruce S.

2012-01-01T23:59:59.000Z

320

arXiv:1101.0723v1[q-bio.MN]4Jan2011 Bistability of an In Vitro Synthetic Autoregulatory Switch  

E-Print Network [OSTI]

synthetic DNA strands and three enzymes, bacteriophage T7 RNA polymerase, Escherichia coli ribonuclease of a synthetic DNA switch regulated by its RNA output acting as a transcription activator. We verifiedarXiv:1101.0723v1[q-bio.MN]4Jan2011 Bistability of an In Vitro Synthetic Autoregulatory Switch

Winfree, Erik

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Section III-F. Exempt Experiments The following recombinant or synthetic nucleic acid molecules are exempt from the NIH Guidelines and  

E-Print Network [OSTI]

a transposable element, provided the transposable element does not contain any recombinant and/or synthetic DNA or synthetic nucleic acid molecules that consist entirely of DNA segments from different species that exchange DNA by known physiological processes, though one or more of the segments may be a synthetic equivalent

Borenstein, Elhanan

322

Biochem. J. (1987) 246, 227-232 (Printed in Great Britain) The binding of the cyclic AMP receptor protein to synthetic DNA  

E-Print Network [OSTI]

protein to synthetic DNA sites containing permutations in the consensus sequence TGTGA Claudia JANSEN synthetic DNA-binding sites was investigated with a gel-retardation assay. A set of ten different sequences of synthetic-DNA binding sites. First, we show that a completely symmetric site binds better to CRP than

Clore, G. Marius

323

Characterization of a Putative Ovarian Oncogene, Elongation Factor 1?, Isolated by Panning a Synthetic Phage Display Single-Chain Variable Fragment Library with Cultured Human Ovarian Cancer Cells  

Science Journals Connector (OSTI)

...A synthetic scFv phage library is initially constructed...of synthetic phage scFv library with ovarian cancer cells. The synthetic phage scFv library (1 1013 transducing units...prepared from the periplasmic space of individual colonies...

Sameer Sharma; Jonathan Tammela; Xinhui Wang; Hilal Arnouk; Deborah Driscoll; Paulette Mhawech-Fauceglia; Shashikant Lele; A. Latif Kazim; and Kunle Odunsi

2007-10-01T23:59:59.000Z

324

Self-organizing molecular photonic structures based on functionalized synthetic nucleic acid (DNA) polymers  

Science Journals Connector (OSTI)

Work has been carried out with the objective of imparting the electronic/photonic property of extended Forster energy transfer into organized structures formed by the programmed self-assembly of synthetic nucleic acid units (fluorescent oligonucleotides and polynucleotides). Forster energy transfer is a non-radiative process by which a fluorescent donor molecule excited at one wavelength is able to transfer its absorbed photonic energy efficiently to a fluorescent acceptor molecule, in close proximity, which then re-emits it at a second wavelength. An extended energy transfer system, with multiple donor molecules, could be considered a molecular photonic antenna or amplifier structure. Relatively efficient extended Forster energy transfer was observed in initial experiments involving multiple fluorescent donor and acceptor oligonucleotides. These results provide a clear demonstration of totally synthetic molecules, with highly specific programmable self-assembling properties, organizing into molecular structures with useful electronic/photonic properties.

M J Heller; R H Tullis

1991-01-01T23:59:59.000Z

325

Structure and photoinduced electron transfer in exceptionally stable synthetic DNA hairpins with stilbenediether linkers  

SciTech Connect (OSTI)

Bis(oligonucleotide) conjugates with synthetic linkers connecting short complementary oligonucleotides are known to form synthetic DNA or RNA hairpins which are, in some cases, more stable than natural hairpins which possess oligonucleotide linkers. The authors report here that conjugates possessing stilbenediether (SE) linkers form exceptionally stable (poly)dT-SE-(poly)dA hairpins. The crystal structure of a Se-bridged hairpin confirms that it adopts a B-form structure in which the stilbene is {pi}-stacked with the adjacent base pair. The stilbenediether also mediates novel lattice interactions that are distinct from those normally found in DNA crystals. The singlet excited state of the stilbenediether is a strong electron donor which is rapidly quenched by either neighboring dT-dA or dC-dG base pairs which function as electron acceptors. This behavior is complementary to that of conjugates possessing a stilbenedicarboxamide linker (SA, Chart 1), which serves as an electron acceptor.

Lewis, F.D.; Liu, X.; Wu, Y. [and others

1999-10-27T23:59:59.000Z

326

Method for forming a layer of synthetic corrosion products on tubing surfaces  

DOE Patents [OSTI]

A method is provided for forming a synthetic corrosion product layer on tube surfaces. The method utilizes two dissimilar materials with different coefficients of thermal expansion. An object tube and sacrificial tube are positioned one inside the other such that an annular region is created between the two tubes' surfaces. A slurry of synthetic corrosion products is injected into this annular region and the assembly is heat treated. This heat causes the tubes to expand, the inner tube with the higher coefficient of expansion expanding more than the outer tube, thereby creating internal pressures which consolidate the corrosion products and adhere the corrosion products to the tubing surfaces. The sacrificial tube may then be removed by conventional chemical etching or mechanical methods.

Lane, Michael H. (Clifton Park, NY); Salamon, Eugene J. M. (Clifton Park, NY)

1996-01-01T23:59:59.000Z

327

3D MHD Modeling of the Gaseous Structure of the Galaxy: Synthetic Observations  

E-Print Network [OSTI]

We generated synthetic observations from the four-arm model presented in Gomez & Cox (2004) for the Galactic ISM in the presence of a spiral gravitational perturbation. We found that velocity crowding and diffusion have a strong effect in the l-v diagram. The v-b diagram presents structures at the expected spiral arm velocities, that can be explained by the off-the-plane structure of the arms presented in previous papers of this series. Such structures are observed in the Leiden/Dwingeloo HI survey. The rotation curve, as measured from the inside of the modeled galaxy, shows similarities with the observed one for the Milky Way Galaxy, although it has large deviations from the smooth circular rotation corresponding to the background potential. The magnetic field inferred from a synthetic synchrotron map shows a largely circular structure, but with interesting deviations in the midplane due to distortion of the field from circularity in the interarm regions.

Gómez, G C; Gomez, Gilberto C.; Cox, Donald P.

2004-01-01T23:59:59.000Z

328

3D MHD Modeling of the Gaseous Structure of the Galaxy: Synthetic Observations  

E-Print Network [OSTI]

We generated synthetic observations from the four-arm model presented in Gomez & Cox (2004) for the Galactic ISM in the presence of a spiral gravitational perturbation. We found that velocity crowding and diffusion have a strong effect in the l-v diagram. The v-b diagram presents structures at the expected spiral arm velocities, that can be explained by the off-the-plane structure of the arms presented in previous papers of this series. Such structures are observed in the Leiden/Dwingeloo HI survey. The rotation curve, as measured from the inside of the modeled galaxy, shows similarities with the observed one for the Milky Way Galaxy, although it has large deviations from the smooth circular rotation corresponding to the background potential. The magnetic field inferred from a synthetic synchrotron map shows a largely circular structure, but with interesting deviations in the midplane due to distortion of the field from circularity in the interarm regions.

Gilberto C. Gomez; Donald P. Cox

2004-07-19T23:59:59.000Z

329

2D full wave modeling for a synthetic Doppler backscattering diagnostic  

SciTech Connect (OSTI)

Doppler backscattering (DBS) is a plasma diagnostic used in tokamaks and other magnetic confinement devices to measure the fluctuation level of intermediate wavenumber (k{sub {theta}}{rho}{sub s}{approx} 1) density fluctuations and the lab frame propagation velocity of turbulence. Here, a synthetic DBS diagnostic is described, which has been used for comparisons between measurements in the DIII-D tokamak and predictions from nonlinear gyrokinetic simulations. To estimate the wavenumber range to which a Gaussian beam would be sensitive, a ray tracing code and a 2D finite difference, time domain full wave code are used. Experimental density profiles and magnetic geometry are used along with the experimental antenna and beam characteristics. An example of the effect of the synthetic diagnostic on the output of a nonlinear gyrokinetic simulation is presented.

Hillesheim, J. C.; Schmitz, L.; Kubota, S.; Rhodes, T. L.; Carter, T. A. [Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States); Holland, C. [University of California, San Diego, La Jolla, California 92093 (United States)

2012-10-15T23:59:59.000Z

330

Production of biocommodities and bioelectricity by cell-free synthetic enzymatic pathway biotransformations: Challenges and opportunities  

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

PERSPECTIVE PERSPECTIVE Production of Biocommodities and Bioelectricity by Cell-Free Synthetic Enzymatic Pathway Biotransformations: Challenges and Opportunities Y.-H. Percival Zhang 1,2,3 1 Biological Systems Engineering Department, Virginia Polytechnic Institute and State University, 210-A Seitz Hall, Blacksburg, Virginia 24061; telephone: 540-231-7414; fax: 540-231-3199; e-mail: biofuels@vt.edu 2 Institute for Critical Technology and Applied Science (ICTAS), Virginia Polytechnic Institute and State University, Blacksburg, Virginia 3 DOE Bioenergy Science Center, Oak Ridge, Tennessee Received 21 July 2009; revision received 18 November 2009; accepted 23 November 2009 Published online 7 December 2009 in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/bit.22630 ABSTRACT: Cell-free synthetic (enzymatic) pathway bio- transformation (SyPaB)

331

Evolution of blind cave fish  

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

Evolution of blind cave fish Evolution of blind cave fish Name: rudeeric Location: N/A Country: N/A Date: N/A Question: I am a biology teacher, now starting a unit on evolution. Just about every book on the topic mentions the blind and albino cave fish. But I've always been bothered by this example. Why is being blind and white an advantage for animals in a cave? I understand that they have no use for eyes or pigment, but this sounds like we're back to Lamarck's law of use and disuse. Wouldn't there first have to be the mutations to cause these? And in order for the changes to become common, they would have to be advantageous. Although there is no use for the eyes or pigment, what is the advantage to losing them? Replies: I can think of one important use for the loss of pigment in fish. It has been documented with the early breeding of black mollies and black angelfish, that the fry were extremely hard to keep alive. The breeders found that these fish required much greatly quantities of protein to produce the pigment melanin, and therefore supplementing the fry with protein quantities that were many times higher than those required by less pigmented fish kept them alive. Imagine then, a situation where a random mutation of albinism in a cave dwelling fish results in a population that can use the protein that it consumes for growth and reproduction, rather than for pigment production. The albino fish could quickly out-produce the pigmented fish. What the "real" explanation would be as described by an evolutionary biologist, I have no idea.

332

Synthetic pH Sensor, Protein Nanomaterials, Metabolites in Stem Cells, and DNA Barcodes  

Science Journals Connector (OSTI)

Each month, Chemistry & Biology Select highlights a selection of research reports from the recent literature. These highlights are a snapshot of interesting research done across the field of chemical biology, and this month's Select includes reports on a synthetic pH sensor, a tag that guides assembly of proteins into nanomaterials, a role of an intermediary metabolite in regulation of stem cells, and DNA-barcoded nucleosome libraries.

2014-01-01T23:59:59.000Z

333

Hydrogenation of Aromatics in Synthetic Crude Distillates Catalyzed by Platinum Supported in Molecular Sieves  

Science Journals Connector (OSTI)

Catalytic hydrogenation of synthetic crude distillates from Canadian oil sands was carried out over platinum metal supported in pillared interlayered clay (PILC) and Y-zeolite. ... Pillared interlayered clay (PILC) was prepared using Accofloc 350, a sodium montmorillonite supplied by American Colloid Co. with a cation-exchange capacity (cec) of 80 mequiv/100 g. ... After stirring overnight, the suspension was cooled and the PILC was centrifuged, washed repeatedly until free of chloride ion, air dried, and ground to <200 mesh. ...

Naoto Kimbara; Jean-Pierre Charland; Michael F. Wilson

1996-11-07T23:59:59.000Z

334

Synthetic cytokinin effects on vegetative propagation of Lilium longiflorum Thunb. 'Ace'  

E-Print Network [OSTI]

A ', ~/~ '- . g. ~ember August 1974 ABSTRACT Synthetic Cytokinin Effects on Vegetative Propagation oi' Lili 1 ~if1 , h O. 'Ace'. (hog : 1974I Cathy Marie Wilhite, B. S. , Texas Tech University Chairman of Advisory Committee: Dr. A. E. Nightingale Foliar... of her commi ttee, Drs. A. E. Nightingale, H. T. Blackhurst, and M. H. Milford, for their patience, guidance, and understanding. She also appreciates the encouragement of the faculty, secretaries, and fellow graduate students in the Horticulture...

Wilhite, Cathy Marie

1974-01-01T23:59:59.000Z

335

Potential Additives to Promote Seal Swell in Synthetic Fuels and Their Effect on Thermal Stability  

SciTech Connect (OSTI)

Synthetic fuels derived from the Fischer–Tropsch (F-T) process using natural gas or coal-derived synthesis gas as feedstocks can be used for powering ground vehicles, aircraft, and ships. Because of their chemical and physical properties, F-T fuels will probably require additives in order to meet specifications with respect to lubricity and seal swell capability for use in ground and air vehicles. Using both experimental and computational studies, the propensity of certain species to enhance the seal swell characteristics of synthetic fuels and surrogates has been determined, and promising additives have been identified. Important structural characteristics for potential additives, namely an aromatic ring along with a polar constituent, are described. The thermal stability of synthetic and surrogate fuels containing the single-component additive benzyl alcohol, which is representative of this structural class, has been determined by batch stressing of the mixtures at 350 °C for up to 12 h. Synthetic fuels spiked with benzyl alcohol at concentrations (vol %) of 1.0, 0.75, and 0.5 have demonstrated the ability to swell nitrile rubber o-rings to a comparable degree as petroleum jet fuel. Further, batch reactor studies have shown that addition of benzyl alcohol does not degrade the thermal oxidative stability of the fuel based on gravimetric analysis of the solid deposits after stressing. GC-MS was used to characterize the products from thermal stressing of neat and additized surrogate jet fuel, and their compositions were compared with respect to the creation of certain species and their potential effect on deposition.

Link, D.D.; Gormley, R.J.; Baltrus, J.P.; Anderson, R.R.; Zandhuis, P.H.

2008-03-01T23:59:59.000Z

336

Synthetic Lorentz force in classical atomic gases via Doppler effect and radiation pressure  

E-Print Network [OSTI]

We theoretically predict a novel type of synthetic Lorentz force for classical (cold) atomic gases, which is based on the Doppler effect and radiation pressure. A fairly uniform and strong force can be constructed for gases in macroscopic volumes of several cubic millimeters and more. This opens the possibility to mimic classical charged gases in magnetic fields, such as those in a tokamak, in cold atom experiments.

Dub?ek, T; Juki?, D; Aumiler, D; Ban, T; Buljan, H

2014-01-01T23:59:59.000Z

337

Muffle furnace evaluation of FGD sludge-coal-clay mixtures as potential synthetic aggregates  

E-Print Network [OSTI]

reserve locations as they are utilized for housing and industrial requirements of land (8) . Space that was once available for aggregate mining, handling and storage is becoming more and more limited. Lastly and perhaps more important, synthetic...), High-lime fl, y ashes (those resulting from the combustion of lignite or other subbi tuminous coals) may contain up to 30 percent calcium oxide. Total alkalies (sodium and potassium oxides) approach 5 percent. Particles may range in size from 2 x 10...

Pettit, Jesse William

2012-06-07T23:59:59.000Z

338

High precision ultrasonic scanning system and SAFT-UT (synthetic aperture technique) development  

SciTech Connect (OSTI)

The NDT divisions at SNLA are continually striving to anticipate customer requests by adding advanced test facilities. This paper describes a new ultrasonic testing system being developed in Albuquerque to provide precise scanning of smaller test objects. There are two major subsystems that make-up the ultrasonic testing system, a high precision scanner/digitizer and a real-time processing system which automates the synthetic aperture focusing technique. These subsystems are described in the following sections.

Shurtleff, W.W.

1987-06-01T23:59:59.000Z

339

Evolution of the Roycean Philosophy  

E-Print Network [OSTI]

of the Roycean philosophy. EVOLUTION OP THE ROYCEAN PHILOSOPHY .. A THESIS. By E. H. Parisho. Bib I lography. McCiintock and Strong Encyclopaedia. 'tfogf^tV--- S t u d e n t h i s t o r y of Philosophy. Locke Concerning Human Understanding. Spinoza... and the Individual. If. fioy c ©7 -!-"r - - v <—Conception of God. Introduction. I D E A L I S M , The thought that unity runs through a l l experience. The doctrine of Idealism i s usually thought of as beginning with Plato, " The term ideas was older than...

Parisho, Eli Harris

1909-01-01T23:59:59.000Z

340

Dynamical Evolution of Disk Galaxies  

E-Print Network [OSTI]

Spiral patterns are important agents of galaxy evolution. In this review, I describe how the redistribution of angular momentum by recurrent transient spiral patterns causes the random speeds of stars to rise over time, metallicity gradients to be reduced, and drives large-scale turbulence in the disk, which could be important for galactic dynamos. I also outline a possible mechanism for the recurrence of spiral instabilities and supporting evidence from solar neighborhood kinematics. Finally, I confirm that cloud scattering alone would predict the local velocity ellipsoid to be flattened, contrary to long-held expectations.

J. A. Sellwood

2008-03-11T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

NETL: Environmental Research - Fate of Mercury in Synthetic Gypsum Used for  

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

Fate of Mercury in Synthetic Gypsum Used for Wallboard Production Fate of Mercury in Synthetic Gypsum Used for Wallboard Production This project will provide information about the fate of mercury in synthetic gypsum produced by wet FGD systems on coal-fired power plants, when used as feedstock for wallboard production. Wet FGD systems play a key role in current and future efforts to limit the air emissions of mercury control from coal-fired plants. Potential emissions of mercury from FGD byproduct gypsum during wallboard production could limit overall mercury control levels achieved by the coal power industry. Furthermore, any adverse effects of elevated mercury levels in wallboard products could undermine the use of FGD gypsum as a feedstock for wallboard plants. Under a Cooperative Agreement with DOE-NETL, USG Corp., a major producer of wallboard, will provide high-quality data on the extent and location of mercury release during the wallboard production process, and provide additional information on the potential for mercury leaching at the end of the wallboard life cycle, when it is disposed in municipal landfills.

342

THE ROLE OF SYNTHETIC DNA IN THE PREPARATION OF STRUCTURAL GENES CODING FOR PROTEINS  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses the role of synthetic DNA in the preparation of structural genes coding for proteins. One of the key steps in the production of proteins by recombinant DNA technology is the preparation of structural genes coding for the desired proteins. There may be two approaches to this goal: (1) artificial gene synthesis and (2) a combination of cloned cDNA sequences and synthetic DNAs. The method of artificial gene synthesis for the preparation of artificial genes was developed for the synthesis of genes for tRNAs in the late 1960s. The approach of combination of cloned cDNA sequences and synthetic DNA has been developed for the preparation of a gene coding for the human growth hormone. The chapter describes an alternative approach for the synthesis of polydeoxyribonucleotides with defined sequences longer than those accessible by conventional chemical methods. Recent advances in the chemical synthesis of oligonucleotides help to synthesize single-stranded oligonucleotides of up to 40 bases in length, rapidly. It is now possible to synthesize double-stranded DNA fragments using DNA polymerase I in the presence of four deoxynucleoside triphosphosphates.

John J. Rossi; Ryszard Kierzek; Ting Huang; Peter Walker; Keiichi Itakura

1982-01-01T23:59:59.000Z

343

Synthetic fuels and the environment: an environmental and regulatory impacts analysis  

SciTech Connect (OSTI)

Since July 1979 when DOE/EV-0044 report Environmental Analysis of Synthetic Liquid fuels was published the synthetic fuels program proposals of the Administration have undergone significant modifications. The program year for which the development goal of 1.5 million barrels per day is to be reached has been changed from 1990 to 1995. The program plan is now proposed to have two stages to ensure, among other things, better environmental protection: an initial stage emphasizing applied research and development (R and D), including environmental research, followed by a second stage that would accelerate deployment of those synthetic fuel technologies then judged most ready for rapid deployment and economic operation within the environmental protection requirements. These program changes have significantly expanded the scope of technologies to be considered in this environmental analysis and have increased the likelihood that accelerated environmental R and D efforts will be successful in solving principal environmental and worker safety concerns for most technologies prior to the initiation of the second stage of the accelerated deployment plan. Information is presented under the following section headings: summary; study description; the technologies and their environmental concerns (including, coal liquefaction and gasification, oil shale production, biomass and urban waste conversion); regulatory and institutional analyses; and environmental impacts analysis (including air and water quaility analyses, impacts of carbon dioxide and acid rain, water availability, solid and hazardous wastes, coal mining environmental impacts, transportation issues, community growth and change, and regional impacts). Additional information is presented in seventeen appendixes. (JGB)

None

1980-06-01T23:59:59.000Z

344

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

345

Adiabatic theorems for generators of contracting evolutions  

E-Print Network [OSTI]

We develop an adiabatic theory for generators of contracting evolution on Banach spaces. This provides a uniform framework for a host of adiabatic theorems ranging from unitary quantum evolutions through quantum evolutions of open systems generated by Lindbladians all the way to classically driven stochastic systems. In all these cases the adiabatic evolution approximates, to lowest order, the natural notion of parallel transport in the manifold of instantaneous stationary states. The dynamics in the manifold of instantaneous stationary states and transversal to it have distinct characteristics: The former is irreversible and the latter is transient in a sense that we explain. Both the gapped and gapless cases are considered. Some applications are discussed.

J. E. Avron; M. Fraas; G. M. Graf; P. Grech

2012-06-04T23:59:59.000Z

346

Assembly of Designed Oligonucleotides: A Useful Tool in Synthetic Biology for Creating High-Quality Combinatorial DNA Libraries  

Science Journals Connector (OSTI)

The method dubbed Assembly of Designed Oligonucleotides (ADO) is a powerful tool in synthetic biology to create combinatorial DNA libraries for gene, protein, metabolic, and ... amino acid alphabets for saturatio...

Carlos G. Acevedo-Rocha; Manfred T. Reetz

2014-01-01T23:59:59.000Z

347

The Use of Synthetic DNA Probes for the Field Identification of Members of the Anopheles gambiae Complex  

Science Journals Connector (OSTI)

The series of cloned DNA probes were sequenced in order to define ... invariant within each species were used to prepare synthetic oligonucleotide probes to replace the cloned DNA probes (Table 2) (19,20...). The...

Susannah M. Hill; Julian M. Crampton

1996-01-01T23:59:59.000Z

348

Inheritance in turnip of variable-number tandem-repeat genetic markers revealed with synthetic repetitive DNA probes  

Science Journals Connector (OSTI)

Oligomers (16–26 mers) composed of short, tandemly repeated DNA sequences (3–10 bases) were used ... number of repeats to make 15 different PCR synthetic tandem-repeat (STR) probes. These PCR...Brassica rapa L.) ...

S. H. Rogstad

1994-12-01T23:59:59.000Z

349

Powered by technology or powering technology? – Belief-based decision-making in nuclear power and synthetic fuel.  

E-Print Network [OSTI]

?? The overarching question in this study is how and why technical-fixes in energy policy failed. In the post-WWII era, civilian nuclear power and synthetic… (more)

Yang, Chi-Jen

2008-01-01T23:59:59.000Z

350

Assessment of radial image distortion and spherical aberration on three-dimensional synthetic aperture particle image velocimetry measurements  

E-Print Network [OSTI]

This thesis presents a numerical study of the effects of radial image distortion and spherical aberration on reconstruction quality of synthetic aperture particle image velocimetry (SAPIV) measurements. A simulated SAPIV ...

Kubaczyk, Daniel Mark

2013-01-01T23:59:59.000Z

351

The potential utilization of nuclear hydrogen for synthetic fuels production at a coal–to–liquid facility / Steven Chiuta.  

E-Print Network [OSTI]

??The production of synthetic fuels (synfuels) in coal–to–liquids (CTL) facilities has contributed to global warming due to the huge CO2 emissions of the process. This… (more)

Chiuta, Steven

2010-01-01T23:59:59.000Z

352

Synthetic Studies Toward Selected Members of the Pyrrole-imidazole Alkaloids: Axinellamine, Konbu’acidin and Palau' amine  

E-Print Network [OSTI]

cases, significant biological activities, have made these alkaloids the synthetic targets of a number of research groups across the world. In our approach, following early biosynthetic proposal by Kinnel and Scheuer and Al-Mourabit and Potier...

Zancanella, Manuel

2011-10-21T23:59:59.000Z

353

Efficient recovery of nano-sized iron oxide particles from synthetic acid-mine drainage (AMD) water using fuel cell  

E-Print Network [OSTI]

Efficient recovery of nano-sized iron oxide particles from synthetic acid-mine drainage (AMD) water electricity. Here we show that this approach can also be used as a technique to generate spherical nano

354

Manual and Semiautomated Wind Direction Editing for Use in the Generation of Synthetic Aperture Radar Wind Speed Imagery  

Science Journals Connector (OSTI)

Previous studies have demonstrated that satellite synthetic aperture radar (SAR) can be used as an accurate scatterometer, yielding wind speed fields with subkilometer resolution. This wind speed generation is only possible, however, if a ...

George S. Young; Todd D. Sikora; Nathaniel S. Winstead

2007-06-01T23:59:59.000Z

355

Synthetic Fuel  

ScienceCinema (OSTI)

Two global energy priorities today are finding environmentally friendly alternatives to fossil fuels, and reducing greenhouse gass Two global energy priorities today are finding environmentally friendly alternatives to fossil fuels, and reducing greenhous

Idaho National Laboratory - Steve Herring, Jim O'Brien, Carl Stoots

2010-01-08T23:59:59.000Z

356

Physical characterization of magmatic liquids. [Ultrasonic and Brillouin Scattering Studies of Natural and Synthetic Silicates and Oxides  

SciTech Connect (OSTI)

This report describes a research project that was conducted from August 15, 1985 to February 28, 1992. The project was based on the ultrasonic studies of natural and synthetic silicate melts, and the study of Brillouin scattering of synthetic silicates and oxides. Measurements of the compressional wave velocity and attenuation can be established using the ultrasonic methods. Temperature dependences of silicates can be established by the Brillouin scattering. (MB)

Manghnani, M.H.

1992-06-05T23:59:59.000Z

357

miniEugene: A Web-based Software Tool for Constraint-based Design Specifications of Synthetic Biological Systems  

Science Journals Connector (OSTI)

miniEugene: A Web-based Software Tool for Constraint-based Design Specifications of Synthetic Biological Systems ... Publication Date (Web): November 26, 2014 ... We also provide links and references to more information on the miniEugene web application and the integration of the miniEugene software library into sophisticated Computer-Aided Design (CAD) tools for synthetic biology (www.eugenecad.org). ...

Ernst Oberortner; Douglas Densmore

2014-11-26T23:59:59.000Z

358

Affinity precipitation using thermo-responsive, water-soluble polymers as matrix; synthetic studies toward the ageliferins  

E-Print Network [OSTI]

AFFINITY PRECIPITATION USING THERMO-RESPONSIVE, WATER- SOLUBLE POLYMERS AS MATRIX; SYNTHETIC STUDIES TOWARD THE AGELIFERINS A Thesis by MIN ZHOU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2003 Major Subject: Chemistry AFFINITY PRECIPITATION USING THERMO-RESPONSIVE, WATER- SOLUBLE POLYMERS AS MATRIX; SYNTHETIC STUDIES TOWARD THE AGELIFERINS A Thesis by MIN ZHOU Submitted to Texas A...

Zhou, Min

2005-02-17T23:59:59.000Z

359

Efficiency and emissions of a spark ignition engine fueled with synthetic gases obtained from catalytic decomposition of biogas  

Science Journals Connector (OSTI)

This paper presents the results of the tests developed in a naturally aspirated spark ignition engine, intended for installation in vehicles, fueled with synthetic gases obtained from catalytic decomposition of biogas. The experimental tests were carried out at three equivalence ratios and different speeds and loads. Two synthetic blends were used and the results were compared with those of gasoline and methane. Efficiency and emissions were calculated for the different fuels under the same operation conditions and it was found that at lean equivalence ratios, brake thermal efficiency with synthetic gases approached to the traditional fuels and even improved it at ? = 0.7. BSCO2 emissions increased due to the CO2 content of the gaseous blends. While CO increased at stoichiometric conditions, it decreased at lean conditions because the H2 contained in synthetic gases improved combustion at these conditions. BSHC measured were very low with synthetic gases because of the low content of methane in blends. The change in the fraction of H2 and CO2 of the synthetic blends led to quite different results in BSNOx. Syngas 1 \\{BSNOx\\} emissions were the lowest of all fuels, while syngas 2 \\{BSNOx\\} were the highest because of its high H2 fraction.

J. Arroyo; F. Moreno; M. Muñoz; C. Monné

2013-01-01T23:59:59.000Z

360

Temporal Evolution of Social Innovation  

E-Print Network [OSTI]

Acceptance of an innovation can occur through mutliple exposures to individuals who have already accepted it. Presented here is a model to trace the evolution of an innovation in a social network with a preference $\\lambda$, amidst topological constraints specified mainly by connectivity, $k$ and population size, $N_k$. With the interplay between properties of innovation and network structure, the model attempts to explain the variations in patterns of innovations across social networks. Time in which the propagation attains highest velocity depends on $\\lambda^{-2}k^{-2}N_{k}^{1/2}$. Dynamics in random networks may lead or lag behind that in scale-free networks depending on the average connectivity. Hierarchical propagation is evident across connectivity classes within scale-free networks, as well as across random networks with distinct topological indices. For highly preferred innovations, the hierarchy observed within scale-free networks tends to be insignificant. The results have implications for administ...

Kulkarni, Varsha S

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Evolution of self-incompatibility: Early Views  

E-Print Network [OSTI]

Evolution of self-incompatibility: Early Views: Whitehouse (1950): 1. Sudden rise of angiosperms by Whitehouse (1950). Isolation of components of the self-incompatibilities paved the way to study the evolution of SIs Matton et al. (1994): Molecular data supports Bateman. Three self-incompatibility systems

Bhattacharyya, Madan Kumar

362

Modeling ontology evolution with SetPi  

Science Journals Connector (OSTI)

Ontology is doomed to evolve due to the changes of the domain it models. It has always been the key issue how to represent the changes during ontology evolution, because it forms the basis to detect, evaluate, implement and propagate those changes. However, ... Keywords: Formalization, Modeling, Ontology evolution, Pi-calculus

Lei Liu; Peng Zhang; Rong Fan; Rui Zhang; Hongji Yang

2014-01-01T23:59:59.000Z

363

Software Architecture Evolution Olivier Barais1  

E-Print Network [OSTI]

1 Software Architecture Evolution Olivier Barais1 , Anne Franc¸oise Le Meur2 , Laurence Duchien2 and detailed treatment of the var- ious state-of-the-art approaches to evolving software architectures. Furthermore, we discuss one particular framework for software architecture evolution in more detail. 1

Paris-Sud XI, Université de

364

Angular correlations and high energy evolution  

SciTech Connect (OSTI)

We address the question of to what extent JIMWLK evolution is capable of taking into account angular correlations in a high energy hadronic wave function. Our conclusion is that angular (and indeed other) correlations in the wave function cannot be reliably calculated without taking into account Pomeron loops in the evolution. As an example we study numerically the energy evolution of angular correlations between dipole scattering amplitudes in the framework of the large N{sub c} approximation to JIMWLK evolution (the 'projectile dipole model'). Target correlations are introduced via averaging over an (isotropic) ensemble of anisotropic initial conditions. We find that correlations disappear very quickly with rapidity even inside the saturation radius. This is in accordance with our physical picture of JIMWLK evolution. The actual correlations inside the saturation radius in the target QCD wave function, on the other hand, should remain sizable at any rapidity.

Kovner, Alex [Physics Department, University of Connecticut, 2152 Hillside Road, Storrs, Connecticut 06269-3046 (United States); Lublinsky, Michael [Physics Department, Ben-Gurion University of the Negev, Beer Sheva 84105 (Israel); Physics Department, University of Connecticut, 2152 Hillside Road, Storrs, Connecticut 06269-3046 (United States)

2011-11-01T23:59:59.000Z

365

DNA sequence analyses of blended herbal products including synthetic cannabinoids as designer drugs  

Science Journals Connector (OSTI)

In recent years, various herbal products adulterated with synthetic cannabinoids have been distributed worldwide via the Internet. These herbal products are mostly sold as incense, and advertised as not for human consumption. Although their labels indicate that they contain mixtures of several potentially psychoactive plants, and numerous studies have reported that they contain a variety of synthetic cannabinoids, their exact botanical contents are not always clear. In this study, we investigated the origins of botanical materials in 62 Spice-like herbal products distributed on the illegal drug market in Japan, by DNA sequence analyses and BLAST searches. The nucleotide sequences of four regions were analyzed to identify the origins of each plant species in the herbal mixtures. The sequences of “Damiana” (Turnera diffusa) and Lamiaceae herbs (Mellissa, Mentha and Thymus) were frequently detected in a number of products. However, the sequences of other plant species indicated on the packaging labels were not detected. In a few products, DNA fragments of potent psychotropic plants were found, including marijuana (Cannabis sativa), “Diviner's Sage” (Salvia divinorum) and “Kratom” (Mitragyna speciosa). Their active constituents were also confirmed using gas chromatography–mass spectrometry (GC–MS) and liquid chromatography–mass spectrometry (LC–MS), although these plant names were never indicated on the labels. Most plant species identified in the products were different from the plants indicated on the labels. The plant materials would be used mainly as diluents for the psychoactive synthetic compounds, because no reliable psychoactive effects have been reported for most of the identified plants, with the exception of the psychotropic plants named above.

Jun Ogata; Nahoko Uchiyama; Ruri Kikura-Hanajiri; Yukihiro Goda

2013-01-01T23:59:59.000Z

366

Generation of synthetic benchmark electrical load profiles using publicly available load and weather data  

Science Journals Connector (OSTI)

Abstract Electrical load profiles of a particular region are usually required in order to study the performance of renewable energy technologies and the impact of different operational strategies on the power grid. Load profiles are generally constructed based on measurements and load research surveys which are capital and labour-intensive. In the absence of true load profiles, synthetically generated load profiles can be a viable alternative to be used as benchmarks for research or renewable energy investment planning. In this paper, the feasibility of using publicly available load and weather data to generate synthetic load profiles is investigated. An artificial neural network (ANN) based method is proposed to synthesize load profiles for a target region using its typical meteorological year 2 (TMY2) weather data as the input. To achieve this, the proposed ANN models are first trained using TMY2 weather data and load profile data of neighbouring regions as the input and targeted output. The limited number of data points in the load profile dataset and the consequent averaging of TMY2 weather data to match its period resulted in limited data availability for training. This challenge was tackled by incorporating generalization using Bayesian regularization into training. The other major challenge was facilitating ANN extrapolation and this was accomplished by the incorporation of domain knowledge into the input weather data for training. The performance of the proposed technique has been evaluated by simulation studies and tested on three real datasets. Results indicate that the generated synthetic load profiles closely resemble the real ones and therefore can be used as benchmarks.

Gobind G. Pillai; Ghanim A. Putrus; Nicola M. Pearsall

2014-01-01T23:59:59.000Z

367

Chapter 14 - Phytoremediation of Pb-Contaminated Soils Using Synthetic Chelates  

Science Journals Connector (OSTI)

Abstract Although industrialization and high input agriculture has led to improvements in standards of human life on earth, it has resulted in multifarious problems for all inhabitants of this blue planet. Among many others, enrichment of water–soil–plant ecosystem with potentially toxic elements is considered to be one of the most serious threats due to ill effects over all living organisms including humans. As compared to other toxic elements, soil contamination due to Pb warrants special attention because of its long retention in soil and lethal effects on crop growth and human health. A number of techniques have been developed and devised to lower the total and / or available Pb concentration in soils and in turn their accumulation the food chain. However, phytoextraction has attracted tremendous attention from the scientific community due to its lower cost, less disruptive effects on soil and the surrounding environment, and wider acceptance in society. The total concentration of Pb in contaminated soils may not be truly representative of its bioavailability because the major portions of Pb in soil occur in the unavailable forms. Therefore, certain types of chemicals are applied to soil to increase the mobility and phytoavailabilty of Pb to help improve phytoremediative ability of plants to clean up soil within a reasonable time frame. Synthetic and natural organic ligands, such as EDTA, ethylene diamine disuccinate (EDDS), low-molecular-weight organic acids (LMWOA), nitrilotriacetic acid (NTA) and humic substances (HSs) have been used extensively in Pb remediation techniques. With increasing use of synthetic chelants for remediation techniques, detailed understanding of key factors and mechanisms behind this technology is needed before its application on a commercial basis. The present manuscript, therefore, highlights the role of synthetic chelators in the remediation of Pb contaminated soils and also critically assesses the risks and limitations associated with this technology.

Saifullah; Muhammad Shahid; Muhammad Zia-Ur-Rehman; Muhammad Sabir; Hamaad Raza Ahmad

2015-01-01T23:59:59.000Z

368

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO2  

Science Journals Connector (OSTI)

These platforms make the case for (more) research on the conversion of CO2 into synthetic fuels as means to utilize CO2 and thereby mitigate its accumulation in the atmosphere. ... Stechel, E. B.; Miller, J. E.Re-energizing CO2 to fuels with the sun: Issues of efficiency, scale, and economics J. CO2 Util. ... Published analyses suggest these air capture systems may cost a few hundred dollars per ton of CO2, making it cost competitive with mainstream CO2 mitigation options like renewable energy, nuclear power, and carbon dioxide capture and storage from large CO2 emitting point sources. ...

Coen van der Giesen; René Kleijn; Gert Jan Kramer

2014-05-15T23:59:59.000Z

369

Structural algorithm to reservoir reconstruction using passive seismic data (synthetic example)  

Science Journals Connector (OSTI)

Using of passive seismic observations to detect a reservoir is a new direction of prospecting and exploration of hydrocarbons. In order to identify thin reservoir model we applied the modification of Gaussian elimination method in conditions of incomplete synthetic data. Because of the singularity of a matrix conventional method does not work. Therefore structural algorithm has been developed by analyzing the given model as a complex model. Numerical results demonstrate of its advantage compared with usual way of solution. We conclude that the gas reservoir is reconstructed by retrieving of the image of encasing shale beneath it.

2012-01-01T23:59:59.000Z

370

Synthetic Entries Into the Bicyclo[2.1.1]Hexane System  

E-Print Network [OSTI]

Rearrangements 1 B. Ramberg-Backlund Reaction # 11 a. Historical 11 b. Mechanism * .. 12 1. Proton Abstraction M 2* Halide Loss and Cyclisatlon . 14 3. Extrusion of Sulfur Dioxide 18 c. Stereochemistry # 19 d. Summary . 20 e. Synthetic Applications 21 C... 87 with Zinc Bromide 59 K. Reaction of Epoxide 87 with Lithium Perchlorate 60 L. Reaction of Epoxide 87 with Lithium Tetrafiuoroborato.. 60 M. Moplnone (108) 61 M. Enol Acetate of Nop!none, 109 61 0. Brominetion of Enol Acetate 103 61 (A...

May, Kenneth Dwight

1974-01-01T23:59:59.000Z

371

Synthetic Efforts Toward Palau'amine Doug Behenna, Ryan McFadden  

E-Print Network [OSTI]

Synthetic Efforts Toward Palau'amine Doug Behenna, Ryan McFadden Eric Ashley, Jenn Stockdill Cl H2N R1 R2 N N H N HN O NH2 H N NH H H OH NH2 Cl H2N R2 R1 R1 = R2 = H Palau'amine R1 = H, R2 = Br 4-Bromo Palau'amine R1 = R2 = Br Dibromo Palau'amine R1 = R2 = H Styloguanidine R1 = H, R2 = Br 3

Stoltz, Brian M.

372

A Monte Carlo synthetic-acceleration method for solving the thermal radiation diffusion equation  

SciTech Connect (OSTI)

We present a novel synthetic-acceleration-based Monte Carlo method for solving the equilibrium thermal radiation diffusion equation in three spatial dimensions. The algorithm performance is compared against traditional solution techniques using a Marshak benchmark problem and a more complex multiple material problem. Our results show that our Monte Carlo method is an effective solver for sparse matrix systems. For solutions converged to the same tolerance, it performs competitively with deterministic methods including preconditioned conjugate gradient and GMRES. We also discuss various aspects of preconditioning the method and its general applicability to broader classes of problems.

Evans, Thomas M., E-mail: evanstm@ornl.gov [Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831 (United States); Mosher, Scott W., E-mail: moshersw@ornl.gov [Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831 (United States); Slattery, Stuart R., E-mail: sslattery@wisc.edu [University of Wisconsin–Madison, 1500 Engineering Dr., Madison, WI 53716 (United States); Hamilton, Steven P., E-mail: hamiltonsp@ornl.gov [Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831 (United States)

2014-02-01T23:59:59.000Z

373

Investigation on Life-cycle Cost of Coal-based Synthetic Natural Gas (SNG)  

Science Journals Connector (OSTI)

Abstract Coal-based synthetic natural gas (SNG) is considered to be a promising alternative of clean energy, especially for urban uses, to response to the insufficient supply of natural gas in China, In this paper, life cycle costing is conducted for SNG in three main urban applications: heating boiler use, residential use, and transit bus use, respectively. The results show that the SNG is competitive for residential use, while it is not as cost- effective as expected when used for heating boiler use or transit bus use. Major shortcoming of SNG is from the large environmental emissions in the production stage.

Jun Zhang; Hengchong Li; Siyu Yang; Xiuxi Li; Yu Qian

2014-01-01T23:59:59.000Z

374

Self-assembly of synthetic and biological components in water using cucurbit[8]uril  

E-Print Network [OSTI]

. Current technology can successfully build assemblies from the bottom up, assembling complex architectures using such building blocks as DNA,14,24–26 peptides,27,28 saccharides,29,30 lipids,31–33 as well as synthetic polymer com- ponents.34–37 1900 1950... nature of an aqueous envir- onment are still being explored, and some notable examples are provided in Fig. 1.3. 3 Chapter 1 Introduction It is worthy of note that in each case, multiple non-covalent interactions work in concert, as is the case in nature...

Zayed, Jameel Majed

2012-02-07T23:59:59.000Z

375

A novel synthetic aperture technique for breast tomography with toroidal arrays  

SciTech Connect (OSTI)

Ultrasound is commonly used as an adjunct to mammography for diagnostic evaluation of suspicions arising from breast cancer screening. As an alternative to conventional sonography that uses hand-held transducers, toroidal array probes that encircle the breast immersed in a water bath have been investigated for ultrasound tomography. This paper introduces a new method for three-dimensional synthetic aperture diffraction tomography that maximizes the resolution in the scanning direction and provides quantitative reconstructions of the acoustic properties of the object. The method is validated by means of numerical simulations.

Huang, Lianjie [Los Alamos National Laboratory; Simonetti, Francesco [IMPERIAL COLLEGE

2009-01-01T23:59:59.000Z

376

The Mechanisms of Oxygen Reduction and Evolution Reactions in...  

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

Mechanisms of Oxygen Reduction and Evolution Reactions in Nonaqueous Lithium-Oxygen Batteries. The Mechanisms of Oxygen Reduction and Evolution Reactions in Nonaqueous...

377

Atomic-Scale Simulations of Cascade Overlap and Damage Evolution...  

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

Atomic-Scale Simulations of Cascade Overlap and Damage Evolution in Silicon Carbide. Atomic-Scale Simulations of Cascade Overlap and Damage Evolution in Silicon Carbide. Abstract:...

378

Fracture Evolution Following a Hydraulic Stimulation within an...  

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

Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir DOE Geothermal Peer Review...

379

HyDIVE (Hydrogen Dynamic Infrastructure and Vehicle Evolution...  

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

HyDIVE (Hydrogen Dynamic Infrastructure and Vehicle Evolution) Model Analysis HyDIVE (Hydrogen Dynamic Infrastructure and Vehicle Evolution) Model Analysis Presentation by NREL's...

380

An Energy Evolution:Alternative Fueled Vehicle Comparisons |...  

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

An Energy Evolution:Alternative Fueled Vehicle Comparisons An Energy Evolution:Alternative Fueled Vehicle Comparisons Presented at the U.S. Department of Energy Light Duty Vehicle...

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Vacuum energy and cosmological evolution  

E-Print Network [OSTI]

An expanding universe is not expected to have a static vacuum energy density. The so-called cosmological constant $\\Lambda$ should be an approximation, certainly a good one for a fraction of a Hubble time, but it is most likely a temporary description of a true dynamical vacuum energy variable that is evolving from the inflationary epoch to the present day. We can compare the evolving vacuum energy with a Casimir device where the parallel plates slowly move apart ("expand"). The total vacuum energy density cannot be measured, only the effect associated to the presence of the plates, and then also their increasing separation with time. In the universe there is a nonvanishing spacetime curvature $R$ as compared to Minkowskian spacetime that is changing with the expansion. The vacuum energy density must change accordingly, and we naturally expect $\\delta\\Lambda\\sim R\\sim H^2$. A class of dynamical vacuum models that trace such rate of change can be constructed. They are compatible with the current cosmological data, and conveniently extended can account for the complete cosmic evolution from the inflationary epoch till the present days. These models are very close to the $\\Lambda$CDM model for the late universe, but very different from it at the early times. Traces of the inherent vacuum dynamics could be detectable in our recent past.

Joan Sola

2014-03-03T23:59:59.000Z

382

Combined X-ray and neutron fibre diffraction studies of biological and synthetic polymers.  

SciTech Connect (OSTI)

The fibrous state is a natural one for polymer molecules which tend to assume regular helical conformations rather than the globular structures characteristic of many proteins. Fibre diffraction therefore has broad application to the study of a wide range of biological and synthetic polymers. The purpose of this paper is to illustrate the general scope of the method and in particular to demonstrate the impact of a combined approach involving both X-ray and neutron diffraction methods. While the flux of modern X-ray synchrotron radiation sources allows high quality datasets to be recorded with good resolution within a very short space of time, neutron studies can provide unique information through the ability to locate hydrogen or deuterium atoms that are often difficult or impossible to locate using X-ray methods. Furthermore, neutron fibre diffraction methods can, through the ability to selectively label specific parts of a structure, be used to highlight novel aspects of polymer structure that can not be studied using X-rays. Two examples are given. The first describes X-ray and neutron diffraction studies of conformational transitions in DNA. The second describes structural studies of the synthetic high-performance polymer poly(p-phenylene terephthalamide) (PPTA), known commercially as Kevlar{reg_sign} or Twaron{reg_sign}.

Parrot, I. M. [Institut Laue-Langevin (ILL); Urban, Volker S [ORNL; Gardner, K. H. [DuPont Experimental Station; Forsyth, V. T. [Institut Laue Langevin and Keele University

2005-04-01T23:59:59.000Z

383

Voyage of RepA protein from plasmid DNA replication through amyloid aggregation towards synthetic biology  

Science Journals Connector (OSTI)

Summary DNA replication of plasmids in Gram-negative bacteria has been an object of study at CIB-CSIC for nearly 30 years. We have been focused on the enterobacterial antibiotic resistance factor R1 (1981–1992) and the pPS10 replicon from the phytopathogen Pseudomonas savastanoi (since 1984). Our group has used multidisciplinary (genetic, biochemical and biophysical-structural) approaches to unravel the molecular mechanism for the activation of RepA. Rep-type plasmidic proteins are either transcriptional repressors or replication initiators/inhibitors, depending on their association state (dimers vs. monomers) and targeting of alternative (operator or iteron) DNA sites. We discovered that allosteric DNA-binding remodels the structure of RepA N-terminal domain (WH1), transforming ?-helical portions into ?-strands. This precisely tunes the distances between the DNA reading heads in WH1 and the C-terminal domain (WH2), to match the target operator or iteron sequences. We have recently moved into engineering such structural transformation in RepA-WH1 to build-up synthetic protein devices that allow for customized ligand (DNA)-promoted amyloidogenesis. Our basic studies on plasmid DNA replication are relevant for settling the bases of a minimalist bacterial model to tackle transmissible amyloid proteinopathies and are a valuable tool for bottom-up synthetic biology.

Rafael Giraldo; María Elena Fernández-Tresguerres

2010-01-01T23:59:59.000Z

384

Cytotoxicity of synthetic cannabinoids on primary neuronal cells of the forebrain: the involvement of cannabinoid CB{sub 1} receptors and apoptotic cell death  

SciTech Connect (OSTI)

The abuse of herbal products containing synthetic cannabinoids has become an issue of public concern. The purpose of this paper was to evaluate the acute cytotoxicity of synthetic cannabinoids on mouse brain neuronal cells. Cytotoxicity induced by synthetic cannabinoid (CP-55,940, CP-47,497, CP-47,497-C8, HU-210, JWH-018, JWH-210, AM-2201, and MAM-2201) was examined using forebrain neuronal cultures. These synthetic cannabinoids induced cytotoxicity in the forebrain cultures in a concentration-dependent manner. The cytotoxicity was suppressed by preincubation with the selective CB{sub 1} receptor antagonist AM251, but not with the selective CB{sub 2} receptor antagonist AM630. Furthermore, annexin-V-positive cells were found among the treated forebrain cells. Synthetic cannabinoid treatment induced the activation of caspase-3, and preincubation with a caspase-3 inhibitor significantly suppressed the cytotoxicity. These synthetic cannabinoids induced apoptosis through a caspase-3-dependent mechanism in the forebrain cultures. Our results indicate that the cytotoxicity of synthetic cannabinoids towards primary neuronal cells is mediated by the CB{sub 1} receptor, but not by the CB{sub 2} receptor, and further suggest that caspase cascades may play an important role in the apoptosis induced by these synthetic cannabinoids. In conclusion, excessive synthetic cannabinoid abuse may present a serious acute health concern due to neuronal damage or deficits in the brain. - Highlights: • Synthetic cannabinoids (classical cannabinoids, non-classical cannabinoids, and aminoalkylindole derivatives) induce cytotoxicity in mouse forebrain cultures. • Synthetic cannabinoid-induced cytotoxicity towards forebrain cultures is mediated by the CB{sub 1} receptor, but not by the CB{sub 2} receptor, and involves caspase-dependent apoptosis. • A high concentration of synthetic cannabinoids may be toxic to neuronal cells that express CB{sub 1} receptors.

Tomiyama, Ken-ichi; Funada, Masahiko, E-mail: mfunada@ncnp.go.jp

2014-01-01T23:59:59.000Z

385

Evolution and statistics of biological regulatory networks  

E-Print Network [OSTI]

In this thesis, I study the process of evolution of the gene regulatory network in Escherichia coli. First, I characterize the portion of the network that has been documented, and then I simulate growth of the network. In ...

Chandalia, Juhi Kiran, 1979-

2005-01-01T23:59:59.000Z

386

General conditions for quantum adiabatic evolution  

SciTech Connect (OSTI)

Adiabaticity occurs when, during its evolution, a physical system remains in the instantaneous eigenstate of the Hamiltonian. Unfortunately, existing results, such as the quantum adiabatic theorem based on a slow down evolution [H({epsilon}t),{epsilon}{yields}0], are insufficient to describe an evolution driven by the Hamiltonian H(t) itself. Here we derive general criteria and exact bounds, for the state and its phase, ensuring an adiabatic evolution for any Hamiltonian H(t). As a corollary, we demonstrate that the commonly used condition of a slow Hamiltonian variation rate, compared to the spectral gap, is indeed sufficient to ensure adiabaticity but only when the Hamiltonian is real and nonoscillating (for instance, containing exponential or polynomial but no sinusoidal functions)

Comparat, Daniel [Laboratoire Aime Cotton, CNRS, Universite Paris-Sud, Batiment 505, 91405 Orsay (France)

2009-07-15T23:59:59.000Z

387

Evolution of transcriptional enhancers and animal diversity  

Science Journals Connector (OSTI)

...already found in the regulatory code are perplexing...the subject: the review Conserved expression without conserved regulatory sequence: the more...JH . 2013 Cis-regulatory change associated with snake body plan evolution. Proc...

2013-01-01T23:59:59.000Z

388

Evolution of US air cargo productivity  

E-Print Network [OSTI]

This thesis provides an overview of the US air cargo industry since airline deregulation in 1978, including a brief overview of the historical evolution of air cargo transport in the US from the early 1900s until the late ...

Donatelli, David J

2012-01-01T23:59:59.000Z

389

Ammonia evolution during oil shale pyrolysis  

Science Journals Connector (OSTI)

Ammonia evolution during oil shale pyrolysis ... Parallel pyrolytic studies were carried out on an immature, ultralaminae-rich, type I kerogen (Göynük oil shale kerogen) and a related algaenan (isolated from the extant green microalga Scenedesmus communis). ...

Myongsook S. Oh; Robert W. Taylor; Thomas T. Coburn; Richard W. Crawford

1988-01-01T23:59:59.000Z

390

Workshop Reports Understanding Paleoclimate and Human Evolution  

E-Print Network [OSTI]

, involving research in anthropology, archaeology, human genetics and genomics, and the earth sciences resolved paleoenvironmental information. This concept is not new. Almost thirty years ago, the U.SWorkshop Reports Understanding Paleoclimate and Human Evolution Through the Hominin Sites

Reiners, Peter W.

391

Speculations on the evolution of awareness  

Science Journals Connector (OSTI)

The "attention schema" theory provides one possible account of the biological basis of consciousness, tracing the evolution of awareness through steps from the advent of selective signal enhancement about half a billion years ago to the top-down control ...

Michael S. A. Graziano

2014-06-01T23:59:59.000Z

392

Metromorphosis : evolution on the urban island  

E-Print Network [OSTI]

Cities are very much alive. Like islands, they provide a natural testing ground for evolution. With more than half of the world's population living in urban areas now, the influence cities have on the planet's life is ...

Vezina, Kenrick (Kenrick Freitas)

2011-01-01T23:59:59.000Z

393

Covalent Structure of the DNA-DNA Interstrand Cross-Link Formed by Reductively Activated FR66979 in Synthetic DNA Duplexes  

Science Journals Connector (OSTI)

Covalent Structure of the DNA-DNA Interstrand Cross-Link Formed by Reductively Activated FR66979 in Synthetic DNA Duplexes ...

Huifang Huang; Tom K. Pratum; Paul B. Hopkins

1994-04-01T23:59:59.000Z

394

High-resolution NMR study of a synthetic DNA-RNA hybrid dodecamer containing the consensus Pribnow promoter sequence: d(CGTTATAATGCG).cntdot.r(CGCAUUAUAACG)  

Science Journals Connector (OSTI)

High-resolution NMR study of a synthetic DNA-RNA hybrid dodecamer containing the consensus Pribnow promoter sequence: d(CGTTATAATGCG).cntdot.r(CGCAUUAUAACG) ...

Shan Ho Chou; Peter Flynn; Brian Reid

1989-03-01T23:59:59.000Z

395

Solution nebulization into a low-power argon microwave-induced plasma for atomic emission spectrometry: study of synthetic ocean water  

Science Journals Connector (OSTI)

Solution nebulization into a low-power argon microwave-induced plasma for atomic emission spectrometry: study of synthetic ocean water ...

Kin C. Ng; Wei Lung Shen

1986-08-01T23:59:59.000Z

396

US Synthetic Corp (TRL 4 Component)- The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines  

Broader source: Energy.gov [DOE]

US Synthetic Corp (TRL 4 Component) - The Development of Open, Water Lubricated Polycrystalline Diamond Thrust Bearings for use in Marine Hydrokinetic (MHK) Energy Machines

397

Review and discussion of the development of synthetic aperture focusing technique for ultrasonic testing (SAFT-UT)  

SciTech Connect (OSTI)

The development and capabilities of synthetic aperture focusing techniques for ultrasonic testing (SAFT-UT) are presented. The purpose of SAFT-UT is to produce high-resolution images of the interior of opaque objects. The goal of this work is to develop and implement methods which can be used to detect and to quantify the extent of defects and cracks in critical components of nuclear reactors (pressure vessels, primary piping systems, and nozzles). This report places particular emphasis upon the practical experimental results that have been obtained using SAFT-UT as well as the theoretical background that underlies synthetic aperture focusing. A discussion regarding high-speed and real-time implementations of two- and three-dimensional synthetic aperture focusing is also presented.

Busse, L.J.; Collins, H.D.; Doctor, S.R.

1984-03-01T23:59:59.000Z

398

Galactic evolution: a survey of recent progress  

SciTech Connect (OSTI)

Current observational knowledge bearing on the evolution of elliptical and disk galaxies is reviewed. Particular emphasis is placed on identifying the factors that appear common to all galaxies of a particular type as opposed to those that seem to depend on environmental conditions. The success of various classes of galactic formation and evolution models used to confront these data is evaluated. 92 references, 3 figures.

Strom, K.M.; Strom, S.E.

1982-05-07T23:59:59.000Z

399

Cancer evolution: mathematical models and computational inference  

E-Print Network [OSTI]

and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland; E-mail: niko.beerenwinkel@bsse.ethz.ch. Abstract.— Cancer is a somatic evolutionary process characterized by the accumulation of mutations, which contribute to tumor growth, clinical... Version dated: October 7, 2014 Cancer evolution Cancer evolution: mathematical models and computational inference Niko Beerenwinkel1,2, Roland F Schwarz3, Moritz Gerstung4, Florian Markowetz5 1Department of Biosystems Science and Engineering, ETH...

Beerenwinkel, Niko; Schwarz, Roland F.; Gerstung, Moritz; Markowetz, Florian

2014-10-07T23:59:59.000Z

400

On the evaluation of synthetic and natural ilmenite using syngas as fuel in chemical-looping combustion (CLC)  

Science Journals Connector (OSTI)

Chemical-looping combustion (CLC) is a combustion technique where the CO2 produced is inherently separated from the rest of the flue gases with a considerably low energy penalty. For this reason, CLC has emerged as one of the more attractive options to capture CO2 from fossil fuel combustion. When applying CLC with solid fuels, the use of a low cost oxygen carrier is highly important, and one such low cost oxygen carrier is the mineral ilmenite. The current work investigates the reactivity of several ilmenites, some which are synthetically produced by freeze granulation and two natural minerals, one Norwegian ilmenite and one South African ilmenite. A laboratory fluidized bed reactor made of quartz was used to simulate a two reactor CLC system by alternating the reduction and oxidation phase. The fuel was syngas containing 50% CO and 50% H2. A mixture of 6 g of ilmenite with 9 g inert quartz of diameter 125–180 ?m was exposed to a flow of 900 mLn/min syngas in the reduction phase. During the oxidation phase, a 900 mLn/min flow of 10% O2 diluted in N2 was used. The experimental results showed that all ilmenites give higher conversion of H2 than of CO. Generally, synthetic ilmenites have better CO and H2 conversion than natural ilmenites and synthetic ilmenites prepared with an excess of Fe generally showed higher total conversion of CO than synthetic ilmenites with an excess of Ti. Most synthetic ilmenites and the Norwegian ilmenite showed good fluidization properties during the experiments. However, for two of the synthetically produced materials, and for the South African ilmenite, particle agglomerations were visible at the end of the experiment.

Muhammad Mufti Azis; Erik Jerndal; Henrik Leion; Tobias Mattisson; Anders Lyngfelt

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Chapter 11 - Exploiting Synthetic Lethal Interactions Between DNA Damage Signaling, Checkpoint Control, and p53 for Targeted Cancer Therapy  

Science Journals Connector (OSTI)

DNA damage signaling and checkpoint control pathways are among the most commonly mutated networks in human tumors. Emerging data suggest that synthetic lethal interactions between mutated oncogenes or tumor suppressor genes with molecules involved in the DNA damage response and DNA repair pathways can be therapeutically exploited to preferentially kill cancer cells. In this review, we discuss the concept of synthetic lethality with a focus on p53, a commonly lost tumor suppressor gene, in the context of DNA damage signaling. We describe several recent examples in which this concept was successfully applied to target tumor cells in culture or in mouse models, as well as in human cancer patients.

Sandra Morandell; Michael B. Yaffe

2012-01-01T23:59:59.000Z

402

Total syntheses of ?-lactone containing natural products: I. total synthesis of belactosin C II. synthetic studies toward spongiolactone  

E-Print Network [OSTI]

specificity. The synthetic efforts toward these have been reviewed recently. 11 The first total synthesis of salinosporamide A (1.9) was also described by Corey (Scheme 1.6). 12 After cyclization of the amide 1.36, an oxazoline allowing for alkylation... specificity. The synthetic efforts toward these have been reviewed recently. 11 The first total synthesis of salinosporamide A (1.9) was also described by Corey (Scheme 1.6). 12 After cyclization of the amide 1.36, an oxazoline allowing for alkylation...

Cho, Sung Wook

2009-05-15T23:59:59.000Z

403

The Evolution of Nuclear Power Plant Design: Synopsis  

Science Journals Connector (OSTI)

1 April 1961 research-article The Evolution of Nuclear Power Plant Design: Synopsis Christopher Hinton

1961-01-01T23:59:59.000Z

404

Backbone-induced effects in the charge transport efficiency of synthetic DNA  

Science Journals Connector (OSTI)

We report on a theoretical study pointing out the fundamental role of the backbone energetics in the charge transfer efficiency of polyG–polyC and polyA–polyT chains. The double-strand DNA (ds-DNA) molecules are modelled in terms of a single channel effective Hamiltonian. By introducing a two-step renormalization scheme analytical results for the energy spectrum and transmission coefficient are derived, and current–voltage characteristics are numerically investigated. Significant modulations of the main I–V features (voltage threshold, current amplitude) are reported and their physical origin is traced back to backbone-induced electronic effects. These results open new perspectives for experimental work aimed at controlling the charge transfer efficiency in nanodevices based on synthetic DNA.

Enrique Maciá; Stephan Roche

2006-01-01T23:59:59.000Z

405

Synthetic Catalysts for CO2 Storage: Catalytic Improvement of Solvent Capture Systems  

SciTech Connect (OSTI)

IMPACCT Project: LLNL is designing a process to pull CO2 out of the exhaust gas of coal-fired power plants so it can be transported, stored, or utilized elsewhere. Human lungs rely on an enzyme known as carbonic anhydrase to help separate CO2 from our blood and tissue as part of the normal breathing process. LLNL is designing a synthetic catalyst with the same function as this enzyme. The catalyst can be used to quickly capture CO2 from coal exhaust, just as the natural enzyme does in our lungs. LLNL is also developing a method of encapsulating chemical solvents in permeable microspheres that will greatly increase the speed of binding of CO2. The goal of the project is an industry-ready chemical vehicle that can withstand the harsh environments found in exhaust gas and enable new, simple process designs requiring less capital investment.

None

2010-08-15T23:59:59.000Z

406

Augmenting real data with synthetic data: an application in assessing radio-isotope identification algorithms  

SciTech Connect (OSTI)

The performance of Radio-Isotope Identification (RIID) algorithms using gamma spectroscopy is increasingly important. For example, sensors at locations that screen for illicit nuclear material rely on isotope identification to resolve innocent nuisance alarms arising from naturally occurring radioactive material. Recent data collections for RIID testing consist of repeat measurements for each of several scenarios to test RIID algorithms. Efficient allocation of measurement resources requires an appropriate number of repeats for each scenario. To help allocate measurement resources in such data collections for RIID algorithm testing, we consider using only a few real repeats per scenario. In order to reduce uncertainty in the estimated RIID algorithm performance for each scenario, the potential merit of augmenting these real repeats with realistic synthetic repeats is also considered. Our results suggest that for the scenarios and algorithms considered, approximately 10 real repeats augmented with simulated repeats will result in an estimate having comparable uncertainty to the estimate based on using 60 real repeats.

Burr, Tom L [Los Alamos National Laboratory; Hamada, Michael [Los Alamos National Laboratory; Graves, Todd [Los Alamos National Laboratory; Myers, Steve [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

407

Low-temperature structural phase transition in synthetic libethenite Cu2PO4OH  

Science Journals Connector (OSTI)

Low-temperature structural properties of the synthetic mineral libethenite Cu2PO4OH were investigated by single-crystal X-ray diffraction, synchrotron X-ray powder diffraction, specific heat measurements, and Raman spectroscopy. A second-order structural phase transition from the Pnnm symmetry (a=8.0553(8) Å, b=8.3750(9) Å, c=5.8818(6) Å at 180 K) to the P21/n symmetry (a=8.0545(8) Å, b=8.3622(9) Å, c=5.8755(6) Å, ?=90.0012(15) at 120 K) was found at 160 K during cooling. At 120 K, the monoclinic angle is 90.0012(15) from single crystal X-ray data vs 90.083(1) from powder X-ray diffraction data. The P21/n–to–Pnnm transition may be a general feature of the adamite-type compounds, M2XO4OH.

Alexei A. Belik; Pan?e Naumov; Jungeun Kim; Shunsuke Tsuda

2011-01-01T23:59:59.000Z

408

Corrosion resistance of alloy steels in media encountered in manufacture of synthetic naphthenic acids  

SciTech Connect (OSTI)

The behavior of alloy steels in product streams in the hydrogenation of C/sub 9/ alkylbenzoic acids (ABA) to synthetic naphthenic acids in a continuous-flow pilot unit was investigated in static corrosion test apparatus, in dynamic corrosion test apparatus, and in a glass flask with a reflux condenser. Test conditions and results are presented. 12Kh18N10T and 10Kh17N13M2T steels were corrosion-resistant and 08Kh21N5T and 07Kh16N6 steels were subject to nonuniform general corrosion in the stage of ABA hydrogenation at temperatures up to 200 C and pressures up to 10MPa.

Kuznetsov, V.A.; Kartashevskii, A.I.; Solov'ev, A.M.; Khanbikova, N.A.

1988-03-01T23:59:59.000Z

409

A model for forming airborne synthetic aperture radar images of underground targets  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) from an airborne platform has been proposed for imaging targets beneath the earth`s surface. The propagation of the radar`s energy within the ground, however, is much different than in the earth`s atmosphere. The result is signal refraction, echo delay, propagation losses, dispersion, and volumetric scattering. These all combine to make SAR image formation from an airborne platform much more challenging than a surface imaging counterpart. This report treats the ground as a lossy dispersive half-space, and presents a model for the radar echo based on measurable parameters. The model is then used to explore various imaging schemes, and image properties. Dynamic range is discussed, as is the impact of loss on dynamic range. Modified window functions are proposed to mitigate effects of sidelobes of shallow targets overwhelming deeper targets.

Doerry, A.W.

1994-01-01T23:59:59.000Z

410

Environmentally based siting assessment for synthetic-liquid-fuels facilities. Final report  

SciTech Connect (OSTI)

A detailed assessment of the major environmental constraints to siting a synthetic fuels industry and the results of that assessment are used to determine on a regional basis the potential for development of such an industry with minimal environmental conflicts. Secondly, the ability to mitigate some of the constraining impacts through alternative institutional arrangements, especially in areas that are judged to have a low development potential is also assessed. Limitations of the study are delineated, but specifically, the study is limited geographically to well-defined boundaries that include the prime coal and oil shale resource areas. The critical factors used in developing the framework are air quality, water availability, socioeconomic capacity, ecological sensitivity, environmental health, and the management of Federally owned lands. (MCW)

None

1980-01-01T23:59:59.000Z

411

3 - Preparation of feedstocks for gasification for synthetic liquid fuel production  

Science Journals Connector (OSTI)

Abstract Gasification has been considered as a potential thermo-chemical method of conversion to effectively utilize the carbon (organic content) present in the feedstock. Preparation and handling methods of some of the potential feedstocks (i.e., coal, petroleum residue, biomass, and municipal solid waste (MSW) to produce the synthetic gas) for various applications are discussed. The pre-treatment process for feedstock constitutes the steps that must be imposed on the raw material in preparation for use in a gasification reactor. The properties of fuel that influence the gasification are energy content, moisture content, particle size and distribution, form of the fuel, bulk density of the fuel, volatile matter content, ash content, and composition and reactivity of the fuel.

B. Bhavya; R. Singh; T. Bhaskar

2015-01-01T23:59:59.000Z

412

Low-Temperature Heat Capacity and Localized Vibrational Modes in Natural and Synthetic Tetrahedrites  

SciTech Connect (OSTI)

The heat capacity of natural (Cu12-x (Fe, Zn, Ag)x(Sb, As)4S13) and synthetic (Cu12-xZnxSb4S13 with x=0, 1, 2) tetrahedrite compounds was measured between 2K and 380K. It was found that the temperature dependence of the heat capacity can be described using a Debye term and three Einstein oscillators with characteristic temperatures that correspond to energies of ~1.0 meV, ~2.8 meV and ~8.4 meV. The existence of localized vibration modes, which are assigned to the displacements of the trigonally coordinated Cu atoms in the structure, is discussed in the context of anharmonicity and its effect on the low lattice thermal conductivity exhibited by these compounds.

Lara-Curzio, Edgar [ORNL] [ORNL; May, Andrew F [ORNL] [ORNL; Delaire, Olivier A [ORNL] [ORNL; McGuire, Michael A [ORNL] [ORNL; Lu, Xu [Michigan State University] [Michigan State University; Li, Cheng-Yun [Michigan State University] [Michigan State University; Case, Eldon D [Michigan State University, East Lansing] [Michigan State University, East Lansing; Morelli, Donold [Michigan State University, East Lansing] [Michigan State University, East Lansing

2014-01-01T23:59:59.000Z

413

Protective immunity to H7N9 influenza viruses elicited by synthetic DNA vaccine  

Science Journals Connector (OSTI)

Abstract Despite an intensive vaccine program influenza infections remain a major health problem, due to the viruses’ ability to change its envelope glycoprotein hemagglutinin (HA), through shift and drift, permitting influenza to escape protection induced by current vaccines or natural immunity. Recently a new variant, H7N9, has emerged in China causing global concern. First, there have been more than 130 laboratory-confirmed human infections resulting in an alarmingly high death rate (32.3%). Second, genetic changes found in H7N9 appear to be associated with enabling avian influenza viruses to spread more effectively in mammals, thus transmitting infections on a larger scale. Currently, no vaccines or drugs are effectively able to target H7N9. Here, we report the rapid development of a synthetic consensus DNA vaccine (pH7HA) to elicit potent protective immunity against the H7N9 viruses. We show that pH7HA induces broad antibody responses that bind to divergent \\{HAs\\} from multiple new members of the H7N9 family. These antibody responses result in high-titer HAI against H7N9. Simultaneously, this vaccine induces potent polyfunctional effector CD4 and CD8T cell memory responses. Animals vaccinated with pH7HA are completely protected from H7N9 virus infection and any morbidity associated with lethal challenge. This study establishes that this synthetic consensus DNA vaccine represents a new tool for targeting emerging infection, and more importantly, its design, testing and development into seed stock for vaccine production in a few days in the pandemic setting has significant implications for the rapid deployment of vaccines protecting against emerging infectious diseases.

Jian Yan; Daniel O. Villarreal; Trina Racine; Jaemi S. Chu; Jewell N. Walters; Matthew P. Morrow; Amir S. Khan; Niranjan Y. Sardesai; J. Joseph Kim; Gary P. Kobinger; David B. Weiner

2014-01-01T23:59:59.000Z

414

Analysis of synthetic cannabinoids in herbal blends by means of nano-liquid chromatography  

Science Journals Connector (OSTI)

In this study, a rapid and simultaneous separation of 12 synthetic cannabinoids and ?9-tetrahydrocannabinol (?9-THC) in herbal blends was obtained by means of nano-liquid chromatography (nano-LC). The nano-LC experiments were performed in a 100 ?m i.d. capillary column packed with Cogent® bidentate C18 silica particles for 25.0 cm. All compounds were resolved using an isocratic elution mode in less than 30 min. A mobile phase containing ACN/MeOH/H2O/formic acid 69/5/25/1 (v/v/v/v) was employed for the chromatographic separation. The developed analytical method was validated in terms of precision, linearity, sensitivity and accuracy. Under optimal nano-LC–UV conditions, the resulting RSD percentages for intra-day and inter-day repeatability, related to retention time and peak area, were below 2.98 and 6.40%, respectively. Limits of detection and quantification were 0.2 and 0.5 ?g/mL, respectively, for all the studied compounds. Linearity was assessed in the concentration range of interest for all analytes with determination coefficients r2 ? 0.9975. The method was then applied to the determination of synthetic cannabinoids in herbal blends. Quantitative analyses of the cannabimimetic compounds in six products showed that there was a wide difference in the concentration of the studied compounds among different products. Further, the nano-LC system was coupled with a mass spectrometer measuring the MS and MS–MS spectra to unequivocally identify the cannabinoids present in smoking mixtures.

Gustavo Merola; Zeineb Aturki; Giovanni D’Orazio; Rossella Gottardo; Teodora Macchia; Franco Tagliaro; Salvatore Fanali

2012-01-01T23:59:59.000Z

415

Mapping behavioural evolution onto brain evolution: the strategic roles of conserved organization in individuals and species  

Science Journals Connector (OSTI)

...Bertossa Mapping behavioural evolution onto brain evolution: the strategic roles of conserved...The pattern of individual variation in brain component structure in pigs, minks and...mechanism by which both growing and evolving brains defend basic sensory, motor and homeostatic...

2011-01-01T23:59:59.000Z

416

Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio and Richard M. Murray  

E-Print Network [OSTI]

Design of insulating devices for in vitro synthetic circuits Elisa Franco, Domitilla Del Vecchio as an insulating device. This circuit is composed of nucleic acids, which can be designed to interact according to interconnect different transcriptional modules in a large network, preserving their functionality. Insulation

Murray, Richard M.

417

Evaluation of and Suggested Improvements to the WSM6 Microphysics in WRF- ARW Using Synthetic and Observed GOES-13 Imagery  

SciTech Connect (OSTI)

Synthetic satellite imagery can be employed to evaluate simulated cloud fields. Past studies have revealed that the Weather Research and Forecasting (WRF) WRF Single-Moment 6-class (WSM6) microphysics in WRF-ARW produces less upper level ice clouds within synthetic images compared to observations. Synthetic Geostationary Operational Environmental Satellite (GOES)-13 imagery at 10.7 ?m of simulated cloud fields from the 4 km National Severe Storms Laboratory (NSSL) WRF-ARW is compared to observed GOES-13 imagery. Histograms suggest that too few points contain upper level simulated ice clouds. In particular, side-by-side examples are shown of synthetic and observed convective anvils. Such images illustrate the lack of anvil cloud associated with convection produced by the NSSL WRF-ARW. A vertical profile of simulated hydrometeors suggests that too much cloud water mass may be converted into graupel mass, effectively reducing the main source of ice mass in a simulated anvil. Further, excessive accretion of ice by snow removes ice from an anvil by precipitation settling. Idealized sensitivity tests reveal that a 50% reduction of the conversion of cloud water mass to graupel and a 50% reduction of the accretion rate of ice by snow results in a significant increase in anvil ice of a simulated storm. Such results provide guidance as to which conversions could be reformulated, in a more physical manner, to increase simulated ice mass in the upper troposphere.

Grasso, Lewis; Lindsey, Daniel T.; Lim, Kyo-Sun; Clark, Adam; Bikos, Dan; Dembek, Scott R.

2014-10-01T23:59:59.000Z

418

Symbology development for a 3D conformal synthetic vision helmet-mounted display for helicopter operations in degraded visual environment  

Science Journals Connector (OSTI)

To increase situation awareness for helicopter pilots in poor visibility symbology for a helmet-mounted display was developed. The symbology comprises the conformal presentation of obstacles, route information and threat areas. In an online survey 48 ... Keywords: conformal symbology, degraded visual environment, helicopter operations, helmet-mounted display, synthetic vision systems

Patrizia Knabl; Helmut Többen

2013-07-01T23:59:59.000Z

419

Earth Planets Space, 54, 11471152, 2002 Frictional behavior of synthetic gouge-bearing faults under the operation of  

E-Print Network [OSTI]

experiments on halite gouge at atmospheric pressure and room temperature in the presence of methanol. Although there is a difference in velocity dependence of strength between quartz and halite gouges on synthetic halite gouge at room temperature and atmospheric pressure in the presence of methanol

Kanagawa, Kyuichi

420

An increasing number of synthetic compounds have been shown to facilitate ion and polar molecule transport across  

E-Print Network [OSTI]

transport of ions and polar molecules across biological membranes is essential for normal cell function synthetic transporters shown to be active in both model bilayers and cellular membranes. Mechanism of ion simulations of unassisted Na+ and Cl­ ion transport across a bilayer membrane. As the ion enters the outer

Smith, Bradley D.

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Geophys.J. Int. (1995) 123,449-470 A new method for computing highly accurate DSM synthetic  

E-Print Network [OSTI]

Geophys.J. Int. (1995) 123,449-470 A new method for computing highly accurate DSM synthetic calculated using the direct solution method (DSM) (Geller et al. 1990; Hara, Tsuboi & Geller 1991; Geller the methods of this paper to numerical methods other than the DSM. Key words: direct solution method (DSM

Takeuchi, Nozomu

422

An inversion technique to retrieve the source of a tracer with an application to synthetic satellite measurements  

Science Journals Connector (OSTI)

...same as that of the satellite. Similarly for the...resolution for both model and satellite is taken as 0.25 for...Centre for Medium-range Weather Forecast (ECMWF...sources and sinks using satellite data: a synthetic inter-comparison...methods for numerical weather prediction. Q. J...

2007-01-01T23:59:59.000Z

423

Biological Hydrogen Production Using Synthetic Wastewater Biotin and glutamic acid are not required for biological hydrogen production.  

E-Print Network [OSTI]

Biological Hydrogen Production Using Synthetic Wastewater Conclusion ·Biotin and glutamic acid are not required for biological hydrogen production. ·MgSO4 .7H2O is a required nutrient, but hydrogen production work should focus on minimizing the lag time in biological hydrogen production, by varying nutrient

Barthelat, Francois

424

REDUCTION OF VIBRATION-INDUCED ARTIFACTS IN SYNTHETIC-APERTURE-RADAR IMAGERY USING THE FRACTIONAL FOURIER TRANSFORM  

E-Print Network [OSTI]

REDUCTION OF VIBRATION-INDUCED ARTIFACTS IN SYNTHETIC-APERTURE-RADAR IMAGERY USING THE FRACTIONAL of objects exhibit- ing low-level vibrations are accompanied by localized arti- facts, or ghost targets to the non-stationary nature of the returned signals from vibrating objects. Re- cently, a method based

Santhanam, Balu

425

Three dimensional fabric evolution of sheared sand  

SciTech Connect (OSTI)

Granular particles undergo translation and rolling when they are sheared. This paper presents a three-dimensional (3D) experimental assessment of fabric evolution of sheared sand at the particle level. F-75 Ottawa sand specimen was tested under an axisymmetric triaxial loading condition. It measured 9.5 mm in diameter and 20 mm in height. The quantitative evaluation was conducted by analyzing 3D high-resolution x-ray synchrotron micro-tomography images of the specimen at eight axial strain levels. The analyses included visualization of particle translation and rotation, and quantification of fabric orientation as shearing continued. Representative individual particles were successfully tracked and visualized to assess the mode of interaction between them. This paper discusses fabric evolution and compares the evolution of particles within and outside the shear band as shearing continues. Changes in particle orientation distributions are presented using fabric histograms and fabric tensor.

Hasan, Alsidqi; Alshibli, Khalid (UWA)

2012-10-24T23:59:59.000Z

426

Asymmetric cyclic evolution in polymerised cosmology  

SciTech Connect (OSTI)

The dynamical systems methods are used to study evolution of the polymerised scalar field cosmologies with the cosmological constant. We have found all evolutional paths admissible for all initial conditions on the two-dimensional phase space. We have shown that the cyclic solutions are generic. The exact solution for polymerised cosmology is also obtained. Two basic cases are investigated, the polymerised scalar field and the polymerised gravitational and scalar field part. In the former the division on the cyclic and non-cyclic behaviour is established following the sign of the cosmological constant. The value of the cosmological constant is upper bounded purely from the dynamical setting.

Hrycyna, Orest [Department of Theoretical Physics, Faculty of Philosophy, The John Paul II Catholic University of Lublin, Al. Rac?awickie 14, 20-950 Lublin (Poland); Mielczarek, Jakub; Szyd?owski, Marek, E-mail: hrycyna@kul.lublin.pl, E-mail: jakub.mielczarek@uj.edu.pl, E-mail: uoszydlo@cyf-kr.edu.pl [Astronomical Observatory, Jagiellonian University, Orla 171, 30-244 Kraków (Poland)

2009-12-01T23:59:59.000Z

427

Mass extinctions vs. uniformitarianism in biological evolution  

SciTech Connect (OSTI)

It is usually believed that Darwin`s theory leads to a smooth gradual evolution, so that mass extinctions must be caused by external shocks. However, it has recently been argued that mass extinctions arise from the intrinsic dynamics of Darwinian evolution. Species become extinct when swept by intermittent avalanches propagating through the global ecology. These ideas are made concrete through studies of simple mathematical models of co-evolving species. The models exhibit self-organized criticality and describe some general features of the extinction pattern in the fossil record.

Bak, P.; Paczuski, M.

1995-12-31T23:59:59.000Z

428

Cosmological Evolution of Pilgrim Dark Energy  

E-Print Network [OSTI]

We study pilgrim dark energy model by taking IR cut-offs as particle and event horizons as well as conformal age of the universe. We derive evolution equations for fractional energy density and equation of state parameters for pilgrim dark energy. The phantom cosmic evolution is established in these scenarios which is well supported by the cosmological parameters such as deceleration parameter, statefinder parameters and phase space of $\\omega_\\vartheta$ and $\\omega'_\\vartheta$. We conclude that the consistent value of parameter $\\mu$ is $\\mu<0$ in accordance with the current Planck and WMAP$9$ results.

Sharif, M

2015-01-01T23:59:59.000Z

429

Crystallization, crystal-structure refinement, and IR spectroscopy of a synthetic hexahydroborite analog  

SciTech Connect (OSTI)

The crystal structure of the hexahydroborite analog Ca[B(OH){sub 4}]{sub 2} {center_dot} 2H{sub 2}O (a = 7.9941(3) Angstrom-Sign , b = 6.6321(2) Angstrom-Sign , c = 7.9871(3) Angstrom-Sign , {beta} = 104.166(4) Degree-Sign , V = 410.58(3) Angstrom-Sign {sup 3}, sp. gr. P2/c, Z = 2, {rho}{sub calc} = 1.891 g/cm{sup 3}; Xcalibur S CCD automated diffractometer, 1196 reflections with I > 2{sigma}(I), {lambda}MoK{sub {alpha}}), which was synthesized by the hydrothermal method via the recrystallization of calciborite CaB{sub 2}O{sub 4} (M) in the M - B{sub 2}O{sub 3} - H{sub 2}O system (t = 250 Degree-Sign C and P = 70-80 atm), was refined by the least-squares method with anisotropic displacement parameters (H atoms were located; R{sub 1} = 0.0260). The structure of synthetic hexahydroborite consists of infinite columns running along the c axis. The columns are formed by Ca polyhedra linked together and to [B(OH){sub 4}] orthotetrahedra by sharing edges. Along the two other axes, the translationally equivalent columns are linked only by hydrogen bonds. The presence of a stronger bond between the discrete (Ca-B-O) columns along the shortest (b = 6.6 Angstrom-Sign ) axis accounts for the possibility of the shift of the columns by 1/2T{sub b} and the formation of the second modification of Ca[B(OH){sub 4}]{sub 2} {center_dot} 2H{sub 2}O. The crystals of synthetic hexahydroborite were studied by IR spectroscopy. A crystal-chemical analysis was performed for a series of natural metaborates with the general formula CaB{sub 2}O{sub 4} {center_dot} nH{sub 2}O (CaO: B{sub 2}O{sub 3} = 1: 1, n = 0-6), including calciborite CaB{sub 2}O{sub 4} and hexahydroborite CaB{sub 2}O{sub 4} {center_dot} 6H{sub 2}O as the end members.

Yamnova, N. A., E-mail: natalia-yamnova@yandex.ru; Borovikova, E. Yu.; Dimitrova, O. V. [Moscow State University, Faculty of Geology (Russian Federation)

2011-11-15T23:59:59.000Z

430

Oxidative Dissolution of UO2 in a Simulated Groundwater Containing Synthetic Nanocrystalline Mackinawite  

SciTech Connect (OSTI)

The long-term success of in situ reductive immobilization of uranium (U) depends on the stability of U(IV) precipitates (e.g., uraninite) under oxic conditions. Field and laboratory studies have implicated iron sulfide minerals as redox buffers or oxidant scavengers that may slow oxidation of reduced U(VI) solid phases by oxygen and Fe(III). Yet, the inhibition mechanism(s) and reaction rates of uraninite (UO2) oxidative dissolution by oxic species such as oxygen in FeS-bearing systems remain largely unresolved. To address this knowledge gap, abiotic batch experiments were conducted with synthetic UO2 in the presence and absence of synthetic mackinawite (FeS) under simulated groundwater conditions of pH = 7, PO2 = 0.02 atm, and PCO2 = 0.05 atm (equivalent to total dissolved carbonate of 0.01 M). The kinetic profiles of dissolved uranium indicate that FeS inhibited UO2 dissolution for 51 hr by effectively scavenging oxygen and keeping dissolved oxygen (DO) low. During this time period, oxidation of structural Fe(II) and S(-II) of FeS were found to control the DO levels, leading to the formation of iron oxyhydroxides and elemental sulfur, respectively, as verified by X-ray diffraction (XRD), Mössbauer and X-ray absorption spectroscopy (XAS). After FeS was depleted due to oxidation, DO levels increased and UO2 oxidative dissolution occurred at an initial rate of rm = 1.2 ± 0.4 ×10-8 mol•g-1•s-1, higher than rm = 5.4 ± 0.3 ×10-9 mol•g-1•s-1 in the control experiment where FeS was absent. Soluble U(VI) products were adsorbed by iron oxyhydroxides (i.e. nanogoethite and ferrihydrite) formed from FeS oxidation, which facilitated the detachment of U(VI) surface complexes and more rapid dissolution of UO2. XAS analysis confirmed the adsorption of U(VI) species, and also showed that U(VI) was not significantly incorporated into iron oxyhydroxide structure. This work reveals that both the oxygen scavenging by FeS and the adsorption of U(VI) to FeS oxidation products may be important in U reductive immobilization systems subject to redox cycling events.

Bi, Yuqiang; Hyun, Sung Pil; Kukkadapu, Ravi K.; Hayes, Kim F.

2013-02-01T23:59:59.000Z

431

Nucleomorph genomes: structure, function, origin and evolution  

E-Print Network [OSTI]

Nucleomorph genomes: structure, function, origin and evolution John M. Archibald Summary and four genomes--two nuclear genomes, an endosymbiont- derived plastid genome and a mitochondrial genome derived from the host cell. Like mitochondrial and plastid genomes, the genome of the endosymbiont nucleus

Archibald, John

432

Ecology and Evolution of Flowering Plant Dominance  

Science Journals Connector (OSTI)

...Arthropoda Cenozoic diversification domination evolution Insecta Invertebrata...in-sect-pollinated plants. A complex set of principles underlying the...diffi-culty the insects would have in locating their prey and in establishing...individuals will account for fruit-set in tropical trees (35). The...

Philip J. Regal

1977-05-06T23:59:59.000Z

433

(M)other Russia: Evolution or Revolution  

E-Print Network [OSTI]

(M)other Russia: Evolution or Revolution Twenty Years since the Collapse of Communism An inter.music.sas.ac.uk £25 (£15 student) Keynote speakers: Sir Rodric Braithwaite (former UK Ambassador to Russia) Vladimir Ambassador to Russia: Russia Today Coffee 11:00 Irina Souch (University of Amsterdam): Double Thinking

Miranda, Eduardo Reck

434

Modelling the evolution of human trail systems  

Science Journals Connector (OSTI)

... Many human social phenomena, such as cooperation, the growth of settlements, traffic dynamics and pedestrian movement, appear to be accessible to mathematical descriptions that invoke self-organization. Here we ... be accessible to mathematical descriptions that invoke self-organization. Here we develop a model of pedestrian motion to explore the evolution of trails in urban green spaces such as parks. ...

Dirk Helbing; Joachim Keltsch; Péter Molnár

1997-07-03T23:59:59.000Z

435

QCD Evolution of Helicity and Transversity TMDs  

SciTech Connect (OSTI)

We examine the QCD evolution of the helicity and transversity parton distribution functions when including also their dependence on transverse momentum. Using an appropriate definition of these polarized transverse momentum distributions (TMDs), we describe their dependence on the factorization scale and rapidity cutoff, which is essential for phenomenological applications.

Prokudin, Alexei [JLAB, Newport News, VA (United States)

2014-01-01T23:59:59.000Z

436

Supporting Database Provenance under Schema Evolution  

E-Print Network [OSTI]

,11] have significantly simplified the problems of preserving the history of the database schemaSupporting Database Provenance under Schema Evolution Shi Gao and Carlo Zaniolo University of California, Los Angeles {gaoshi, zaniolo}@cs.ucla.edu Abstract. Database schema upgrades are common in modern

Zaniolo, Carlo

437

Quantum search by partial adiabatic evolution  

Science Journals Connector (OSTI)

A quantum search algorithm based on the partial adiabatic evolution [Phys. Rev. A 80, 052328 (2009)] is provided. We calculate its time complexity and find that the algorithm improves the time complexity, which is O(N/M), of the local adiabatic search algorithm [Phys. Rev. A 65, 042308 (2002)] to O(N/M).

Ying-Yu Zhang and Song-Feng Lu

2010-09-22T23:59:59.000Z

438

ScheduleDay 1: Molecular Evolution Introduction  

E-Print Network [OSTI]

-Cantor Model Do Exercise Read Ponting, study slides from day 3 and find questions. Day 3: Comparative Genomics Lecture: Comparative Genomics Prepare Projects Practical: Models of Sequence Evolution Read HSW1, study questions. Day 10: Projects Project 1 ­ Population Genomics: Selective Sweeps Project 2 ­ Molecular

Goldschmidt, Christina

439

Microfluidic Large-Scale Integration: The Evolution  

E-Print Network [OSTI]

Microfluidic Large-Scale Integration: The Evolution of Design Rules for Biological Automation, polydimethylsiloxane Abstract Microfluidic large-scale integration (mLSI) refers to the develop- ment of microfluidic, are discussed. Several microfluidic components used as building blocks to create effective, complex, and highly

Quake, Stephen R.

440

GIS at UCAR The evolution of  

E-Print Network [OSTI]

GIS at UCAR The evolution of NCAR's GIS Initiative Olga Wilhelmi ­ ESIG-NCAR Unidata Workshop 24 June, 2003 #12;Why GIS? More questions about various climatological, meteorological, hydrological and tools to access, extract, analyze, and disseminate the required data and information. GIS makes

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" 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

Evidences of Evolution 1. African Elephants  

E-Print Network [OSTI]

: Population density ·One tribe went bersek, as though more glucose was added at the 33k gen? ·Analyze ·Plate cultures vs Shake flask ·Ara+ = white colonies; Ara- = red colonies ·Founding population, 12 from Eocene beds of Africa and Pakistan (Drawing by Carl Buell) #12;OTHER EVOLUTION THEORIES

Mittal, Aditya

442

The Evolution of Compact Binary Star Systems  

E-Print Network [OSTI]

We review the formation and evolution of compact binary stars consisting of white dwarfs (WDs), neutron stars (NSs), and black holes (BHs). Mergings of compact binary stars are expected to be the most important sources for the forthcoming gravitational-wave (GW) astronomy. In the first part of the review, we discuss observational manifestations of close binary stars with NS and/or black components and their merger rate, crucial points in the formation and evolution of compact stars in binary systems, including the treatment of the natal kicks which NSs and BHs acquire during the core collapse of massive stars and the common envelope phase of binary evolution, which are most relevant to the merging rates of NS-NS, NS-BH and BH-BH binaries. The second part of the review is devoted mainly to formation and evolution of binary WDs and their observational manifestations, including their role as progenitors of cosmologically important thermonuclear SN Ia. We also consider AM CVn-stars which are thought to be the best verification binary GW sources for future low-frequency GW space interferometers.

Konstantin Postnov; Lev Yungelson

2014-03-21T23:59:59.000Z

443

Gas Feedback on Stellar Bar Evolution  

E-Print Network [OSTI]

We analyze evolution of live disk-halo systems in the presence of various gas fractions, f_gas less than 8% in the disk. We addressed the issue of angular momentum (J) transfer from the gas to the bar and its effect on the bar evolution. We find that the weakening of the bar, reported in the literature, is not related to the J-exchange with the gas, but is caused by the vertical buckling instability in the gas-poor disks and by a steep heating of a stellar velocity dispersion by the central mass concentration (CMC) in the gas-rich disks. The gas has a profound effect on the onset of the buckling -- larger f_gas brings it forth due to the more massive CMCs. The former process leads to the well-known formation of the peanut-shaped bulges, while the latter results in the formation of progressively more elliptical bulges, for larger f_gas. The subsequent (secular) evolution of the bar differs -- the gas-poor models exhibit a growing bar while gas-rich models show a declining bar whose vertical swelling is driven by a secular resonance heating. The border line between the gas-poor and -rich models lies at f_gas ~ 3% in our models, but is model-dependent and will be affected by additional processes, like star formation and feedback from stellar evolution. The overall effect of the gas on the evolution of the bar is not in a direct J transfer to the stars, but in the loss of J by the gas and its influx to the center that increases the CMC. The more massive CMC damps the vertical buckling instability and depopulates orbits responsible for the appearance of peanut-shaped bulges. The action of resonant and non-resonant processes in gas-poor and gas-rich disks leads to a converging evolution in the vertical extent of the bar and its stellar dispersion velocities, and to a diverging evolution in the bulge properties.

Ingo Berentzen; Isaac Shlosman; Inma Martinez-Valpuesta; Clayton Heller

2007-05-27T23:59:59.000Z

444

Alien Species and Evolution: The Evolutionary Ecology of Exotic Plants, Animals, Microbes and Interacting Native Species  

E-Print Network [OSTI]

Review: Alien Species and Evolution: The EvolutionaryGermany George W. Cox. Alien Species and Evolution: TheRecycled, acid-free paper. Alien Species and Evolution leads

Nehrbass, Nana

2005-01-01T23:59:59.000Z

445

Chapter Ten - DNA Assembler: A Synthetic Biology Tool for Characterizing and Engineering Natural Product Gene Clusters  

Science Journals Connector (OSTI)

Abstract The majority of existing antibacterial and anticancer drugs are natural products or their derivatives. However, the characterization and engineering of these compounds are often hampered by limited ability to manipulate the corresponding biosynthetic pathways. Recently, we developed a genomics-driven, synthetic biology-based method, DNA assembler, for discovery, characterization, and engineering of natural product biosynthetic pathways (Shao, Luo, & Zhao, 2011). By taking advantage of the highly efficient yeast in vivo homologous recombination mechanism, this method synthesizes the entire expression vector containing the target biosynthetic pathway and the genetic elements needed for DNA maintenance and replication in individual hosts in a single-step manner. In this chapter, we describe the general guidelines for construct design. By using two distinct biosynthetic pathways, we demonstrate that DNA assembler can perform multiple tasks, including heterologous expression, introduction of single or multiple point mutations, scar-less gene deletion, generation of product derivatives, and creation of artificial gene clusters. As such, this method offers unprecedented flexibility and versatility in pathway manipulations.

Zengyi Shao; Huimin Zhao

2012-01-01T23:59:59.000Z

446

Therapeutic plasmid DNA versus siRNA delivery: Common and different tasks for synthetic carriers  

Science Journals Connector (OSTI)

Gene therapy offers great opportunities for the treatment of severe diseases including cancer. In recent years the design of synthetic carriers for nucleic acid delivery has become a research field of increasing interest. Studies on the delivery of plasmid DNA (pDNA) have brought up a variety of gene delivery vehicles. The more recently emerged gene silencing strategy by the intracellular delivery of small interfering RNA (siRNA) takes benefit from existing expertise in pDNA transfer. Despite common properties however, delivery of siRNA also faces distinct challenges due to apparent differences in size, stability of the formed nucleic acid complexes, the location and mechanism of action. This review emphasizes the common aspects and main differences between pDNA and siRNA delivery, taking into consideration a wide spectrum of polymer-based, lipidic and peptide carriers. Challenges and opportunities which result from these differences as well as the recent progress made in the optimization of carrier design are presented.

Claudia Scholz; Ernst Wagner

2012-01-01T23:59:59.000Z

447

Analysis of the interband optical transitions: Characterization of synthetic DNA band structure  

Science Journals Connector (OSTI)

We analyze the band structure and interband optical transitions in a dangling backbone ladder DNAmodel. Using this model semiconducting synthetic poly(G)-poly(C) DNA is studied by means of a tight-binding model traditionally used for transport studies. Numerical calculations for optical absorptionspectra are also presented. By studying the eigenstates’ symmetries in uniform and nonuniform DNA chains we conclude that in both cases the transitions are almost vertical in K space. The optical gap turns out larger than the electronic one and an indirect band gap electronic structure for this DNAmodel is revealed. The effects of the environment which are relevant for the wet form of DNA are taken into account by introducing disorder in the backbone levels. We demonstrate that they affect more the spectra in the case of parallel polarization of the incoming light (with respect to the molecule axis). In such a case the closure of the gap appears for a large enough disorder. We also consider the natural helix DNA conformation and find unusual selection rules for interband optical transitions. We propose that a comparison between the obtained spectra and the experiments can provide an insight into the electronic band structure of DNA.

Elena Díaz

2008-01-01T23:59:59.000Z

448

Behavior of Concrete Panels Reinforced with Synthetic Fibers, Mild Steel, and GFRP Composites Subjected to Blasts  

SciTech Connect (OSTI)

The paper presents experimental data generated for calibrating finite element models to predict the performance of reinforced concrete panels with a wide range of construction details under blast loading. The specimens were 1.2 m square panels constructed using Normal Weight Concrete (NWC) or Fiber Reinforced Concrete (FRC). FRC consisted of macro-synthetic fibers dispersed in NWC. Five types of panels were tested: NWC panels with steel bars; FRC panels without additional reinforcement; FRC panels with steel bars; NWC panels with glass fiber reinforced polymer (GFRP) bars; and NWC panels reinforced with steel bars and external GFRP laminates on both faces. Each panel type was constructed with three thicknesses: 152 mm, 254 mm, and 356 mm. FRC panels with steel bars had the best performance for new construction. NWC panels reinforced with steel bars and external GFRP laminates on both faces had the best performance for strengthening or rehabilitation of existing structures. The performance of NWC panels with GFRP bars was strongly influenced by the bar spacing. The behavior of the panels is classified in terms of damage using immediate occupancy, life safety, and near collapse performance levels. Preliminary dynamic simulations are compared to the experimental results.

C. P. Pantelides; T. T. Garfield; W. D. Richins; T. K. Larson; J. E. Blakeley

2012-03-01T23:59:59.000Z

449

Chapter 6 - Adsorption of Synthetic Surfactants from Aqueous Solutions on Natural Adsorbents  

Science Journals Connector (OSTI)

Abstract Colloidal dispersed systems are widespread in nature and present many possibilities for resolving practical tasks, including protection of environment. All the purification methods applied so far only decrease the pollution, but genuine self-purification can be achieved only in the biosphere. The adsorption method of water treatment deriving from different types of synthetic surfactants—sodium dodecylsulfate, cetyltrimethil ammonium bromide, and Triton X-100—on the shungite of type III and type I was selected for our investigation. Tests were done on nonactivated shungite, type III (the Zazhogino deposit), mechanically activated shungite of type I (the Shunga deposit) and type III, as well as mechanically and chemically activated type III shungite , and for every surfactant, the most effective adsorbents were chosen. We found that the maximum adsorption of surfactants depends on the type and conditions of shungite activation as well as on the duration of the adsorption process (i.e., the kinetic process). The data on aspects of industrial perspective and risk assessment, as an example, compare some water treatment technologies for water consumption and processes of self-purification of water in natural ecosystems.

Alisa Sineva

2014-01-01T23:59:59.000Z

450

Calibrating spectral estimation for the LISA Technology Package with multichannel synthetic noise generation  

SciTech Connect (OSTI)

The scientific objectives of the LISA Technology Package experiment on board of the LISA Pathfinder mission demand accurate calibration and validation of the data analysis tools in advance of the mission launch. The level of confidence required in the mission outcomes can be reached only by intensively testing the tools on synthetically generated data. A flexible procedure allowing the generation of a cross-correlated stationary noise time series was set up. A multichannel time series with the desired cross-correlation behavior can be generated once a model for a multichannel cross-spectral matrix is provided. The core of the procedure comprises a noise coloring, multichannel filter designed via a frequency-by-frequency eigendecomposition of the model cross-spectral matrix and a subsequent fit in the Z domain. The common problem of initial transients in a filtered time series is solved with a proper initialization of the filter recursion equations. The noise generator performance was tested in a two-dimensional case study of the closed-loop LISA Technology Package dynamics along the two principal degrees of freedom.

Ferraioli, Luigi; Hueller, Mauro; Vitale, Stefano; Heinzel, Gerhard; Hewitson, Martin; Monsky, Anneke; Nofrarias, Miquel [University of Trento and INFN, via Sommarive 14, 38123 Povo (Trento) (Italy); Albert-Einstein-Institut, Max-Planck-Institut fuer, Gravitationsphysik und Universitaet Hannover, Callinstrasse 38, 30167 Hannover (Germany)

2010-08-15T23:59:59.000Z

451

Investigation of iron opacity experiment plasma gradients with synthetic data analyses  

SciTech Connect (OSTI)

Experiments have been performed at Sandia National Laboratories Z-facility to validate iron opacity models relevant to the solar convection/radiation zone boundary. Sample conditions were measured by mixing Mg with the Fe and using Mg K-shell line transmission spectra, assuming that the plasma was uniform. We develop a spectral model that accounts for hypothetical gradients, and compute synthetic spectra to quantitatively evaluate the plasma gradient size that can be diagnosed. Two sample designs are investigated, assuming linear temperature and density gradients. First, Mg uniformly mixed with Fe enables temperature gradients greater than 10% to be detected. The second design uses Mg mixed into one side and Al mixed into the other side of the sample in an attempt to more accurately infer the sample gradient. Both temperature and density gradients as small as a few percent can be detected with this design. Experiments have successfully recorded spectra with the second design. In future research, the spectral model will be used to place bounds on gradients that exist in Z opacity experiments.

Nagayama, T.; Bailey, J. E.; Rochau, G. A.; Hansen, S. B. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); Mancini, R. C. [Physics Department, University of Nevada, Reno, Nevada 89557 (United States); MacFarlane, J. J.; Golovkin, I. [Prism Computational Sciences, Madison, Wisconsin 53703 (United States)

2012-10-15T23:59:59.000Z

452

Evaluation of synthetic salt water desalination by using a functionalized polysulfone based bipolar membrane electrodialysis cell  

Science Journals Connector (OSTI)

Abstract The work reported herein describes the study of desalination of synthetic salt water at laboratory scale in five different feed concentrations using a lab-made functionalized high molecular weight polysulfone (PSu) polymer based monopolar (cation exchange and anion exchange) and bipolar ion exchange membranes (with PVA as the intermediate layer) using bipolar membrane electrodialysis cell. Various parameters such as conductivity, solution pH, feed concentration, current efficiency, energy consumption, transport number, fluxes and water dissociation efficiency were determined. During the 8 h treatment under optimal conditions (i.e. time, current, higher acid and base concentrations), for the various initial feed concentrations (from 10 g/L to 50 g/L), the current efficiencies obtained ranged from 27% to 75%. And for the highest feed concentration, the highest current efficiency (? max. of about 75% for \\{PSu\\} and 63% for polystyrene divinylbenzene (PSDVB)) with lowest energy consumption (? max. of about 1.2 Wh/mol for \\{PSu\\} and 2.6 Wh/mol for PSDVB) in addition to acid-base production (? max. of about 0.018 N acid: 0.016 N base for \\{PSu\\} and 0.012 N acid: 0.013 N base for PSDVB) was observed. The results of the study demonstrated the promising potential of functionalized polysulfone based ion exchange membranes for greater water dissociation efficiency in desalination of water.

Krishnaveni Venugopal; Sangeetha Dharmalingam

2014-01-01T23:59:59.000Z

453

A XANES study of Cu speciation in high-temperature brines using synthetic fluid inclusions  

SciTech Connect (OSTI)

Cu K-edge X-ray absorption near edge structure (XANES) spectra were recorded from individual synthetic brine fluid inclusions as a function of temperature up to 500 C. The inclusions serve as sample cells for high-temperature spectroscopic studies of aqueous Cu-Cl speciation. Cu{sup +} and Cu{sup 2+} can both be identified from characteristic pre-edge features. Mixed oxidation states can be deconvoluted using linear combinations of Cu{sup +} and Cu{sup 2+} spectra. This work illustrates how complex Cu XANES spectra can be interpreted successfully. Cu{sup 2+} is the stable oxidation state in solution at room temperature and Cu{sup +} at high temperatures. The change in oxidation state with temperature was completely reversible. Cu{sup +} was found to occur exclusively as the linear species [CuCl{sub 2}]{sup -} in solutions containing KCl with Cu:Cl ratios up to 1:6. In the absence of K{sup +}, there is evidence for higher order coordination of Cu{sup +}, in particular the tetrahedral complex [CuCl{sub 4}]{sup 3-}. The importance of such complexes in natural ore-forming fluids is yet to be determined, but may explain the vapor-phase partitioning of Cu as a Cl complex from a Cl-rich brine.

Berry, Andrew J.; Hack, Alistair C.; Mavrogenes, John A.; Newville, Matthew; Sutton, Stephen R. (UC); (ANU)

2010-12-03T23:59:59.000Z

454

Imaging targets embedded in a lossy half space with Synthetic Aperture Radar  

SciTech Connect (OSTI)

This paper addresses theoretical aspects of forming images from an airborne Synthetic Aperture Radar (SAR) of targets buried below the earth`s surface. Soil is generally a lossy, dispersive medium, with wide ranging variability in these attributes depending on soil type, moisture content, and a host of other physical properties. Focussing a SAR subsurface image presents new dimensions of complexity relative to its surface-image counterpart, even when the soil`s properties are known. This paper treats the soil as a lossy, dispersive half space, and presents a practical model for the radar echo-delay time to point scatterers within it. This model is then used to illustrate effects of refraction, dispersion, and attenuation on a SAR`s phase histories, and the resulting image. Various data collection geometries and processing strategies are examined for both 2-Dimensional and 3-Dimensional SAR images. The conclusions from this work are that (1) focussing a SAR image must generally take into account both refraction and dispersion, (2) resolving targets at different depths in lossy soils requires perhaps unprecedented sidelobe attenuation, that for some soils may only be achievable with specialized window functions, (3) the impulse response of the soil itself places a practical limit on the usable bandwidth of the radar, and (4) dynamic ranges and sensitivities will need to be orders of magnitude greater than typical surface-imaging SARs, leading to significant impact on SAR parameters, for example compressing the usable range of pulse repetition frequencies (PRFs).

Doerry, A.W.; Brock, B.C.; Boverie, B.; Cress, D.

1994-05-01T23:59:59.000Z

455

A High Resolution, Light-Weight, Synthetic Aperture Radar for UAV Application  

SciTech Connect (OSTI)

(U) Sandia National Laboratories in collaboration with General Atomics (GA) has designed and built a high resolution, light-weight, Ku-band Synthetic Aperture Radar (SAR) known as "Lynx". Although Lynx can be operated on a wide variety of manned and unmanned platforms, its design is optimized for use on medium altitude Unmanned Aerial Vehicles (UAVS). In particular, it can be operated on the Predator, I-GNAT, and Prowler II platforms manufactured by GA. (U) The radar production weight is less than 120 lb and operates within a 3 GHz band from 15.2 GHz to 18.2 GHz with a peak output power of 320 W. Operating range is resolution and mode dependent but can exceed 45 km in adverse weather (4 mm/hr rain). Lynx has operator selectable resolution and is capable of 0.1 m resolution in spotlight mode and 0.3 m resolution in stripmap mode, over substantial depression angles (5 to 60 deg) and squint angles (broadside ±45 deg). Real-time Motion Compensation is implemented to allow high-quality image formation even during vehicle turns and other maneuvers.

Doerry, A.W.; Hensley, W.H.; Stence, J.; Tsunoda, S.I. Pace, F.; Walker, B,C.; Woodring, M.

1999-05-27T23:59:59.000Z

456

The Elephant in the Room: Dealing with Carbon Emissions from Synthetic Transportation Fuels Production  

SciTech Connect (OSTI)

Carbon dioxide (CO2), produced by conversion of hydrocarbons to energy, primarily via fossil fuel combustion, is one of the most ubiquitous and significant greenhouse gases (GHGs). Concerns over climate change precipitated by rising atmospheric GHG concentrations have prompted many industrialized nations to begin adopting limits on emissions to inhibit increases in atmospheric CO2 levels. The United Nations Framework Convention on Climate Change states as a key goal the stabilization of atmospheric CO2 at a level that prevents “dangerous anthropogenic interference” with the planet’s climate systems. This will require sharply reducing emissions growth rates in developing nations, and reducing CO2 emissions in the industrialized world to half current rates in the next 50 years. And ultimately, stabilization will require that annual emissions drop to almost zero.Recently, there has been interest in producing synthetic transportation fuels via coal-to-liquids (CTL) production, particularly in countries where there is an abundant supply of domestic coal, including the United States. This paper provides an overview of the current state of CTL technologies and deployment, a discussion of costs and technical requirements for mitigating the CO2 impacts associated with a CTL facility, and the challenges facing the CTL industry as it moves toward maturity.

Parker, Graham B.; Dahowski, Robert T.

2007-07-11T23:59:59.000Z

457

Comparison of costs for automobile energy conservation vs synthetic fuel production  

SciTech Connect (OSTI)

This preliminary analysis suggests that there are a large number of potential technical options for reducing energy consumption in automobiles. Furthermore, the cost to the user of purchasing these conservation options is less than the discounted cost of purchasing the additional fuel required if the conservation option is not chosen. There is a significant cost savings even if fuel costs remain at current levels. These savings would increase if fuel prices continue to rise or if more costly than synthetic fuels, at least for another 15 to 20 years. Cost-effective conservation could enable new vehicles to reach 40 to 50 mpg corporate average fuel economy by the year 2000. It is clear that the potential for making these changes exists, but better data are needed to evaluate many of these options and to ensure the development and implementation of those that are desirable. Specifically, there is a need for more applied research in government and industry laboratories. Key areas for this work are discussed here for: (1) optimized engine designs, and (2) efficient vehicle body structures. 10 references, 10 figures, 3 tables.

Gorman, R.; Heitner, K.L.

1980-01-01T23:59:59.000Z

458

Hydrogenation of aromatics in synthetic crude distillates catalyzed by platinum supported in molecular sieves  

SciTech Connect (OSTI)

Catalytic hydrogenation of synthetic crude distillates from Canadian oil sands was carried out over platinum metal supported in pillared interlayered clay (PILC) and Y-zeolite. The molecular sieve supports were employed to modify the properties of dispersed platinum particles and improve their resistance to poisoning by sulfur. The objective was to reduce the distillate aromatic content to meet diesel emission control standards and cetane number requirements. Catalysts were prepared in a series of steps, and metal precursor was loaded using ion-exchange procedures. Characterization was done using X-ray diffraction, hydrogen chemisorption, and proton-induced X-ray emission elemental analysis. Catalytic hydrogenation reactions were carried out by processing distillate feedstocks both high (>100 ppm) and low (<10 ppm) in sulfur using a continuous-flow automated microreactor system. Experimental runs were performed to determine the reaction kinetics and Arrhenius parameters as a means of evaluating and comparing catalyst performance. Significant differences in catalyst activity were found. The Pt/Y-zeolite-alumina catalyst showed a much superior hydrogenation performance under conditions of high sulfur content. The extent of cracking and ring opening was also evaluated and was shown to be minimal under the operating conditions employed.

Kimbara, N.; Charland, J.P. [CANMET, Ottawa, Ontario (Canada)] [CANMET, Ottawa, Ontario (Canada); Wilson, M.F. [CANMET, Devon, Alberta (Canada)] [CANMET, Devon, Alberta (Canada)

1996-11-01T23:59:59.000Z

459

Improved HCN/HNC linelist, model atmospheres and synthetic spectra for WZ Cas  

E-Print Network [OSTI]

We build an accurate database of 5200 HCN and HNC rotation-vibration energy levels, determined from existing laboratory data. 20~000 energy levels in the Harris et al. (2002) linelist are assigned approximate quantum numbers. These assignments, lab determined energy levels and Harris et al (2002) energy levels are incorporated in to a new energy level list. A new linelist is presented, in which frequencies are computed using the lab determined energy levels where available, and the ab initio energy levels otherwise. The new linelist is then used to compute new model atmospheres and synthetic spectra for the carbon star WZ Cas. This results in better fit to the spectrum of WZ Cas in which the absorption feature at 3.56 micron is reproduced to a higher degree of accuracy than has previously been possible. We improve the reproduction of HCN absorption features by reducing the abundance of Si to [Si/H] = --0.5 dex, however, the strengths of the $\\Delta v=2$ CS band heads are over-predicted.

G. J. Harris; J. Tennyson; B. M. Kaminsky; Ya. V. Pavlenko; H. R. A. Jones

2005-12-14T23:59:59.000Z

460

On the convergence of the phase gradient autofocus algorithm for synthetic aperture radar imaging  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) imaging is a class of coherent range and Doppler signal processing techniques applied to remote sensing. The aperture is synthesized by recording and processing coherent signals at known positions along the flight path. Demands for greater image resolution put an extreme burden on requirements for inertial measurement units that are used to maintain accurate pulse-to-pulse position information. The recently developed Phase Gradient Autofocus algorithm relieves this burden by taking a data-driven digital signal processing approach to estimating the range-invariant phase aberrations due to either uncompensated motions of the SAR platform or to atmospheric turbulence. Although the performance of this four-step algorithm has been demonstrated, its convergence has not been modeled mathematically. A new sensitivity study of algorithm performance is a necessary step towards this model. Insights that are significant to the application of this algorithm to both SAR and to other coherent imaging applications are developed. New details on algorithm implementation identify an easily avoided biased phase estimate. A new algorithm for defining support of the point spread function is proposed, which promises to reduce the number of iterations required even for rural scenes with low signal-to-clutter ratios.

Hicks, M.J.

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "biosensor-guided synthetic evolution" from the National Library of EnergyBeta (NLEBeta).
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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

SNM neutron detection using a time-gated synthetic aperture hybrid approach  

SciTech Connect (OSTI)

This work focuses on using forward and adjoint transport in a hybrid application of 3-D deterministic (PENTRAN) and Monte Carlo (MCNP5) codes to model a series of neutron detector blocks. These blocks, or 'channels, ' contain a unique set of moderators with 4 atm He-3 detectors tuned to detect and profile a gross energy spectrum of a passing neutron (SNM) source. Ganging the units together as a large area system enables one to apply time gating the source-detector response to maximize signal to noise responses from a passing source with minimal background; multiple units may be positioned as a collective synthetic aperture detector array to be used as a way of performing real time neutron spectroscopy for detecting special nuclear materials in moving vehicles. The initial design, detector response coupling, confirmation of initial design functionality using adjoint transport calculations, and realistic simulation using PENTRAN and MCNP5 are presented. Future work will include optimization and application to realistic scenarios and additional sources. (authors)

Molinar, M.; Yi, C.; Edgar, C. A.; Manalo, K.; Chin, M.; Sjoden, G. [Nuclear and Radiological Engineering Program, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 770 State Street, Atlanta GA 30332-0745 (United States)

2013-07-01T23:59:59.000Z

462

Detection and speciation of transuranium elements in synthetic groundwater via pulsed-laser excitation  

SciTech Connect (OSTI)

High sensitivity methods for detection and speciation of complexed transuranium ions in synthetic basalt groundwater, and simplified analogs, are being developed which exploit advances in pulsed laser technology. The first demonstration of high sensitivity detection of a transuranium ion at temperatures significantly above ambient is reported using laser photoacoustic spectroscopy (LPAS). The existence of enhanced LPAS signal amplitudes with increasing temperature in aqueous solution is confirmed in LPAS spectra recorded at 30 C, 60 C and 90 C using micromolar concentrations of /sup 241/Am/sup 3+/. A detection sensitivity of 8.5 parts per trillion (weight basis) of /sup 244/Cm/sup 3+/ in a simplified basalt groundwater at 22 C has been achieved using laser-induced fluorescence spectroscopy (LIF). This corresponds to 1 x 10/sup 8/ Cm/sup 3+/ ions in the laser beam. The detailed spectroscopic information obtained by this method points to the existence of previously unobserved Cm/sup 3+/ species. A brief assessment of the applicability and sensitivity of LPAS and LIF methods for speciating transuranium ions in near-neutral pH aqueous solution, such as the groundwater expected in a basalt nuclear waste repository, is presented. 27 refs., 3 figs.

Beitz, J.V.; Bowers, D.L.; Doxtader, M.M.; Maroni, V.A.; Reed, D.T.

1987-01-01T23:59:59.000Z

463

A grid of synthetic ionizing spectra for very hot compact stars from NLTE model atmospheres  

E-Print Network [OSTI]

The precise analysis of properties of planetary nebulae is strongly dependent on good models for the stellar ionizing spectrum. Observations in the UV - X-ray wavelength range as well as NLTE model atmosphere calculations of spectra of their exciting stars have shown that neither blackbody fluxes nor "standard" NLTE atmosphere models which are composed out of hydrogen and helium only are good approximations. Strong differences between synthetic spectra from these compared to observed spectra at energies higher than 54 eV (He II ground state) can be ascribed to the neglect of metal-line blanketing. Realistic modeling of the emergent fluxes of hot stars in the UV - X-ray wavelength range requires metal-line blanketed NLTE model atmospheres which include all elements from hydrogen up to the iron-group. For this purpose, we present a grid (solar and halo abundance ratios) of metal-line blanketed NLTE model atmosphere fluxes which covers the parameter range of central stars of planetary nebulae.

Thomas Rauch

2003-03-20T23:59:59.000Z

464

3D synthetic aperture PIV measurements from artificial vibrating vocal folds  

E-Print Network [OSTI]

During speech, air from the lungs is forced past the vocal folds which vibrate, producing sound. A pulsatile jet of air is formed downstream of the vibrating folds which interacts with the various structures in the airway. Currently, it is postulated that the way this jet interacts with the downstream structures in the airway directly affects the quality of human speech. In order to better understand this jet, it is desirable to visualize the jet in three dimensions. We present the results of a method that reconstructs the three dimensional velocity field using Synthetic aperture PIV (SAPIV) \\cite{Belden:2010}. SAPIV uses an array of high-speed cameras to artificially create a single camera with a variable focal length. This is accomplished by overlapping the images from the array to create a "focal stack". As the images are increasingly overlapped, more distant image planes come into focus. 3D PIV is then performed on the "refocused" focal stack to reconstruct the flow field in three dimensions. SAPIV has th...

Daily, Jesse; Belden, Jesse; Thomson, Scott; Truscott, Tadd

2011-01-01T23:59:59.000Z

465

The effects of surface mapping corrections with synthetic-aperture focusing techniques on ultrasonic imaging  

SciTech Connect (OSTI)

Image processing to improve the resolution of ultrasonic imaging systems requires an accurate knowledge of the geometry and properties of the media through which the ultrasound travels. This is particularly true when a method such as the synthetic-aperture focusing technique (SAFT) is used. For SAFT to function properly, it is necessary to know accurately the path traveled by the ultrasound from transducer to target and back again. A form of SAFT imaging is described in which the imaging routine also constructs a map of the target surface. This map is then used to calculate accurately the propagation history of the ultrasound for the SAFT processing. The resolution and positional accuracy of unprocessed images, unmapped SAFT images, and surface mapped SAFT images are compared. All but the surface mapping images show significant errors in positional accuracy for relatively small surface deviations. The surface mapping correction, however, brings the imaging accuracy back to within the limits of the mechanical experimental error. A more severely distorted surface destroys the phase relationships required for processing unless the surface variations are accounted for. In addition, results achieved with a flat ultrasonic transducer suggest significant simplifications that may ease field implementation of SAFT systems.

Johnson, J.A.; Barna, B.A.

1983-09-01T23:59:59.000Z

466

Effects of surface mapping corrections with synthetic-aperture focusing techniques on ultrasonic imaging  

SciTech Connect (OSTI)

Image processing to improve the resolution of ultrasonic imaging systems requires an accurate knowledge of the geometry and properties of the media through which the ultrasound travels. This is particularly true when a method such as the Synthetic Aperture Focusing Technique (SAFT) is used. For SAFT to function properly, it is necessary to accurately know the path traveled by the ultrasound from transducer to target and back again. A form of SAFT imaging is described in which the image routine also constructs a map of the target surface. This map is then used to accurately calculate the propagation history of the ultrasound for the SAFT processing. The resolution and positional accuracy of unprocessed images, unmapped SAFT images, and surface mapping SAFT images are compared. All but the surface mapping images show significant errors in positional accuracy for relatively small surface deviations. The surface mapping correction however, brings the imaging accuracy back to within the limits of the mechanical experimental error. In addition, results achieved with a flat ultrasonic transducer suggest significant simplifications that may ease field implementation of SAFT systems.

Barna, B.A.; Johnson, J.A.

1981-01-01T23:59:59.000Z

467

Engine performance and emissions from the combustion of low-temperature Fischerâ??Tropsch synthetic diesel fuel and biodiesel rapeseed methyl ester blends  

Science Journals Connector (OSTI)

The combustion of oxygenated biodiesel (rapeseed methyl ester (RME)) improves the engine-out particulate matter, hydrocarbon and carbon monoxide (CO) emissions, while the low-temperature Fischerâ??Tropsch synthetic paraffinic diesel fuel improves engine-out NOx, CO, hydrocarbon and particulate matter emissions. Blending synthetic diesel (SD) fuel with oxygenated biodiesel could unlock potential performance synergies in the fuel properties (e.g. O2 content in RME and high cetane number of the synthetic fuels) of such blends and benefit engine performance and emissions. The combustion of synthetic diesel fuel/RME blend, named synthetic diesel B50, has shown similar combustion characteristics to diesel fuel, while simultaneous improvements in engine efficiency and smoke-NOx trade-off were achieved by taking advantage of the fuel's properties. The engine thermal efficiency was dependent on the fuel type, and followed the general trend: synthetic diesel > SDB50 > diesel > RME. Therefore, it has been shown that the design of a synthetic fuel with properties similar to the fuel blends presented in this work could improve engine-out NOx, smoke and hydrocarbon emissions and maintain or improve engine performance.

Kampanart Theinnoi; Athanasios Tsolakis; Sathaporn Chuepeng; Andrew P.E. York; Roger F. Cracknell; Richard H. Clark

2009-01-01T23:59:59.000Z

468

Efficiency and Evolution of Water Transport Systems in Higher Plants: A Modelling Approach. II. Stelar Evolution  

Science Journals Connector (OSTI)

...July 1994 research-article Efficiency and Evolution of Water Transport Systems in Higher...protostele and siphonostele in water conduction was analysed numerically...identical with regard to water transport efficiency. The Royal Society is collaborating...

1994-01-01T23:59:59.000Z

469

Evolution of MDA-5/RIG-I-dependent innate immunity: Independent evolution by domain grafting  

Science Journals Connector (OSTI)

...proteins. Abbreviations: csp, caspase; cdf...Abbreviations: cdf, CARDif; csp, caspase. Solid black...mechanism that existed before plants and animals diverged . Mol Biol...Activation of the interferon system by short-interfering...RNA Helicases chemistry classification genetics Evolution...

Devanand Sarkar; Rob DeSalle; Paul B. Fisher

2008-01-01T23:59:59.000Z

470

Solar Energy Evolution and Diffusion Studies | Department of...  

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

Evolution and Diffusion Studies Solar Energy Evolution and Diffusion Studies Graphic of a map with pinpoints and a photo of a house with solar panels on the roof. Through the Solar...

471

Optimization Online - A Parallel Evolution Strategy for an Earth ...  

E-Print Network [OSTI]

Jan 15, 2015 ... Keywords: Evolution strategy (ES), global convergence, Earth imaging, inverse problem, high performance computing (HPC), search space ...

Y. Diouane

2015-01-15T23:59:59.000Z

472

Proceeding of the International Conference on Nonlinear Evolution ...  

E-Print Network [OSTI]

Proceeding of the International Conference on Nonlinear Evolution Partial. Differential Equations, June 1993, Beijing, China. NONLINEAR GALERKIN METHOD.

473

Temporal evolution of MHD shocks in the interstellar medium  

Science Journals Connector (OSTI)

......672-682 Evolution of MHD shocks in the interstellar...are significant in these diagrams. and make use of different...are significant in these diagrams. 1998 RAS, MNRAS 295, 672-682 Evolution of MHD shocks in the interstellar...10 10-8 Evolution of MHD shocks in the interstellar......

J.-P. Chièze; G. Pineau des Forêts; D. R. Flower

1998-04-11T23:59:59.000Z

474

Catherine Grant (MIT) Oct 25, 2004 Evolution of ACIS Performance  

E-Print Network [OSTI]

Catherine Grant (MIT) Oct 25, 2004 Evolution of ACIS Performance Catherine Grant for the ACIS Instrument Team #12;ACIS Performance Evolution Catherine Grant (MIT) Oct 25, 2004 Summary · Slow gradual gain ­ October 2003 solar activity #12;ACIS Performance Evolution Catherine Grant (MIT) Oct 25, 2004

Grant, Catherine E.

475

An assessment of the usefulness of 5 new synthetic pyrethroids in IPM programs for tobacco budworm control in cotton  

E-Print Network [OSTI]

New Synthetic Pyrethroids in IPM Programs for Tobacco Budworm Control in Cotton. (Mlay 1981) Sinnappu Victor Rajakulendran, B. Sc. (Agri. ) University of Sri Lanka Chairman of Advisory Committee: Dr. F. W. Plapp, Jr. Toxicity measurements were... of the synergist with any of the several processes that de- termine the ability of the insecticide to penetrate the organism and to be subsequently transported to the target site in concentrations sufficient to cause a toxic effect. However, most known cases...

Rajakulendran, Sinnappu Victor

2012-06-07T23:59:59.000Z

476

C H A P T E R F O U R T E E N Microfluidics for Synthetic Biology  

E-Print Network [OSTI]

C H A P T E R F O U R T E E N Microfluidics for Synthetic Biology: From Design to Execution M. S of a microfluidic chip 298 1.2. A parallel DAW device 322 1.3. Cell tracking 326 1.4. DAW hardware and software 334. coli 358 3.2. Method to set up a MDAW microfluidic experiment 364 Acknowledgments 371 References 371

Hasty, Jeff

477

Program plan for the development of advanced synthetic-diamond drill bits for hard-rock drilling  

SciTech Connect (OSTI)

Eight companys have teamed with Sandia Labs to work on five projects as part of a cooperative effort to advance the state of the ar in synthetic-diamond drill bit design and manufacture. DBS (a Baroid Company), Dennis Tool Company, Hughes Christensen Company, Maurer Engineering, Megadiamond, Security Diamond Products, Slimdril International, and Smith International. Objective of each project is to develop advanced bit technology that results in new commercial products with longer bit life and higher penetration rates in hard formations. Each project explores a different approach to synthetic-diamond cutter and bit design and, consequently, uses different approaches to developing the technology. Each of these approaches builds or the respective companies` capabilities and current product interests. Sandia`s role is to assure integration of the individual projects into a coherent program and tc provide unique testing and analytical capabilities where needed. One additional company, Amoco Production Research, will provide synthetic-diamond drill bit research expertise and field testing services for each project in the program.

Glowka, D.A.; Schafer, D.M.

1993-09-01T23:59:59.000Z

478

The use of synthetic hydrocalcite as a chloride-ion getter for a barrier aluminum anodization process  

SciTech Connect (OSTI)

Chloride ion contamination at parts per billion concentrations plaques electrochemists studying barrier anodic aluminum oxide film growth and anodic aluminum oxide capacitor manufacturers. Chloride ion contamination slows film growth and reduces film quality. We have demonstrated that synthetic hydrocalcite substantially reduces the detrimental effects of chloride ion contamination in an aqueous electrolyte commonly used to grow barrier anodic aluminum oxide. We have determined that problems arise if precautions are not taken when using synthetic hydrocalcite as a chloride-ion getter in an aqueous electrolyte. Synthetic hydrocalcite is somewhat hydrophobic. If this powder is added directly to an aqueous electrolyte, some powder disperses; some floats to the top of the bath and forms scum that locally impedes anodic film formation. Commercially available powder contains a wide range of particle sizes including submicrometer-sized particles that can escape through filters into the electrolyte and cause processing problems. These problems can be over come if (1) the getter is placed in filter bags, (2) a piece of filter paper is used to skim trace amounts of getter floating on the top of the bath, (3) dummy runs are performed to scavenge chloride-ion loaded getter micelles dispersed in the bath, and (4) substrates are rinsed with a strong stream of deionized water to remove trace amounts of powder after anodization.

Panitz, J.K.G.; Sharp, D.J.

1995-11-01T23:59:59.000Z

479

Integrated Operation of INL HYTEST System and High-Temperature Steam Electrolysis for Synthetic Natural Gas Production  

SciTech Connect (OSTI)

The primary feedstock for synthetic fuel production is syngas, a mixture of carbon monoxide and hydrogen. Current hydrogen production technologies rely upon fossil fuels and produce significant quantities of greenhouse gases as a byproduct. This is not a sustainable means of satisfying future hydrogen demands, given the current projections for conventional world oil production and future targets for carbon emissions. For the past six years, the Idaho National Laboratory has been investigating the use of high-temperature steam electrolysis (HTSE) to produce the hydrogen feedstock required for synthetic fuel production. High-temperature electrolysis water-splitting technology, combined with non-carbon-emitting energy sources, can provide a sustainable, environmentally-friendly means of large-scale hydrogen production. Additionally, laboratory facilities are being developed at the INL for testing hybrid energy systems composed of several tightly-coupled chemical processes (HYTEST program). The first such test involved the coupling of HTSE, CO2 separation membrane, reverse shift reaction, and methanation reaction to demonstrate synthetic natural gas production from a feedstock of water and either CO or a simulated flue gas containing CO2. This paper will introduce the initial HTSE and HYTEST testing facilities, overall coupling of the technologies, testing results, and future plans.

Carl Marcel Stoots; Lee Shunn; James O'Brien

2010-06-01T23:59:59.000Z

480

Abigail Golden, Dept. of Ecology, Evolution and Environmental Biology Mentor: Dr. Joshua Drew, Dept. of Ecology, Evolution and Environmental Biology  

E-Print Network [OSTI]

Abigail Golden, Dept. of Ecology, Evolution and Environmental Biology Mentor: Dr. Joshua Drew, Dept. of Ecology, Evolution and Environmental Biology Advisor: Dr. Elisa Bone, Dept. of Ecology, Evolution their fishing practices, which species they targeted most heavily, and aspects of their traditional ecological

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481

Relationships between HIV spread and evolution examined  

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

3 » 3 » November » Relationships between HIV spread and evolution examined Relationships between HIV spread and evolution examined Thomas Leitner of LANL and collaborators are investigating the development of HIV from the point of contraction onwards. November 14, 2013 Scanning electron micrograph of HIV-1 budding (in green) from cultured lymphocytes. The image has been colored to highlight important features. Photo credit: C. Goldsmith, Centers for Disease Control and Prevention. Scanning electron micrograph of HIV-1 budding (in green) from cultured lymphocytes. The image has been colored to highlight important features. Photo credit: C. Goldsmith, Centers for Disease Control and Prevention. They are examining the relationships between the spread of the virus in a

482

The Cosmic Evolution Survey (COSMOS) -- Overview  

E-Print Network [OSTI]

The Cosmic Evolution Survey (COSMOS) is designed to probe the correlated evolution of galaxies, star formation, active galactic nuclei (AGN) and dark matter (DM) with large-scale structure (LSS) over the redshift range z $> 0.5 $ to 6. The survey includes multi-wavelength imaging and spectroscopy from X-ray to radio wavelengths covering a 2 $\\sq$\\deg area, including HST imaging. Given the very high sensitivity and resolution of these datasets, COSMOS also provides unprecedented samples of objects at high redshift with greatly reduced cosmic variance, compared to earlier surveys. Here we provide a brief overview of the survey strategy, the characteristics of the major COSMOS datasets, and summarize the science goals.

Scoville, N Z; Brusa, M; Capak, P; Carollo, C M; Elvis, M; Giavalisco, M; Guzzo, L; Hasinger, G; Impey, C; Kneib, J P; LeFevre, O; Lilly, S J; Mobasher, B; Renzini, A; Rich, R M; Sanders, D B; Schinnerer, E; Schminovich, D; Shopbell, P; Taniguchi, Y; Tyson, N D

2006-01-01T23:59:59.000Z

483

The Cosmic Evolution Survey (COSMOS) -- Overview  

E-Print Network [OSTI]

The Cosmic Evolution Survey (COSMOS) is designed to probe the correlated evolution of galaxies, star formation, active galactic nuclei (AGN) and dark matter (DM) with large-scale structure (LSS) over the redshift range z $> 0.5 $ to 6. The survey includes multi-wavelength imaging and spectroscopy from X-ray to radio wavelengths covering a 2 $\\sq$\\deg area, including HST imaging. Given the very high sensitivity and resolution of these datasets, COSMOS also provides unprecedented samples of objects at high redshift with greatly reduced cosmic variance, compared to earlier surveys. Here we provide a brief overview of the survey strategy, the characteristics of the major COSMOS datasets, and summarize the science goals.

N. Scoville; H. Aussel; M. Brusa; P. Capak; C. M. Carollo; M. Elvis; M. Giavalisco; L. Guzzo; G. Hasinger; C. Impey; J. -P. Kneib; O. LeFevre; S. J. Lilly; B. Mobasher; A. Renzini; R. M. Rich; D. B. Sanders; E. Schinnerer; D. Schminovich; P. Shopbell; Y. Taniguchi; N. D. Tyson

2006-12-12T23:59:59.000Z

484

The Cosmic Evolution Survey (COSMOS): Overview  

Science Journals Connector (OSTI)

The Cosmic Evolution Survey (COSMOS) is designed to probe the correlated evolution of galaxies, star formation, active galactic nuclei (AGNs), and dark matter (DM) with large-scale structure (LSS) over the redshift range z > 0.5-6. The survey includes multiwavelength imaging and spectroscopy from X-ray-to-radio wavelengths covering a 2 deg2 area, including HST imaging. Given the very high sensitivity and resolution of these data sets, COSMOS also provides unprecedented samples of objects at high redshift with greatly reduced cosmic variance, compared to earlier surveys. Here we provide a brief overview of the survey strategy, the characteristics of the major COSMOS data sets, and a summary the science goals.

N. Scoville; H. Aussel; M. Brusa; P. Capak; C. M. Carollo; M. Elvis; M. Giavalisco; L. Guzzo; G. Hasinger; C. Impey; J.-P. Kneib; O. LeFevre; S. J. Lilly; B. Mobasher; A. Renzini; R. M. Rich; D. B. Sanders; E. Schinnerer; D. Schminovich; P. Shopbell; Y. Taniguchi; N. D. Tyson

2007-01-01T23:59:59.000Z

485

Spatial and Spectral evolution of Turbulence Spectra  

SciTech Connect (OSTI)

We present a general formulation of a theory of spreading of turbulence based on nonlinear mode couplings, which is inherently linked to spectral evolution. We present a derivation from simple two-field perspective based upon a gradien diffusion hypothesis, justified by a two scale direct interaction approximation (TSDIA) for weak turbulence. The complexity and anisotropy of spatial and spectral dynamics, however, limits our analysis to examination of different classes of triad interactions. We demonstrate that radially extended eddys, are the most effective structures in promoting spreading of turbulence. Thus, spectral evolution that tends towards such eddies, facilitate spatial spreading. We also show that, in a two field model, due to their respective spectral tendencies, internal energy spreads faster than kinetic energy.

Guercan, Oe. D.; Diamond, P. H. [Center for Astrophysics and Space Sciences, La Jolla, CA 92093-0424 (United States); Department of Physics University of California at San Diego, La Jolla, CA 92093-0424 (United States); Department of Physics, University of California at San Diego, La Jolla, CA 92093-0319 (United States); Hahm, T. S. [Princeton Plasma Physics Laboratory, Princeton, NJ 08543-0451 (United States)

2006-11-30T23:59:59.000Z

486

The YNEV stellar evolution and oscillation code  

E-Print Network [OSTI]

We have developed a new stellar evolution and oscillation code YNEV, which calculates the structures and evolutions of stars, taking into account hydrogen and helium burning. A nonlocal turbulent convection theory and an updated overshoot mixing model are optional in this code. The YNEV code can evolve low- and intermediate-mass stars from pre-main sequence (PMS) to thermal pulsing asymptotic branch giant (TP-AGB) or white dwarf. The YNEV oscillation code calculates the eigenfrequencies and eigenfunctions of the adiabatic oscillations of given stellar structure. The input physics and the numerical scheme adopted in the code are introduced in this paper. The examples of solar models, stellar evolutionary tracks of low- and intermediate-mass stars with different convection theory (i.e., mixing-length theory (MLT) and the nonlocal turbulent convection theory), and stellar oscillations are shown.

Zhang, Q S

2014-01-01T23:59:59.000Z

487

Software Process Evolution at the SEL  

Science Journals Connector (OSTI)

The Software Engineering Laboratory of the National Aeronautics and Space Administration's Goddard Space Flight Center has been adapting, analyzing, and evolving software processes for the last 18 years (1976-94). Their approach is based on the Quality ... Keywords: Goddard Space Flight Center, National Aeronautics and Space Administration, Quality Improvement Paradigm, SEL, Software Engineering Laboratory, aerospace computing, candidate process, cleanroom development method, code comments, developer effort, evolutionary process, process effects, reading techniques, software metrics, software process evolution, software quality, standards, systematic process

Victor Basili; Scott Green

1994-07-01T23:59:59.000Z

488

Sterrewacht Gas evolution in protoplanetary disks  

E-Print Network [OSTI]

Sterrewacht Leiden Gas evolution in protoplanetary disks W.F. Thi , E.F. van Dishoeck , G are surrounded by 10 ­10 M of gas+dust in disks with sizes of 100­400 AU. This material may form extrasolar planets. 3 Disks have also been imaged around Vega-like stars, but are thought to be gas­poor with "!#$ M

Zadelhoff, Gerd-Jan van

489

Radio Source Evolution on Galactic Scales  

E-Print Network [OSTI]

profile external atmosphere. Key words: galaxies: jets – radiation mechanisms: non-thermal – galaxies: active 1 INTRODUCTION Understanding the detailed evolution of radio-loud jets and co- coons as they propagate through the intragalactic and intracluster... shocks the IGM/ICM at the hotspot, and once the jet material becomes under-dense, a backflow of material at the hotspot inflates enormous cocoons filled with a plasma of particles and magnetic fields. The jet pushes forward and the co- coon expands...

Maciel, T.; Alexander, P.

2014-01-01T23:59:59.000Z

490

Time-evolution problem in regge calculus  

Science Journals Connector (OSTI)

The simplectic approximation to Einstein's equations ("Regge calculus") is derived by considering the net to be actually a (singular) Riemannian manifold. Specific nets for open and closed spaces are introduced in terms of which one can formulate the general time-evolution problem, which thereby reduces to the repeated solution of finite sets of coupled nonlinear (algebraic) equations. The initial-value problem is also formulated in simplectic terms.

Rafael Sorkin

1975-07-15T23:59:59.000Z

491

Laguerre method to solve parton evolution equations  

SciTech Connect (OSTI)

The DGLAP evolution equations for non-singlet sector of parton density is solved in x-space based on Laguerre polynomial expansion. High numerical accuracy is achieved by expanding over a set of approximately 30 polynomials. The result of evolved parton densities to high energy scales are in good agreement with phenomenological GRV model. To improve the results we can employ a constituent quark model.

Mirjalili, A. [Physics Department, Yazd University, P.O.B. 89195-741, Yazd (Iran, Islamic Republic of); School of Particles and Accelerators (IPM), Institute for Research in Fundamental Sciences, 19395-5531, Tehran (Iran, Islamic Republic of); Yazdanpanah, M. M. [Physics Department, Shahid-Bahonar University, Kerman (Iran, Islamic Republic of); School of Particles and Accelerators (IPM), Institute for Research in Fundamental Sciences, 19395-5531, Tehran (Iran, Islamic Republic of); Sharifinejad, H. R. [Physics Department, Yazd University, P.O.B. 89195-741, Yazd (Iran, Islamic Republic of)

2011-05-23T23:59:59.000Z

492

Symmetry and Evolution in Quantum Gravity  

E-Print Network [OSTI]

We propose an operator constraint equation for the wavefunction of the Universe that admits genuine evolution. While the corresponding classical theory is equivalent to the canonical decomposition of General Relativity, the quantum theory makes predictions that are distinct from Wheeler-DeWitt cosmology. Furthermore, the local symmetry principle - and corresponding observables - of the theory have a direct interpretation in terms of a conventional gauge theory, where the gauge symmetry group is that of spatial conformal diffeomorphisms (that preserve the spatial volume of the Universe). The global evolution is in terms of an arbitrary parameter that serves only as an unobservable label for successive states of the Universe. Our proposal follows unambiguously from a suggestion of York whereby the independently specifiable initial data in the action principle of General Relativity is given by a conformal geometry and the spatial average of the York time on the spacelike hypersurfaces that bound the variation. Remarkably, such a variational principle uniquely selects the form of the constraints of the theory so that we can establish a precise notion of both symmetry and evolution in quantum gravity.

Sean Gryb; Karim Thebault

2014-03-25T23:59:59.000Z

493

Multiphase Chemical Evolution in Elliptical Galaxies  

E-Print Network [OSTI]

The recent {\\em ASCA} results show that the iron abundance of the X-ray gas of elliptical galaxies is less than the solar abundance ($Z_{\\sun}$). The observed low iron abundance is inconsistent with the predictions of the previous chemical evolution models. In order to solve this problem, we present a simple model of chemical evolution for elliptical galaxies after the galactic wind period under the assumption that the gases ejected from stars do not mix with the circumferential gas. The ejected gas components evolve separately according to their birth time and origin. We have investigated their evolution qualitatively. The gas components originated from supernova remnant shells cool and drop out of the hot gas faster than the other components because of their high density and metal abundance. As a result, supernovae cannot heat the whole gas of the elliptical galaxies effectively, in contrary to the previous results. If the metal abundance of mass-loss gas is not uniform, the mass-loss gas with higher abundance also easily drops out and the average abundance can decrease. We believe that this is a hint of solving the low abundance problem.

Y. Fujita; J. Fukumoto; K. Okoshi

1996-05-19T23:59:59.000Z

494

Identification of novel synergistic targets RACK-1 and galectin-1 for rational drug combinations with PI3 Kinase inhibitors using siRNA synthetic lethality screening.  

Science Journals Connector (OSTI)

...Proffered Abstracts AACR Annual Meeting-- Apr 12-16, 2008; San Diego, CA Identification of novel synergistic targets RACK-1 and galectin-1 for rational drug combinations with PI3 Kinase inhibitors using siRNA synthetic lethality screening. Yong...

Yong- Kim; Ningyi Tiao; Tiffany Lafortune; Ta Jen Liu; Garth Powis; Alfred WK Yung; Dimpy Koul

2008-05-01T23:59:59.000Z

495

Evaluation of synthetic hexaploid wheats (derivative of durum wheats and Aegilops tauschii accessions) for studying genetic diversity using randomly amplified polymorphic DNA (RAPD) markers  

Science Journals Connector (OSTI)

Synthetic hexaploid (SH) wheat derived from crossing...Aegilops tauschii...provide germplasm for wheat improvement as the conventional wheat varieties possess very low genetic diversity. This study aims to identi...

Muhammad Shakeel; Muhammad Ilyas; Mujeeb Kazi

2013-01-01T23:59:59.000Z

496

Correction of the neuropathogenic human apolipoprotein E4 (APOE4) gene to APOE3 in vitro using synthetic RNA/DNA oligonucleotides (chimeraplasts)  

Science Journals Connector (OSTI)

Apolipoprotein E (apoE) is a multifunctional circulating 34-kDa protein, whose gene encodes single-nucleotide polymorphisms linked to several neurodegenerative diseases. Here, we evaluate whether synthetic RNA/DNA

Aristides D. Tagalakis; J. George Dickson…

2005-01-01T23:59:59.000Z

497

Synthetic octapeptide pyroGLU-ASP-ASP-SER-ASP-GLU-GLU-ASN controls DNA transcription in vitro by RNA polymerase II  

Science Journals Connector (OSTI)

The effect of the synthetic octapeptide pyroGLU-ASP-ASP-SER-ASP-GLU- ... phosphorylated by casein kinase II, CKII) on DNA transcription by RNA polymerase II has been ... this domain in RNA polymerase II activity ...

A. Angiolillo; A. Desgro; V. Marsili; F. Panara; G. L. Gianfranceschi

498

Phosphorylation of the synthetic octapeptide pyroGlu-ASP-ASP-SER-ASP-GLU-GLU-ASN and binding to DNA in presence of divalent cations  

Science Journals Connector (OSTI)

Small acidic peptides involved in gene expression have been isolated from prokaryotic and eukaryotic cells. Synthetic peptides, designed on the basis of native ... peptides in in vitro reconstituted systems. Thes...

Elena Cardellini; Doria Ponti; Gian Luigi Gianfranceschi

1999-12-01T23:59:59.000Z

499

Enzyme-Linked Immunosorbent Assay (ELISA) for the Detection of Use of the Synthetic Cannabinoid Agonists UR-144 and XLR-11 in Human Urine  

Science Journals Connector (OSTI)

......Several commonly encountered drugs of abuse were evaluated to determine potential...B. , Kleinschmidt K., Schwarz E., Young A. Synthetic cannabinoid and marijuana...A. UR-144 in products sold via the internet: identification of related compounds......

Amanda L.A. Mohr; Bill Ofsa; Alyssa Marie Keil; John R. Simon; Matthew McMullin; Barry K. Logan

2014-09-01T23:59:59.000Z

500

Evaluation of and Suggested Improvements to the WSM6 Microphysics in WRF-ARW Using Synthetic and Observed GOES-13 Imagery  

Science Journals Connector (OSTI)

Synthetic satellite imagery can be employed to evaluate simulated cloud fields. Past studies have revealed that the Weather Research and Forecasting (WRF) single-moment 6-class (WSM6) microphysics scheme in the Advanced Research WRF (WRF-ARW) ...

Lewis Grasso; Daniel T. Lindsey; Kyo-Sun Sunny Lim; Adam Clark; Dan Bikos; Scott R. Dembek

2014-10-01T23:59:59.000Z